problem solving puzzle questions

20 Tough Riddles for Adults That Will Have You Scratching Your Head

Put your logic and math skills to the test. No cheating!

So go grab a pencil and a piece of scratch paper and prepare to rip your hair out (and we really do mean that in the best way possible). When you think you’ve got the right answer, click the link at the bottom of each riddle to find the solution. Got it wrong? No worries, you have 19 other riddles to test out.

Navigate Through Our Riddles:

Puzzmo / The King’s Orders / How Many Eggs? / The Gold Chain / Pickleball / Circuit Breaker / Two Trains, Two Grandmas / Ant Math / Peppermint Patty / Great American Rail Trail / A Cruel SAT Problem / Movie Stars Cross a River / Tribute to a Math Genius / One Belt, One Earth / Elbow Tapping / Whiskey Problem / Doodle Problem / Stumping Scientists / What ’ s On Her Forehead? / Keanu for President / Who Opened the Lockers?

Riddle No. 1: The King’s Orders Make for One Hell of a Brain Teaser

Difficulty: easy.

King Nupe of the kingdom Catan dotes on his two daughters so much that he decides the kingdom would be better off with more girls than boys, and he makes the following decree: All child-bearing couples must continue to bear children until they have a daughter!

But to avoid overpopulation, he makes an additional decree: All child-bearing couples will stop having children once they have a daughter! His subjects immediately begin following his orders.

After many years, what’s the expected ratio of girls to boys in Catan?

The likelihood of each baby born being a girl is, of course, 50 percent.

Ready for the solution? Click here to see if you’re right .

Riddle No. 2: How Many Eggs Does This Hen Lay?

This problem is in honor of my dad, Harold Feiveson. It’s due to him that I love math puzzles, and this is one of the first problems (of many) that he gave me when I was growing up.

A hen and a half lays an egg and a half in a day and a half. How many eggs does one hen lay in one day?

Riddle No. 3: The Gold Chain Math Problem Is Deceptively Simple

Difficulty: moderate.

You’re rummaging around your great grandmother’s attic when you find five short chains each made of four gold links. It occurs to you that if you combined them all into one big loop of 20 links, you’d have an incredible necklace. So you bring it into a jeweler, who tells you the cost of making the necklace will be $10 for each gold link that she has to break and then reseal.

How much will it cost?

Riddle No. 4: Try to Solve This Pickleball Puzzle

Difficulty: 🚨hard🚨.

Kenny, Abby, and Ned got together for a round-robin pickleball tournament, where, as usual, the winner stays on after each game to play the person who sat out that game. At the end of their pickleball afternoon, Abby is exhausted, having played the last seven straight games. Kenny, who is less winded, tallies up the games played:

Kenny played eight games

Abby played 12 games

Ned played 14 games

Who won the fourth game against whom?

How many total games were played?

Riddle No. 5: Our Circuit Breaker Riddle Is Pure Evil. Sorry.

The circuit breaker box in your new house is in an inconvenient corner of your basement. To your chagrin, you discover none of the 100 circuit breakers is labeled, and you face the daunting prospect of matching each circuit breaker to its respective light. (Suppose each circuit breaker maps to only one light.)

To start with, you switch all 100 lights in the house to “on,” and then you head down to your basement to begin the onerous mapping process. On every trip to your basement, you can switch any number of circuit breakers on or off. You can then roam the hallways of your house to discover which lights are on and which are off.

What is the minimum number of trips you need to make to the basement to map every circuit breaker to every light?

The solution does not involve either switching on or off the light switches in your house or feeling how hot the lightbulbs are. You might want to try solving for the case of 10 unlabeled circuit breakers first.

Riddle No. 6: Two Trains. Two Grandmas. Can You Solve This Tricky Math Riddle?

Jesse’s two grandmothers want to see him every weekend, but they live on opposite sides of town. As a compromise, he tells them that every Sunday, he’ll head to the subway station nearest to his apartment at a random time of the day and will hop on the next train that arrives.

If it happens to be the train traveling north, he’ll visit his Grandma Erica uptown, and if it happens to be the train traveling south, he’ll visit his Grandma Cara downtown. Both of his grandmothers are okay with this plan, since they know both the northbound and southbound trains run every 20 minutes.

But after a few months of doing this, Grandma Cara complains that she sees him only one out of five Sundays. Jesse promises he’s indeed heading to the station at a random time each day. How can this be?

The trains always arrive at their scheduled times.

Riddle No. 7: Here’s a Really F@*#ing Hard Math Problem About Ants

Max and Rose are ant siblings. They love to race each other, but always tie, since they actually crawl at the exact same speed. So they decide to create a race where one of them (hopefully) will win.

For this race, each of them will start at the bottom corner of a cuboid, and then crawl as fast as they can to reach a crumb at the opposite corner. The measurements of their cuboids are as pictured:

If they both take the shortest possible route to reach their crumb, who will reach their crumb first? (Don’t forget they’re ants, so of course they can climb anywhere on the edges or surface of the cuboid.)

Remember: Think outside the box.

Riddle No. 8: This Peppermint Patty Riddle Is Practically Impossible

You’re facing your friend, Caryn, in a “candy-off,” which works as follows: There’s a pile of 100 caramels and one peppermint patty. You and Caryn will go back and forth taking at least one and no more than five caramels from the candy pile in each turn. The person who removes the last caramel will also get the peppermint patty. And you love peppermint patties.

Suppose Caryn lets you decide who goes first. Who should you choose in order to make sure you win the peppermint patty?

First, solve for a pile of 10 caramels.

Riddle No. 9: Can You Solve the Great American Rail-Trail Riddle?

This problem was suggested by the physicist P. Jeffrey Ungar.

Finally, the Great American Rail-Trail across the whole country is complete! Go ahead, pat yourself on the back—you’ve just installed the longest handrail in the history of the world, with 4,000 miles from beginning to end. But just after the opening ceremony, your assistant reminds you that the metal you used for the handrail expands slightly in summer, so that its length will increase by one inch in total.

“Ha!” you say, “One inch in a 4,000 mile handrail? That’s nothing!” But … are you right?

Let’s suppose when the handrail expands, it buckles upward at its weakest point, which is in the center. How much higher will pedestrians in the middle of the country have to reach in summer to grab the handrail? That is, in the figure below, what is h ? (For the purposes of this question, ignore the curvature of the Earth and assume the trail is a straight line.)

Pythagoras is a fascinating historical figure.

Riddle No. 10: This Riddle Is Like an Especially Cruel SAT Problem. Can You Find the Answer?

Amanda lives with her teenage son, Matt, in the countryside—a car ride away from Matt’s school. Every afternoon, Amanda leaves the house at the same time, drives to the school at a constant speed, picks Matt up exactly when his chess club ends at 5 p.m., and then they immediately return home together at the same constant speed. But one day, Matt isn’t feeling well, so he leaves chess practice early and starts to head home on his portable scooter.

After Matt has been scooting for an hour, Amanda comes across him in her car (on her usual route to pick him up), and they return together, arriving home 40 minutes earlier than they usually do. How much chess practice did Matt miss?

Consider the case where Amanda meets Matt exactly as she’s leaving their house.

Riddle No. 11: Can You Get These 3 Movie Stars Across the River?

Three movie stars, Chloe, Lexa, and Jon, are filming a movie in the Amazon. They’re very famous and very high-maintenance, so their agents are always with them. One day, after filming a scene deep in the rainforest, the three actors and their agents decide to head back to home base by foot. Suddenly, they come to a large river.

On the riverbank, they find a small rowboat, but it’s only big enough to hold two of them at one time. The catch? None of the agents are comfortable leaving their movie star with any other agents if they’re not there as well. They don’t trust that the other agents won’t try to poach their star.

For example, Chloe’s agent is okay if Chloe and Lexa are alone in the boat or on one of the riverbanks, but definitely not okay if Lexa’s agent is also with them. So how can they all get across the river?

There isn’t just one way to solve this problem.

Riddle No. 12: This Ludicrously Hard Riddle Is Our Tribute to a Late Math Genius. Can You Figure It Out?

On April 11, John Horton Conway , a brilliant mathematician who had an intense and playful love of puzzles and games, died of complications from COVID-19. Conway is the inventor of one of my favorite legendary problems (not for the faint of heart) and, famously, the Game of Life . I created this problem in his honor.

Carol was creating a family tree, but had trouble tracking down her mother’s birthdate. The only clue she found was a letter written from her grandfather to her grandmother on the day her mother was born. Unfortunately, some of the characters were smudged out, represented here with a “___” . (The length of the line does not reflect the number of smudged characters.)

“Dear Virginia,

Little did I know when I headed to work this Monday morning, that by evening we would have a beautiful baby girl. And on our wedding anniversary, no less! It makes me think back to that incredible weekend day, J___ 27th, 19___ , when we first shared our vow to create a family together, and, well, here we are! Happy eighth anniversary, my love.

Love, Edwin”

The question: When was Carol’s mother born?

This problem is inspired by Conway’s Doomsday Rule .

Riddle No. 13: To Solve This Twisty Math Riddle, You Just Need One Belt and One Earth

Imagine you have a very long belt. Well, extremely long, really … in fact, it’s just long enough that it can wrap snugly around the circumference of our entire planet. (For the sake of simplicity, let’s suppose Earth is perfectly round, with no mountains, oceans, or other barriers in the way of the belt.)

Naturally, you’re very proud of your belt. But then your brother, Peter, shows up—and to your disgruntlement, he produces a belt that’s just a bit longer than yours. He brags his belt is longer by exactly his height: 6 feet.

If Peter were also to wrap his belt around the circumference of Earth, how far above the surface could he suspend the belt if he pulled it tautly and uniformly?

Earth’s circumference is about 25,000 miles, or 130 million feet … but you don’t need to know that to solve this problem.

Riddle No. 14: This Elbow Tapping Riddle Is Diabolical. Good Luck Solving It.

In some future time, when the shelter-in-place bans are lifted, a married couple, Florian and Julia, head over to a bar to celebrate their newfound freedom.

They find four other couples there who had the same idea.

Eager for social contact, every person in the five couples enthusiastically taps elbows (the new handshake) with each person they haven’t yet met .

It actually turns out many of the people had known each other prior, so when Julia asks everyone how many elbows they each tapped, she remarkably gets nine different answers!

The question: How many elbows did Florian tap?

What nine answers did Julia hear?

Riddle No. 15: You’ll Need a Drink After Trying to Solve This Whisky Riddle

Alan and Claire live by the old Scottish saying, “Never have whisky without water, nor water without whisky!” So one day, when Alan has in front of him a glass of whisky, and Claire has in front of her a same-sized glass of water, Alan takes a spoonful of his whisky and puts it in Claire’s water. Claire stirs her whisky-tinted water, and then puts a spoonful of this mixture back into Alan’s whisky to make sure they have exactly the same amount to drink.

So: Is there more water in Alan’s whisky, or more whisky in Claire’s water? And does it matter how well Claire stirred?

The size of the spoon does not matter.

Riddle No. 16: The Doodle Problem Is a Lot Harder Than It Looks. Can You Solve It?

This week’s riddle is relatively simple—but sinister all the same.

The question: Can you make 100 by interspersing any number of pluses and minuses within the string of digits 9 8 7 6 5 4 3 2 1? You can’t change the order of the digits! So what’s the least number of pluses and minuses needed to make 100?

For instance, 98 - 7 - 6 + 54 - 32 shows one way of interspersing pluses and minuses, but since it equals 107, it’s not a solution.

I call this a “doodle problem”: one that’s best worked on during meetings where you might be doodling otherwise.

You might want to start looking for solutions that use a total of seven pluses and minuses (although there are ways to use fewer).

Ready for the solution? Click here to see if you’re right.

Riddle No. 17: This Math Puzzle Stumped Every Scientist but One. Think You Can Crack It?

Difficulty: hard.

In honor of Freeman Dyson, the renowned physicist who died last month , here’s a legendary tale demonstrating his quick wit and incredible brain power.

One day, in a gathering of top scientists, one of them wondered out loud whether there exists an integer that you could exactly double by moving its last digit to its front. For instance, 265 would satisfy this if 526 were its exact double—which it isn’t.

After apparently just five seconds , Dyson responded, “Of course there is, but the smallest such number has 18 digits.”

This left some of the smartest scientists in the world puzzling over how he could have figured this out so quickly.

So given Dyson’s hint, what is the smallest such number?

My second grader has recently learned how to add a 3-digit number to itself using the classic vertical method:

18-digit numbers, of course, can be added in the same way.

Riddle No. 18: Figure Out What’s on Her Forehead

Cecilia loves testing the logic of her very logical friends Jaya, Julian, and Levi, so she announces:

“I’ll write a positive number on each of your foreheads. None of the numbers are the same, and two of the numbers add up to the third.”

She scribbles the numbers on their heads, then turns to Jaya and asks her what her number is. Jaya sees Julian has 20 on his forehead, and Levi has 30 on his. She thinks for a moment and then says, “I don’t know what my number is.” Julian pipes in, “I also don’t know my number,” and then Levi exclaims, “Me neither!” Cecilia gleefully says, “I’ve finally stumped you guys!”

“Not so fast!” Jaya says. “Now I know my number!”

What is Jaya’s number?

Jaya could be one of two numbers, but only one of those numbers would lead to Julian and Levi both not knowing their numbers. Why?

Riddle No. 19: Can You Get Keanu Reeves Elected As President?

It’s 2024, and there are five candidates running in the democratic primary: Taylor Swift, Oprah Winfrey, Mark Cuban, Keanu Reeves, and Dwayne Johnson. (Hey, it could happen.) As usual, the first primary is in Iowa.

In an effort to overcome its embarrassment after the 2020 caucus debacle , the Iowa Democratic Party has just announced a new, foolproof way of finding the best candidate: there will be four consecutive elections.

First, candidate 1 will run against candidate 2. Next, the winner of that will run against candidate 3, then that winner will run against candidate 4, and finally the winner of that election will run against the final candidate. By the transitive property, the winner of this last election must be the best candidate ... so says the Iowa Democratic Party.

Candidate Keanu has been feeling pretty low, as he knows he is ranked near the bottom by most voters, and at the top by none. In fact, he knows the Iowa population is divided into five equal groups, and that their preferences are as follows:

Keanu is childhood friends with Bill S. Preston, Esq., the new head of the Iowa Democratic Party. Preston, confident that the order of the candidates doesn’t matter for the outcome, tells Keanu he can choose the voting order of the candidates.

So what order should Keanu choose?

How would Keanu fare in one-to-one races against each candidate?

Riddle No. 20: Who Opened All These Damn Lockers?

There are 100 lockers that line the main hallway of Chelm High School. Every night, the school principal makes sure all the lockers are closed so that there will be an orderly start to the next day. One day, 100 mischievous students decide that they will play a prank.

The students all meet before school starts and line up. The first student then walks down the hallway, and opens every locker. The next student follows by closing every other locker (starting at the second locker). Student 3 then goes to every third locker (starting with the third) and opens it if it’s closed, and closes it if it’s open. Student 4 follows by opening every fourth locker if it’s closed and closing it if it’s open. This goes on and on until Student 100 finally goes to the hundredth locker. When the principal arrives later in the morning, which lockers does she find open?

Make sure you pay attention to all of the factors.

Laura Feiveson is an economist for the government, a storyteller, and a lifelong enthusiast of math puzzles.  She lives in Washington, DC with her husband and two daughters. 

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22 Logic Puzzle Questions To Challenge Your Mind!

Public Events

Jane Ng • 31 Aug 2023 • 6 min read

Looking for Logic puzzle questions to challenge your logic skills without breaking a sweat? You’re in the right place! In this blog post, we’ll provide a list of 22 delightful logic puzzle questions that will make you think, and ponder as you find their right answers. So, gather ’round, get comfy, and let’s embark on a journey into the world of riddles and brain teasers!

Table Of Contents

Level #1 – easy logic puzzle questions.

• Level #2 – Logic Puzzle Questions In Math 

Level #3 – Logic Puzzle Questions For Adults

Key takeaways.

1/ Question: If an electric train is moving north at 100 mph and the wind is blowing to the west at 10 mph, which way does the smoke from the train go? Answer: Electric trains don’t produce smoke.

2/ Question: Three friends – Alex, Phil Dunphy, and Claire Pritchett – went to a movie. Alex sat next to Phil, but not next to Claire. Who sat next to Claire? Answer: Phil sat next to Claire.

3/ Question: There are six glasses in a row. The first three are filled with milk, and the next three are empty. Can you rearrange six glasses so that the full and empty glasses are in alternating order by moving only one glass?

Answer: Yes, pour milk from the second glass into the fifth glass.

4/ Question: A man stands on one side of a river, his dog on the other. A man calls his dog, who immediately traverses the river without getting wet. How did the dog do it? Answer: The river was frozen, so the dog walked across the ice.

5/ Question: Sara is twice as old as Mike. If Mike is 8 years old, how old is Sara? Answer: Sara is 16 years old.

6/ Question: Four people need to cross a rickety bridge at night. They have only one flashlight and the bridge can only hold two people at a time. The four people walk at different speeds: one can cross the bridge in 1 minute, another in 2 minutes, the third in 5 minutes, and the slowest in 10 minutes. When two people cross the bridge together, they must go at the slower person’s pace. The speed of two people crossing a bridge together is limited by the speed of the slower person. 

Answer: 17 minutes. First, the two fastest cross together (2 minutes). Then, the fastest returns with the flashlight (1 minute). The two slowest cross together (10 minutes). Finally, the second fastest returns with the flashlight (2 minutes).

Level #2 – Logic Puzzle Questions In Math 

7/ Question: A man gave one son 10 cents and another son was given 15 cents. What time is it? Answer: The time is 1:25 (a quarter past one).

8/ Question: If you multiply my age by 2, add 10, and then divide by 2, you’ll get my age. How old am I? Answer: You are 10 years old.

9/ Question: What is the weight of the three animals in the photo?

Answer: 27kg

10/ Question: If a snail climbs up a 10-foot pole during the day and then slips down 6 feet during the night, how many days will it take for the snail to reach the top?

Answer: 4 days. (On the first day, the snail climbs 10 feet during the day and then slips 6 feet during the night, leaving it at 4 feet. On the second day, it climbs another 10 feet, reaching 14 feet. On the third day, it climbs another 10 feet, reaching 24 feet. Finally, on the fourth day, it climbs the remaining 6 feet to reach the top.)

11/ Question: If you have 8 red balls, 5 blue balls, and 3 green balls in a bag, what is the probability of drawing a blue ball on the first try? Answer: The probability is 5/16. (There are a total of 8 + 5 + 3 = 16 balls. There are 5 blue balls, so the probability of drawing a blue ball is 5/16.)

12/ Question: A farmer has chickens and goats. There are 22 heads and 56 legs. What is the number of each animal that the farmer has? Answer: The farmer has 10 chickens and 12 goats.

13/ Question: How many times can you subtract 5 from 25? Answer : Once. (After subtracting 5 once, you’d be left with 20, and you can’t subtract 5 from 20 without going into negative numbers.)

14/ Question: What three positive numbers give the same answer when multiplied and added together? Answer: 1, 2, and 3. (1 * 2 * 3 = 6, and 1 + 2 + 3 = 6.)

15/ Question: If a pizza is cut into 8 slices and you eat 3, what percentage of the pizza have you consumed? Answer: You have consumed 37.5% of the pizza. (To calculate the percentage, divide the number of slices you’ve eaten by the total number of slices and multiply by 100: (3 / 8) * 100 = 37.5%.)

16/ Question: Which of the four pictures a, b, c, d, is the correct answer?

Answer: Picture b

17/ Question: If three people check into a hotel room that costs $30, they each contribute $10. Later, the hotel manager realized there was a mistake and the room should have cost $25. The manager gives $5 to the bellboy and asks him to return it to the guests. The bellboy, however, keeps $2 and gives each guest $1. Now, each guest has paid $9 (totaling $27) and the bellboy has $2, which makes $29. What became of the $1 that was missing?

Answer: The missing dollar riddle is a trick question. The $27 that the guests paid includes the $25 for the room and the $2 that the bellboy kept.

18/ Question: A man is pushing his car along a road when he comes to a hotel. He shouts, “I’m bankrupt!” Why? Answer: He’s playing a game of Monopoly.

19/ Question: If a man buys a shirt for $20 and sells it for $25, is this a 25% profit?

Answer: No. (The cost price of the shirt is $20, and the selling price is $25. The profit is $25 – $20 = $5. To calculate the profit percentage, you divide the profit by the cost price and then multiply by 100: (5 / 20) * 100 = 25%. The profit percentage is 25%, not the profit amount.)

20/ Question: If a car’s speed increases from 30 mph to 60 mph, how much does the speed increase in terms of a percentage? Answer: The speed increases by 100%.

21/ Question: If you have a rectangular garden that is 4 feet long and 5 feet wide, what is the perimeter? Answer: The perimeter is 18 feet. (The formula for the perimeter of a rectangle is P = 2 * (length + width). In this case, P = 2 * (4 + 5) = 2 * 9 = 18 feet.)

22/ Question: If two hours ago, it was as long after one o’clock as it was before one o’clock, what time is it now? Answer: It’s 2 o’clock.

In the world of logic puzzles, every twist and turn unveils a new challenge for our minds to conquer. To elevate your puzzle experience and add an interactive touch, check out AhaSlide’s features . With AhaSlides, you can turn these puzzles into shared adventures, sparking friendly competitions and lively discussions. Ready to dive in? Visit our templates and bring an extra layer of fun to your logic puzzle journey!

What is an example of a logic puzzle?

Example of a Logic Puzzle: If two hours ago, it was as long after one o’clock as it was before one o’clock, what time is it now? Answer: It’s 2 o’clock.

Where can I find logic puzzles?

You can find logic puzzles in books, puzzle magazines, online puzzle websites, mobile apps, and AhaSlides dedicated to puzzles and brain teasers.

What is a logic puzzle meaning?

A logic puzzle is a type of game or activity that challenges your reasoning and problem-solving skills. It involves using logical deductions to analyze given information and arrive at a correct solution.

Ref: Parade | Buzzfeed  

A writer who wants to create practical and valuable content for the audience

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If you have two coins which total 35 cents and one of the coins is not a dim, i am a 5 letter word take away the first letter and i am a place's name, open me, and you can me without a mirror riddle, redo what has been undone, most feathers, what only works the first time you use it, bus stop riddle, what's 3/7 chicken, 2/3 cat, and 2/4 goat, number of chairs, i can hold you prisoner, the wise daughter riddle, if you see me, i see you. if you move, then i'll move too, search riddles, follow riddles, share riddles.

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Puzzles Questions

What are puzzles.

Puzzle in simple terms is defined as a problem designed to test ingenuity or knowledge. They have become an integral part of few competitive exams and entrance tests. They are devised with intent to test the knowledge of to-be-solver.

What are different types of puzzles?

There are different types, which are devised with a specific intent to test a person’s ability to interpret and solve the problem. Different type of puzzles are :

• Missing letter

What exams have puzzles?

Almost every competitive exams have puzzles. They are most commonly found in competitive exams like : CAT, MAT, XAT, Bank P.O.s, AIEEE, GATE, TOEFL, GRE, and GATE etc. In these exams, mostly arithmetic, math, number, and logic puzzles.

How to solve puzzles?

To solve, one needs to interpret the questions properly and understand the sequence in the problem Is designed. By understanding the sequence, it becomes easier to solve a problem. Understanding the sequence of a puzzle requires strong logical ability and a creative thought pattern. The key is to solve as many different puzzles as possible to improve the thought process and gain expertise over different ways of solving a problem.

Clock puzzles

Logic puzzles, math puzzles, missing letters puzzles, number puzzles, word puzzles.

How many times in a day, are the hands of a clock in straight line but opposite in direction?

The Hardest Logic Puzzle Ever?

If a giraffe has two eyes, a monkey has two eyes, and an elephant has two eyes, how many eyes do we have?

Here in the question, it is asked how many Eyes We have so that means here the person who has asked the question is also including the person who is suppose to give the answer. In a clear understanding, the Conversation is happening between 2 people 1st who asked the question and 2nd to whom it has been asked, which means there are 4 eyes.

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Crack the code & Unlock the Key ?

From all the hints given, 

only 042 satisfies and it unlocks the key.

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Find the missing Number?

7*6 = 4 2 9*9 = 8 1 5*3 = 1 5 6*2 = 1 2

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The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours. (Because between 5 and 7 they point in opposite directions at 6 o'clcok only).

So, in a day, the hands point in the opposite directions 22 times.

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Solve the Logical Puzzle ?

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How many squares do you see?

Number of squares in the given figure is

16 + 9 + 19 + 1 = 45.

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A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:

Angle traced by hour hand in 12 hrs = 360º.

Angle traced by hour hand in 5 hrs 10 min.   i.e., 31/6 hrs  =  360 12 * 31 6 ° = 155º

90 D in a R A

90 D in a R A => 90 degrees in a Right Angle.  

This is similar to 

26 L of the A =  26 Letters of the Alphabet

12 S of the Z .

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Critical thinking puzzles for adults (with answers)

Critical thinking can help to better navigate the information-dense and complex world we live in. By thinking critically we can better identify priorities, take a sensible approach to problem-solving and reach conclusions logically in line with evidence. Puzzles are an excellent way both to learn and practice critical thinking skills.

If you’d like to learn more about critical thinking or simply practice your skills with some puzzles, then this is the article for you. Read a little bit more about critical thinking skills and how to apply them first, or just skip straight to the puzzles and see how you get on.

What is critical thinking?

Critical thinking is a broad approach to problem solving and analysis based on logic and evidence. It brings together a wide range of intellectual competences and the ability to combine and cross-reference them. Some of the most important elements of a critical thinking approach include:

Analytical skills:

• understanding of questions and concepts
• differentiation of relevant / irrelevant evidence and information
• identification of similarities, connections and differences
• use of metaphors or analogies to communicate ideas

Powers of inference:

• extraction of meaning from data using inductive or deductive reasoning
• extrapolation of data or abstraction into concepts and patterns
• correct identification and deployment of analogies and assumptions
• grasp of causal relationships, allowing development of conclusions and theories.

Data and theory evaluation:

• assessment of how strong, important or credible a theory might be
• taking on board new data and new arguments which alter understanding of ideas and theory

Rational decision-making:

– application of all the skills and competences above in order to come to a rational conclusion.

Problem-solving attitude: In addition to being able to think critically, you must also be personally inclined to think critically when facing a difficult or complex challenge. Developing qualities including curiosity and fairness, while distancing yourself from ideologies and group-think, should all help to create the kind of psychological landscape where critical thinking can flourish.

How can I learn critical thinking?

Critical thinking skills are hard to develop from only reading books or listening to lectures. The most effective way to sharpen and deepen critical thinking faculties is to practice critical thinking . Critical thinking puzzles offer a fun way to learn and the eight critical thinking puzzles we’ve chosen for this article should help you make a good start.

The aMAZEing PuzzleBox

Level 7 sequential discovery puzzle box​

Made from original LEGO® bricks​

Find the  GOLDEN BAR  to complete the challenge

CAN YOU HANDLE IT?..

Eight critical thinking puzzles – with answers

Puzzle 1 – letter puzzles.

What common feature do the following words share?

Answer: All of these words begin with a vowel. This type of puzzle may send your mind off in the wrong direction, thinking about the objects or concepts described by the words, and the properties they might share. In fact, the solution lies in a far more simple consideration of the alphabet. Puzzle 1 is a simple example of a common type of letter or word puzzle.

Puzzle 2 – Commonalities and differences

What do the following items have in common and which is the odd one out?

Orange Juice

Answer: These items are all liquids and the odd one out is petrol, since all the others are drinkable liquids.

Puzzle 3 – Falling on his feet

A man who lives in a high-rise building decides to exit through the window one morning rather than using the door. Somehow he survives the fall without a scratch and walks away to work. How did this happen?

Answer: The man lived on the ground or first floor and merely stepped or jumped down to the pavement outside. By stating early on that the building in question was a high-rise building, it’s easy for someone reading quickly to assume that the man jumped from a window on a high store but this it s not necessarily the case.

Puzzle 4 – Walk this way

A group of five people enter a windowless meeting room together. An hour later when the meeting ends, four walk out of the door, leaving the room empty. What has happened to the fifth member of the group?

Answer: The fifth person was in a wheelchair and wheeled out of the room rather than walked. Solving this puzzle requires you to think laterally about the question and the possible solutions. The answer can be found by asking yourself whether the emphasis of the question is on the emptiness of the room or the means by which the other four people left.

Puzzle 5 – Shapes and symbols

When lying on my side, I am everything, but when cut in half, I am nothing. What am I?

Answer: The number 8. This puzzle requires that you think about a shape being repositioned or cut in a way that can change it to “everything” or “nothing”. Number 8 on its side is the mathematical symbol for infinity (i.e. everything) and also shaped like two small number 0s put together.

Puzzle 6 – Three hard options

The hero is escaping the lair of an evil super-villain and is faced with three possible exits:

• Door A leads into a pit of bubbling lava
• Door B leads to a room housing a deadly hitman
• Door C leads to the den full of lions that haven’t had a meal for a year.

Which door should the hero choose?

Answer: Door C. If the lion hasn’t eaten in a year, it will definitely be dead by now. This type of puzzle requires you to consider the full implications of the information given, rather than being drawn into a comparison of the relative dangers of lava, hitmen and lions…

Puzzle 7 – The bus driver’s eyes

You are a bus driver. Today the bus is empty at the start of your route but at the first stop, four people get onto the bus. Eight people get on at the second stop, while three alight. When the bus reaches the third stop, one more gets off, and three get on.

At the fourth stop, two people get off the bus and one gets on. The bus is traveling at an average speed of 30mph and its tires are new.  What color are the bus driver’s eyes?

Answer: You are the bus driver so the color will be the color of your own eyes. This type of puzzle tries to confuse you and obscure the single piece of relevant information by presenting large quantities of irrelevant information.

Puzzle 8 – Losing weight

A man walks into a room, closes the doors behind him and presses a button. In a matter of seconds the man is 20lb lighter. Despite this, he leaves the room at the same weight he entered it.

Answer: The room in question is actually an elevator. When the man gets in and presses the button, the elevator moves downwards with an acceleration that reduces the effect of gravity and makes the man temporarily 20lb lighter. Once the lift stops moving, the man’s weight is subject to normal gravity, just the same as before. Solving this puzzle requires a small piece of general physics knowledge.

A final word…

We hope you’ve enjoyed our critical thinking puzzles for adults and that your critical thinking skills are feeling refreshed and sharpened after reading our article. Whether at school, in the workplace, or in general life, critical thinking can be a valuable tool for success and anyone can learn to use it.

Get more critical thinking puzzles on our Youtube channel:

20 Challenging Lateral Thinking Puzzles That Are Harder Than They Seem

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45 Fun and Clever Brain Teasers for Kids with Answers!

Written by Laney Kennedy

Reviewed by Sarah Tino, M.Ed.

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• Game-Based Learning
• What brain teasers are
• The benefits of brain teasers for kids

Math brain teasers for kids

Sometimes keeping your students engaged during a (long) school day feels like a losing battle. How do you gain their full attention while teaching the skills they need to succeed? How do you turn tough and intimidating concepts into fun, entertaining lessons that actually spark life in the classroom? 

Brain teasers for kids are a great form of game-based learning that not only entertain children but also inspire some creative thought in the classroom. People of all ages can indulge in these playful — yet challenging — activities.

And some examples of when teachers might want to use brain teasers are on a bulletin board in the classroom, as a partnered activity to start a new concept or lesson, or during a rainy day indoor recess box.

We’ve gathered 45 examples of brain teasers for kids with answers, organized by category:

Table of Contents

Language brain teasers for kids :

Riddles ; Language associations ; Lateral thinking problems.

Math brain teasers for kids :

Math riddles ;  Pattern problems ;  Prodigy.

Visual brain teasers for kids :

Spot the difference ;  Rebus puzzles ;  Optical illusions ;  Stroop effect test.

Use the list below to find the perfect brain teaser for your class!

What are brain teasers?

Before you explore our examples, you might be wondering what brain teasers actually are.

Cambridge Dictionary defines a brain teaser as “a problem for which it is hard to find the answer, especially one which people enjoy trying to solve as a game.”

Brain teasers are a type of puzzle — and as the list below reveals, they come in many different forms. Often presented as a riddle, question or activity, brain teasers require a little extra brainpower to solve.

It's important to note that if you have any English language learners in your class, brain teasers for kids might pose a challenge for them. If that's the case, they might need you to walk them through the brain teaser more closely, or you can find ones that better suit their language level.

Brain teasers for kids differ from other complex or abstract problems because they’re usually done for fun. Although you can use them to analyze problem-solving and critical thinking skills, they’re often used as an amusing activity to encourage logical and lateral thinking , or thinking “outside the box.”

45 Brain teasers for kids

We’ve compiled a list of language, math and visual brain teasers to get your students thinking. Get inspired by the examples below — including answers!

Language brain teasers for kids

When you hear the term “brain teaser,” a riddle is likely the first thing that comes to mind. Riddles are perplexing — sometimes misleading — questions or statements that require creative thought to solve.

Riddles are usually fun, and plenty of them can add some humour to your classroom.

Enjoy our list of riddles for kids below!

a) Billy’s mother had five children. The first was named Lala, the second was named Lele, the third was named Lili, the fourth was named Lolo. What was the fifth child named?

b) Choose the correct sentence: “The yolk of the egg is white” or “the yolk of the egg is white.”

c) It’s as light as a feather, but the strongest person can’t hold it for more than five minutes. What is it?

d) The more there is, the less you see. What is it?

e) What gets more wet while it dries?

f) You can find it in Mercury, Earth, Mars, Jupiter and Saturn, but not in Venus or Neptune. What is it?

g) It likes food, but water kills it. What is it?

h) What’s full of holes but can still hold water?

i) Which is heavier, a pound of feathers or a pound of rocks?

j) How far can a dog run into the woods?

k) You’re driving a city bus. At the first stop, three women get on. At the second stop, one woman gets off and a man gets on. At the third stop, two children get on. The bus is blue and it’s raining outside in December. What colour is the bus driver’s hair?

l) There are three houses. One is red, one is blue and one is white. If the red house is to the left of the house in the middle, and the blue house is to the right of the house in the middle, where’s the white house?

m) It’s at the center of gravity and you can find it in Venus, but not Mars. What is it?

n) What goes on four feet in the morning, two in the afternoon and three in the evening?  (This is from the classic myth,  Oedipus and the Riddle of the Sphinx )

o) What travels faster: heat or cold?

p) A man was walking in the rain in the middle of nowhere without a coat or an umbrella. He got soaked, but not a single hair on his head was wet. How can this be?

q) A cowboy rode into town on Friday. He stayed in town for three days and rode back out on Friday. How is this possible?

b) Neither. Egg yolks are yellow, not white!

f) The letter “R”

h) A sponge

i) Neither. Both weigh a pound!

j) Halfway. Once it reaches halfway, it’s running  out  of the woods.

k) Whatever colour your hair is. Remember, you’re driving the bus!

l) In Washington, D.C.

m) The letter “V”

n) A human. The times of day represent stages of human life. At the beginning of life, a baby crawls on four “feet.” As a person gets older, they walk on two feet. Later in life, a person will walk on three “feet” (two feet, plus a cane to help them walk).

o) Heat travels faster because you can catch a cold!

p) He was bald.

q) The horse’s name was Friday.

As a bonus, use these riddles to challenge preconceived notions and get students thinking about natural bias .

a) Two boxers are in a match scheduled for 12 rounds. (Pure boxing only - no kicking, UFC takedowns, or anything else). One of the boxers gets knocked out after only six rounds, yet no man throws a punch. How is this possible?

b) A father and son have a car accident and both are very injured. They are taken to separate hospitals for treatment. When the boy is taken in for an operation, the surgeon says, “I can’t do this surgery…. this boy is my son!” How is this possible?

a) The two boxers are women.

b) The surgeon is the boy’s mother.

2. Language associations

These brain teasers for kids explore the complexities of the English language. Use them to boost student knowledge of sounds, words, spelling, categorization and more.a)  Word association : find a word that associates with the following sets of words.

• Cake, swiss, cottage
• Glasses, screen, day
• Cream, cube, cap
• Knife, fly, cup

b) Find the mystery word . Replace the third letter of each word with a new letter to create a different word. When read vertically, the new letters will reveal the mystery word.

For example, the word MA K E could become MA R E, MA L E, MA T E and so on. It’s your job to figure out which one works to create the mystery word. 

Hint: It’s something you’ll find outside.

c) Find rhyming pairs . Unscramble the words below so that each pair of words rhymes.

• RBAE & HREAS
• WNROED & UTRHNDE
• TUGHAT & HBTUGO
• ODULC & ODOG

Mystery word: FLOWER

• BEAR (or BARE) & SHARE
• WONDER & THUNDER
• TAUGHT & BOUGHT
• COULD & GOOD

You can also use printable brain teasers for kids like this one:

Image source: Spelling Words Well

Answer: The “happy word” is SMILE.

3. Lateral thinking problems

Lateral thinking problems require creative thinking with an indirect approach.

These questions require logic and careful thought to solve. The most notable example of a lateral thinking problem is the classic Monty Hall problem .

Here are two examples of lateral thinking problems kids can try to solve.

a) The river crossing problem

Image source: Popular Mechanics

A farmer is travelling with a fox, a goose, and a bag of beans. During his journey, he comes across a river with a boat to cross it.

The farmer can only fit one thing in the boat with him at a time. If left alone together, the fox will eat the goose or the goose will eat the beans. How does the farmer get everything across the river safely?

b) The light bulb problem

There are three light switches outside of a room-- labeled number one, number two, and number three. The door to the room is closed and you can’t see in. All three switches are off.

You need to figure out which switch belongs to which bulb. You can use the switches however you want to, but can only enter the room once. How do you do it?

a) Here’s the step-by-step solution:

• The farmer brings the goose across the river first (if he leaves the goose alone, it will either eat the beans or be eaten by the fox).
• The farmer brings either the fox or the beans across and leaves the other one alone.
• Now the farmer has two items on the other side of the river, including the goose. If he leaves the goose again, the same problem will occur. So, the farmer must bring the goose back to the other side.
• The farmer brings the other item back (either the fox or the beans) and leaves the goose alone again. The fox and the beans are now on the other side of the river.
• The farmer returns and brings the goose across the river again.

b) Turn on the first switch and leave it on. Turn on the second switch for a few minutes, and then turn it off again. When you enter the room, one light bulb will be on. You’ll know it goes with switch one because you turned it on. Another bulb will be hot. You’ll know that goes with switch two because it was on for a little while. The bulb that’s off and cold goes with switch three because you didn’t touch it.

Like math puzzles , these brain teasers for kids can increase engagement with math content and inspire your students to work on math concepts and problems outside of regular lessons.

1. Math riddles

These riddles are just as amusing as the ones above, but they’re math-focused . Use them to give students some extra math practice and encourage resourceful thinking.

Math riddles

a) Divide 30 by ½ and add 10. What’s the answer?

b) A clerk at the butcher shop is six feet tall and wears size 10 shoes. What does he weigh?

c) A farmer has 19 sheep on his land. One day, a big storm hits and all but seven run away. How many sheep does the farmer have left?

d) Your sock drawer only contains 18 white socks and 18 blue socks. How many times do you need to reach inside the drawer and take out a sock to guarantee a matching pair?

e) You planted sunflower seeds in your back garden. Every day, the number of flowers doubles. If it takes 52 days for the flowers to fill the garden, how many days would it take for them to fill half the garden?

f) Using only addition, how can you use eight eights to get the number 1,000?

g) When Ashley was 15, her mother was 37. Now, her mother is twice her age. How old is Ashley?

a) It's 70. You’re dividing 30 by ½, not by two. Thirty divided by ½ is the same thing as multiplying it by two, which is 60. Plus 10 makes 70!

b) Meat. He works at the butcher shop, so he weighs meat for a living.

c) Seven. The riddle says  all but seven  run away, meaning there are seven left who didn’t.

d) Three times. On the third time, you’ll get either a white or a blue sock to match with one of the other two you’ve already grabbed.

e) It would take 51 days. If the number of flowers doubles every day, half the garden would be full the day before, on the 51st day.

f) 888 +88 +8 +8 +8

g) Ashley is 22. Her mother is 22 years older, so when Ashley is 22, she’s now half her mother’s age.

2. Pattern problems

These questions require students to identify a pattern before they can answer a particular question. Kids must use creative and logical thinking to find the answers.

4 + 4 = 168

5 + 5 = 2510.

b) What makes this number unique: 8,549,176,320?

c) Solve the pattern puzzle below. Find the missing number to replace the question mark.

Image source: Genius Puzzles

d) Solve the following:

Image source: AOL

a) The missing number is 3612. The answer is the number multiplied by itself and then the number added to itself. Six multiplied by six is 36, and six plus six is 12.

b) It contains each one-digit number, zero through nine, listed in alphabetical order.

c) The missing number is 17. Each number in the circle is the sum of the numbers in the opposite quadrant. In this case, the numbers are eight and nine — added together makes 17.

d) The answer is 14 (or 16), if you’re on the other side of the debate .

3. Prodigy Math Game

This math activity is a bit different from others on the list. It’s not a traditional brain teaser, but it can also be used as a fun, skill-building alternative to traditional math class.

Prodigy is a game-based learning platform that takes your students on an online fantasy adventure while they answer standards-aligned math questions. It’s engaging and effective at teaching necessary skills. 

Prodigy's free teacher tools help you differentiate learning, send assessments in-game and even collect student insights!

Visual brain teasers for kids

1. spot the difference.

This ever-popular activity might remind you of your own childhood — and kids still love it! Spot the difference puzzles require lots of deduction and attention to detail.

Here’s an example of a printable spot the difference activity.

Image source: Tim’s Printables

2. Rebus puzzles

A rebus is a visual word puzzle that uses lateral thinking to find its intended meaning. The word or phrase is depicted with a visual illustration, including letters and words. Students must think creatively to figure out the meaning from the clues they’re given. 

Image source: Wikipedia

Image source: Stack Exchange

a) Top secret

b) Think outside the box

Visit the link below if you want more fun rebus puzzles for your students:

3. Optical illusions

Get tricky with your students! Optical illusions use visual tricks that alter the perception of what you’re really seeing. Students will love trying to figure out what’s really going on in these examples.

a) How many legs does the elephant have?

Image source: Optics For Kids

b) Are the two squares different colours?

Image source: Brain Den

b) They’re exactly the same colour. If you place your finger over the spot where the squares meet, you can see they’re the same. Try this impossible paper puzzle if you want a more hands-on optical illusion. You can make one to show your class, then have students make their own as a fun brain teaser to show friends and family.

4. Stroop effect test

The Stroop effect was discovered in the 1930s by John Ridley Stroop. During the test, you’re given a list of colour names, with each word being a different colour than what they describe.

The test involves saying the colour of a word, rather than reading the word itself. Your mind must process the two conflicting pieces of information, which slows down reaction speed and requires careful thought to get through.

Image source: The Crafty Classroom

Benefits of brain teasers for kids

You know your students enjoy them, but did you know there are plenty of additional reasons to make brain teasers a regular activity in the classroom?

A study on the attention spans of six-year-olds found children who were given brain teasers were more attentive than those who were not — showing brain teasers were effective at boosting children’s attention spans.   

Brain teasers for kids can also:

• Strengthen problem solving and critical thinking skills
• Encourage lateral thinking and build new perspectives
• Improve cognitive abilities like memory and processing speed
• Inspire teamwork and communication
• Engage students and motivate them to learn
• Provide necessary breaks from traditional class work

How to use brain teasers in the classroom

In addition to their many learning advantages, brain teasers are a great way to break up the day and engage your students. Here are just a few ways you can use brain teasers for kids as a teaching strategy and maximize the benefits in your classroom:

• Engagement-boosting activity before or after lessons
• Bonus questions in assignments and tests
• Optional “free time” activity
• Encourage team building — split students into groups to solve them together
• Supplement lessons — choose brain teasers about the subject you’re teaching

Final thoughts on brain teasers for kids

No matter what subject or skill you want to focus on, a brain teaser is a great addition to traditional teaching methods. Plus, it’s something students will actually be excited to do.

Remember that brain teaser are designed to be fun for kids. it’s not about finding the right answer, but the mental exercise they get from trying to find the solution.

Use any of the brain teasers in this list whenever you need a boost of energy in your classroom. Bonus points if you can stump any adults!

Create or log in to your free teacher account on Prodigy – a game-based learning platform for math that’s easy to use for educators and students alike. Aligned with standards across the English-speaking world, it’s used by more than a million teachers and 90 million students.

The New York Times

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A Quick Puzzle to Test Your Problem Solving

By DAVID LEONHARDT and YOU JULY 2, 2015

A short game sheds light on government policy, corporate America and why no one likes to be wrong. Related Article

Here’s how it works:

We’ve chosen a rule that some sequences of three numbers obey — and some do not. Your job is to guess what the rule is.

We’ll start by telling you that the sequence 2, 4, 8 obeys the rule:

Obeys the rule

Now it’s your turn. Enter a number sequence in the boxes below, and we’ll tell you whether it satisfies the rule or not. You can test as many sequences as you want.

Enter your first sequence here:

I don't want to play; just tell me the answer.

Guess wrong

The answer was extremely basic. The rule was simply: Each number must be larger than the one before it. 5, 10, 20 satisfies the rule, as does 1, 2, 3 and -17, 14.6, 845. Children in kindergarten can understand this rule.

But most people start off with the incorrect assumption that if we’re asking them to solve a problem, it must be a somewhat tricky problem. They come up with a theory for what the answer is, like: Each number is double the previous number. And then they make a classic psychological mistake.

They don’t want to hear the answer “no.” In fact, it may not occur to them to ask a question that may yield a no.

Remarkably, 80 percent of people who have played this game so far have guessed the answer without first hearing a single no. A mere 7 percent heard at least three nos — even though there is no penalty or cost for being told no, save the small disappointment that every human being feels when hearing “no.”

It’s a lot more pleasant to hear “yes.” That, in a nutshell, is why so many people struggle with this problem.

Confirmation Bias

This disappointment is a version of what psychologists and economists call confirmation bias. Not only are people more likely to believe information that fits their pre-existing beliefs, but they’re also more likely to go looking for such information. This experiment is a version of one that the English psychologist Peter Cathcart Wason used in a seminal 1960 paper on confirmation bias. (He used the even simpler 2, 4 and 6, rather than our 2, 4 and 8.)

Most of us can quickly come up with other forms of confirmation bias — and yet the examples we prefer tend to be, themselves, examples of confirmation bias. If you’re politically liberal, maybe you’re thinking of the way that many conservatives ignore strong evidence of global warming and its consequences and instead glom onto weaker contrary evidence. Liberals are less likely to recall the many incorrect predictions over the decades, often strident and often from the left, that population growth would create widespread food shortages. It hasn’t.

This puzzle exposes a particular kind of confirmation bias that bedevils companies, governments and people every day: the internal yes-man (and yes-woman) tendency. We’re much more likely to think about positive situations than negative ones, about why something might go right than wrong and about questions to which the answer is yes, not no.

Sometimes, the reluctance to think negatively has nothing to do with political views or with a conscious fear of being told no. Often, people never even think about asking questions that would produce a negative answer when trying to solve a problem — like this one. They instead restrict the universe of possible questions to those that might potentially yield a “yes.”

Government Policy

In this exercise, the overwhelming majority of readers gravitated toward confirming their theory rather than trying to disprove it. A version of this same problem compromised the Obama administration’s and Federal Reserve’s (mostly successful) response to the financial crisis. They were too eager to find “green shoots” of economic recovery that would suggest that the answer to the big question in their minds was, just as they hoped and believed: “Yes, the crisis response is aggressive enough, and it’s working.” More damaging was the approach that President George W. Bush’s administration, and others, took toward trying to determine whether Iraq had weapons of mass destruction a decade ago — and how the Iraqi people would react to an invasion. Vice President Dick Cheney predicted in 2003, “We will, in fact, be greeted as liberators.”

Corporate America

Corporate America is full of more examples. Executives of Detroit’s Big Three didn’t spend enough time brainstorming in the 1970s and 1980s about how their theory of the car market might be wrong. Wall Street and the Fed made the same mistake during the dot-com and housing bubbles. To pick an example close to home, newspapers didn’t spend enough time challenging the assumption that classified advertisements would remain plentiful for decades.

One of the best-selling business books in history — about negotiation strategy — is “Getting to Yes.” But the more important advice for us may instead be to go out of our way to get to no. When you want to test a theory, don’t just look for examples that prove it. When you’re considering a plan, think in detail about how it might go wrong.

Some businesses have made this approach a formal part of their decision-making: Imagine our strategy has failed; what are the most likely reasons it did? As Jason Zweig has written in The Wall Street Journal, “Gary Klein, a psychologist at Applied Research Associates, of Albuquerque, N.M., recommends imagining that you have looked into a crystal ball and have seen that your investment has gone bust.”

When you seek to disprove your idea, you sometimes end up proving it — and other times you can save yourself from making a big mistake. But you need to start by being willing to hear no. And even if you think that you are right, you need to make sure you’re asking questions that might actually produce an answer of no. If you still need to work on this trait, don’t worry: You’re only human.

Guess right

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The Path to Better Thinking Through Puzzles and Riddles

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The following is a guest post from A.J. Jacobs ( @ajjacobs ), a bestselling author, journalist, and human guinea pig. It is excerpted from his new book The Puzzler: One Man’s Quest to Solve the Most Baffling Puzzles Ever, from Crosswords to Jigsaws to the Meaning of Life . A.J. has written four New York Times bestsellers, including The Year of Living Biblically (for which he followed all the rules of the Bible as literally as possible) and Thanks a Thousand (for which he went around the world and thanked every person who had even the smallest role in making his morning cup of coffee possible). He has given four TED talks with a combined 10M+ views. He contributes to NPR and The New York Times and wrote the article “My Outsourced Life,” which was featured in The 4-Hour Workweek . He was once the answer to one down in The New York Times crossword puzzle.  You can find my interview from 2016 with A.J here , and you can find last week’s interview with A.J. here . Please enjoy!

My father was the one to introduce me to math puzzles.

He didn’t focus on the traditional kind. His were weirder than that, more homegrown. My dad’s greatest joy comes from baffling unsuspecting people—strangers, friends, family, whomever—and he often accomplishes this with math-based hijinks.

One time, when I was about eight years old, I asked my dad how fast race cars went. This was before Google, so my father was my version of a search engine.

“The fastest ones get up to about 50 million,” my dad said.

Even to my unschooled mind, 50 million miles per hour seemed off.

“That doesn’t sound right,” I said.

“Yes it is,” he said. “50 million fathoms per fortnight.”

I just stared at him.

“Oh, you wanted miles per hour ?” my dad said. “I thought you meant in fathoms per fortnight.”

As you might know, a fathom equals six feet, and a fortnight is two weeks. My dad had decided that fathoms per fortnight would be his default way to measure speed, on the probably correct theory that no one else on earth had ever used that metric. I thanked him for this helpful information.

So, as you can see, I was exposed to recreational math early on, leaving me with a mixed legacy—a love of numbers, a healthy skepticism about numbers, and paranoia.

For this puzzle project, I’ve bought a dozen books with math and logic brainteasers. Reading these books often induces a mild panic. How would I know how many spheres can simultaneously touch a center sphere? I can’t even figure out where to start. What’s the entry point?

To remedy this problem, I decided to consult one of the world’s experts on math puzzles, hoping to learn some of her methods. Tanya Khovanova greets me on a video call. But before I’m allowed to ask her anything, she has a question for me .

“I have two coins,” she says, in a Russian accent. “Together they add up to 15 cents. One of them is not a nickel. What are the two coins?”

My palms begin to sweat. I did not expect a pop quiz.

Maybe she’s talking about foreign coins? Maybe rubles are involved, I say?

“Not foreign coins,” she says. “American currency.”

I employ one of the puzzle-solving strategies that I do know: Look closely at all of the words and see if you have fallen for any hidden assumptions.

Two coins. Add up to 15. One of them is not a nickel.

That last phrase is kind of ambiguous. She didn’t say “neither of them are nickels.” So . . . what if one is not a nickel, but the other one is?

“A dime and a nickel?” I say, tentatively. “Because the other one is a nickel?”

“Okay. You passed the test. So you can continue,” she says, smiling.

This is a relief. Because Tanya is a fascinating character. She is a Russian émigré who is now a lecturer at MIT. She writes a popular blog about the world’s twistiest math and logic puzzles (it’s called simply Tanya Khovanova’s Math Blog ). And she has cracked pretty much every great math puzzle ever created. We’re talking coin puzzles, matchstick-arranging puzzles, river-crossing puzzles, math equation puzzles.

Tanya is on a mission. “I am very upset at the world,” she says. “There is so much faulty thinking, and puzzles can help us think better.”

Consider probability, she says. We are terrible at thinking probabilistically, and puzzles about odds can help us learn. They could teach us, for instance, the folly of playing the lottery. “The situation is unethical. I think that lottery organizers should spend part of the money they make on lotteries to educate people not to play the lottery.”

Tanya has been fascinated with math since her childhood in Moscow.

“The first thing that I remember, it wasn’t a puzzle, it was an idea. I remember that I was five years old and we were on a vacation in a village, and I was trying to go to sleep and I was thinking after each number there is the next number, and then there is the next number. At some point, I realized that there should be an infinity of numbers. And I had this feeling like I’m touching infinity, I’m touching the universe, just a euphoric feeling.”

Being a female Jewish math genius in 1970s Soviet Russia was not easy. She faced sexism and anti-Semitism. Tanya says the test for the prestigious Moscow State University—the Soviet equivalent of MIT—was rigged against Jews. Jewish students were given a separate and more difficult test. The problems were called “coffin problems,” which translates to “killer problems.” Tanya studied with other Jewish students and managed to pass the unfair test.

In 1990, Tanya left Russia. She moved to the United States and married a longtime American friend. She worked for a defense contractor near Boston but hated it because “I thought it destroyed my karma.” She started teaching as a volunteer at MIT before they hired her as a full-time lecturer.

Her philosophy: puzzles should be used more often in teaching math. First of all, they entertain us while teaching us how to think rigorously. And second, puzzles can lead to genuine advances in mathematics—topics such as conditional probability and topology were originally explored in puzzle form.

Math Puzzles 1.0

The very first math puzzles—at least according to some scholars—date back to Egypt’s Rhind Papyrus, about 1500 B.C.E. They’re closer to problems than puzzles, since they don’t require much ingenuity. But the unnamed author did try to spice them up with some whimsical details, such as in Problem 79.

Problem 79. There are seven houses. In each house there are seven cats. Each cat kills seven mice. Each mouse has eaten seven grains of barley. Each grain would have produced seven hekat (a unit of measurement). What is the sum of all the enumerated things?

Arguably the first book with actual twisty and turny math puzzles came several centuries later. The ninth century Holy Roman Emperor Charlemagne was a puzzle addict, and he hired a British scholar named Alcuin of York to be his official puzzlemaker. Alcuin’s book Problems to Sharpen the Young introduced, among other things, the first known river-crossing problem. Here it is:

A man has to transport a wolf, a goat, and a bunch of cabbages across a river. His boat could take only two of these at a time. How can he do this without leaving the wolf alone with the goat (as he might eat it) or the goat alone with the cabbages (as it might eat them)?

For river-crossing problems, you need to realize that you must take a counterintuitive step backward before continuing forward. You must think outside the box.

Way Outside the Box

Tanya reminds me that “thinking outside of the box” wasn’t always a cliché. The origin of the phrase is an actual puzzle: Connect all the dots in this diagram using just four straight lines:

The answer:

Nowadays the phrase is overused and is often a punchline, as in the cartoon of the cat thinking outside its litter box. But it’s still an important concept: to find a solution, you often have to break expectations.

“My students have taught me as much as I have taught them about this,” she says.

“How do you mean?” I ask.

She tells me to think about this puzzle: “You have a basket containing five apples. You have five hungry friends. You give each of your friends one apple. After the distribution, each of your friends has one apple, yet there is an apple remaining in the basket. How can that be?”

The traditional answer is: you give four friends an apple, and then hand the fifth friend the basket with the apple still in it. So each friend has an apple, and there’s still one in the basket.

“For that answer, you have to think out of the box,” says Tanya. “But my students have come up with answers that are even farther out of the box.”

Their suggestions include:

One friend already has an apple. You kill one of your friends. You are narcissistic and you are your own friend. The friend who didn’t get an apple stops being your friend. An extra apple falls from the tree to the basket. And Tanya’s favorite: The basket is your friend. We should not discount people’s emotional connection with inanimate objects.

“The lesson my students taught me is that I’m good at thinking outside the box. But I realized, I’m inside my own bigger box. And maybe we all are.”

How to Solve Problems

But how do you get yourself to think outside the box? How do you approach a math problem? I know how to start a jigsaw puzzle (the edges, usually) and a crossword (look for plurals and fill in the S es). But how do you approach a math problem?

After talking to Tanya and another great math puzzle expert, Dartmouth professor Peter Winkler , I’ve come up with a list of tools for math and logic problems. Here are three of my favorites.

1) Reverse it.

When confronted with a problem, try reversing it. Turn it upside down.

Sometimes quite literally, turn it upside down.

Such as this problem:

What number belongs in the blank in this sequence: 16 06 68 88 __ 98 (It’s 87. Turn the page upside down to see why.)

There are other puzzles that require you to reverse your thinking in a slightly less literal way. Like this one:

A man is imprisoned in a ten-foot by ten-foot by ten-foot room. The walls are made of concrete, the floor is made of dirt, and the only openings are a locked door and a skylight. The man has a small shovel and starts to dig a hole in the floor. He knows that it is impossible to tunnel out of the prison cell, but he continues to dig anyway. What is the man’s plan?

Pause here if you want to figure it out yourself.

The solution is: The man wasn’t just digging a hole. He was also doing the opposite: building a little mountain of dirt. And his plan was to climb the mountain and get to the skylight.

I love reversing my thinking. Earlier this week, I was cleaning up the trail of clothes left by the males in our family (including me) that littered our apartment. I picked up an armload of clothes, then went to the hamper in my bedroom and dumped the clothes, then went back out. But wait. What if I . . . took the hamper with me. If I bring the hamper to the clothes. I’d save myself several trips. As Will Shortz once suggested, I took a bow.

2) Figure out the real goal .

One of my favorite brainteasers comes from Martin Gardner , who wrote a famous monthly column about math puzzles in Scientific American for three decades, starting in 1962. He died in 2010, but he still has tons of devotees, hundreds of whom attend a biannual event, the Gathering 4 Gardner, where they talk puzzles, paradoxes, and the genius of Martin.

Martin posed this puzzle in his book Entertaining Mathematical Puzzles :

Two boys on bicycles, 20 miles apart, began racing directly toward each other. The instant they started, a fly on the handlebar of one bicycle started flying straight toward the other cyclist. As soon as it reached the other handlebar, it turned and started back. The fly flew back and forth in this way, from handlebar to handlebar, until the two bicycles met.

If each bicycle had a constant speed of 10 miles an hour, and the fly flew at a constant speed of 15 miles an hour, how far did the fly fly?

Pause here if you want to try it yourself, spoilers ahead.

So how to solve this? Most people’s first instinct—including mine—is to trace the back-and-forth path of the fly and try to add up the distance.

With this method, you’d try to calculate the distance from Biker 1’s handlebars to Biker 2’s handlebars. Then the fly would make a U-turn, so you’d calculate the next distance, from Biker 2 to Biker 1. And so on until the bikes met.

This turns out to be a highly complex computation involving the speed of the bikers, the speed of the insect, and time and distance. The operation is called “summing an infinite series.”

This calculation is impossible to do in your head. Well, practically impossible. Legend has it that the brilliant Hungarian mathematician John von Neumann was once asked this brainteaser at a party, and, to the amazement of the quizzer, gave the correct answer by summing the “infinite series” in his head, no calculator needed.

Von Neumann was too smart for his own good. If he had paused for a moment, he might have realized there’s a much easier way to solve this problem.

Which brings me back to the strategy: What is the real goal?

You want to phrase the problem in the simplest possible way. Strip the problem to its basics, and you’ll realize you are looking for one thing: the distance the fly can fly in an allotted amount of time.

You can ignore the fly’s back and forth switch of directions. You can ignore the handlebars. They’re irrelevant. You just need to know how far the insect can go in the time it takes the bikes to meet.

Which turns out to be a pretty easy calculation:

If each bike was going at 10 miles per hour, and they were 20 miles apart, then it would take the bikes one hour to reach each other.

So the fly was buzzing around for one hour. What is the distance the fly can cover in one hour? Well, it’s going 15 miles per hour. So the answer is fifteen miles.

We often complicate problems when there’s an easier method right in front of us. I think this is true in more than just math puzzles.

I’m not sure if this is exactly analogous, but it’s staring me in the mirror, so let me tell you about one example. Recently, I was faced with the puzzle of how to cut my own hair. During quarantine, I couldn’t go to the barber, and Julie claimed she wasn’t qualified. I had to do it myself using YouTube tutorials.

My first attempt to cut my own hair had mixed results. The front turned out okay, but the harder-to-reach back of my head was a disaster, filled with uneven patches.

So I paused. I rephrased the problem. The goal is not to cut my hair flawlessly. The goal is to look respectable on Zoom. And on Zoom, no one ever sees the back of my head.

So the simplest solution: Just cut the front of my hair and leave the back alone to grow wild and free. Puzzle solved! Though for the first time in my life, I do have a mullet.

3) Break it down into manageable chunks 

One type of logic puzzle—often called Fermi Problems —provides excellent training for solving some real-life problems. A Fermi Problem is one like this: “How many piano tuners are there in New York City?” You have to estimate the size of something about which you are totally ignorant. 

If you just take a wild guess without reflecting, you’ll probably be off by orders of magnitude. Instead, as David Epstein explains in the psychology book Range: Why Generalists Triumph in a Specialized World , the best method is to break the problem down into parts you can reasonably estimate.

As Epstein writes: “How many households are in New York? What portion might have pianos? How often are pianos tuned? How long might it take to tune a piano? How many homes can one tuner reach in a day? How many days a year does a tuner work?” 

You won’t guess it exactly, but you’ll be much more likely to be in the ballpark. As Epstein writes, “None of the individual estimates has to be particularly accurate in order to get a reasonable overall answer.”

Epstein calls it an important tool in his “conceptual Swiss Army knife.” I too find it helpful when reading statistics from dubious media sources, or listening to wild cocktail party speculation. 

Breaking problems into chunks even works when trying to motivate yourself. Take the puzzle of how I can get my lazy butt to walk the treadmill for a few minutes a day. If I say to myself, “You have to walk on the treadmill for an hour today,” I will delay this task forever. So I break it down. I put the big picture out of my mind. First, I tackle the subgoal of putting on my sneakers. I can do that. Then the subgoal of turning the treadmill on. I can do that. And just step onto the rubber belt for just five minutes. I can do that. And eventually, I’m walking and realize this isn’t so bad. I can do this. I stay on for the full hour. Excerpted with permission from THE PUZZLER: One Man’s Quest to Solve the Most Baffling Puzzles Ever, from Crosswords to Jigsaws to the Meaning of Life by A.J Jacobs.  

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A.J. Jacobs is one of my favorite guests. If you liked this topic you might enjoy the Remote Associates Test. (remote-associates-test.com)

Puzzles and riddles have been used for centuries as a way to improve thinking skills. They force you to think outside the box and look at problems in new and different ways. In addition, puzzles and riddles can help improve your memory and attention span. While there are many different ways to improve your thinking skills, puzzles and riddles offer a fun and unique way to challenge yourself. So next time you’re feeling stuck, try working on a puzzle or riddle. You might be surprised at how much better you think after.

Re the “16 06 68 88 __ 98” puzzle – I think it’s rather flawed, as you’d have to write this upside down to fit the puzzle, hence it wouldn’t be “87”

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Problem Solving Games, Activities & Exercises for Adults

Here is our list of the best problem solving games, activities and exercises for adults.

Problem solving games are activities that require players to use critical thinking skills to solve puzzles. Example activities include escape rooms, Sudoku, and murder mysteries. The purpose of these exercises is to sharpen reasoning and decision-making skills in group settings and to do team building with employees.

These activities are a subset of remote team games , found in problem solving books , and are similar to team puzzles , team building brain teasers and team riddles .

This article contains:

• team building problem solving activities for employees
• free problem solving games for adults
• virtual problem solving activities for students
• group problem solving activities
• problem solving team builders

Here we go!

List of problem solving games & activities

From word and number puzzles to role-playing games, here is a list of inexpensive and free problem solving team builders that help groups practice the art of critical thinking and compromise.

1. Espionage! (Team Favorite)

For an exciting game of social deduction, check out Espionage! This thrilling experience will put your team’s wits and instincts to the test.

Espionage! offers the following:

• a 90-minute session led by an experienced host
• undercover teams of agents and spies
• challenging puzzles, tasks, and maneuvers
• team conversations to help uncover secret identities

The best part is we will bring all the necessary game materials to your preferred location. If you are interested in boosting communication and critical-thinking skills within your team, then consider Espionage!

Learn more about Espionage!

2. Art Heist: The Vanishing of Van Gogh (Hosted)

You can turn your team into skilled detectives with Art Heist: The Vanishing of Van Gogh! In this captivating mystery, participants will locate the stolen artwork, The Bedroom .

Key features of this experience include:

• a 90-minute adventure led by a world-class host
• detailed puzzles, clues, and mysteries to unravel
• trails of evidence and hidden secrets
• group discussions to find the art

Additionally, you can include a cocktail kit to spice up your event. Through Art Heist, you will enhance your team’s ingenuity and problem-solving skills!

Learn more about Art Heist: The Vanishing of Van Gogh .

Get our free team building toolbox

• icebreaker games
• bingo cards

3. War of the Wizards (Popular)

With War of the Wizards, teams roleplay as minions of powerful wizards to vanquish forces of evil. Participants will play thrilling games and go on a quest to restore harmony to the realm!

War of the Wizards offers the following:

• a 90-minute journey guided by a distinguished host
• immersive storytelling that transports players into a magical realm
• engaging activities like world-building, role-playing games, and storytelling
• opportunities for forming alliances, facing challenges, and going on quests

Through the power of imagination and teamwork, your team can overcome tasks and participate in an epic fantasy battle. To improve communication and bonds, include War of the Wizards in your agenda!

Learn more about War of the Wizards .

Sudoku is one of the most popular free problem solving games for adults. The objective of this game is to fill each box of a 9×9 grid so that every row, column, and letter contains each number from one to nine. The puzzle makes a great team challenge. To play Sudoku on Zoom, screen share the game board. Then, turn on the annotation features. Using the add text functions, participants can fill in the numbers on the grid.

We made a starter puzzle you can use in your next meeting or virtual team bonding session:

Here are more online Sudoku puzzles .

5. Crossword puzzles

Crossword puzzles are word games that ask players to fill in words based on clues. Words interconnect, and players must think critically about the surrounding words to select the right phrase for the space.

You can use an online crossword puzzle maker to create a custom puzzle. Here are a few themes you may want to consider:

• teammates’ tastes and interests
• company knowledge and history
• industry terms and trends

Or, create a miscellaneous puzzle just for fun.

We made a sample puzzle you can use for your game:

To complete puzzles during online meetings, you can use the share screen function and add text through annotations.

Or, subscribers can play the New York Times’ daily crossword puzzle virtually . Dictionary.com also offers a free daily online crossword puzzle .

Check out more vocabulary games .

6. Online Escape Rooms

Escape rooms are timed games that get groups working together to solve puzzles. Traditionally, players enter a locked room and must complete all puzzles in an hour or two to unlock the door. However, groups can also play escape rooms online.

Digital escape rooms typically come in one of two forms: in a Zoom room and led by a host, or in a choose-your-own adventure format via Google Forms or websites. To play escape rooms virtually, enter a video meeting and follow the prompts, or screen share the Google Form and work out the puzzles together.

Check out our full list of online escape rooms .

7. Murder Mysteries

Murder Mysteries are story-based games that ask players to take on the roles of suspects or detectives while trying to identify a killer. These games often involve reading lines from a script, searching for clues, and occasionally solving puzzles to get hints.

These games make participants pay attention to conversations, analyze other characters’ behavior, and search for hidden meaning in the script. Players must use their powers of observation and logic to unravel the mystery.

Check out our list of Zoom murder mystery games .

8. Treasure Hunts

Treasure hunts are scavenger hunts with intention. While virtual scavenger hunts often ask players to collect random items, treasure hunts require participants to locate clues that lead to other prompts and hints. The game typically ends with players finding a treasure or solving a mystery, sometimes both.

The treasure hunt can have a specific theme such as secret agent missions or a hunt for pirate treasure, or you can run a more general hunt. Teammates can either compete simultaneously via Zoom call, or can play the hunt on an app individually and compete to beat each other’s scores.

Check out our list of treasure hunt apps .

9. Poem or story challenge

Most team building problem solving activities for employees revolve around science, math, and logic. Poem/story challenges rely on writing skills and are sure to appeal to the language lovers on your team.

Each player receives a limited word bank to use to create a story or poem. Then, players have a few minutes to craft their pieces. Afterward, everyone reads out or screen shares their creations.

Here are a few word challenge activities you can do remotely:

• Found poems or stories : Participants make poems or stories out of words they find by visiting websites, searching emails, glancing out the window, or taking a walk or drive around the neighborhood.
• Random word generators : Teammates use a random word generator to populate a word bank, and must use each word in the poem or story.
• Poetry magnets : Group members make poems using poetry magnets. You can send poetry magnet sets to employees and assemble the verses on a cookie pan during a Zoom call. Or, teammates can play with poetry magnets online .
• Page poems: Participants receive one page of a book or magazine, and must make a poem or story by blocking out other words so only the chosen text remains visible. This activity is part storytelling, part art, since story crafters can illustrate the pages as part of the design.
• Ransom note stories or poems : Players cut out letters from magazines and must form new words to make poems and stories. Or, players can receive a mix of random letters, form words, and run the text through a ransom note generator .

These activities are suitable for teams and individual players.

10. Moral challenge

Some problems are ethical rather than factual. Moral judgment plays just as important a role in the decision-making process as technical prowess. Players can flex their moral problem-solving skills by tackling ethical dilemmas or social puzzles.

Here are some social problem solving games online:

• Moral machine
• Scruples – the game of moral dilemmas
• Morality play

To play these games, either download the apps, or pull up the website and then screen share the prompts. These games are best played when discussed as a group, because the more belief systems and opinions, the harder an issue is to resolve. These exercises provide practice for real-life conflict resolution.

You can find similar challenges on our list of online personality tests .

11. Frostbite

Frostbite is a group game that hones team leaders’ communication skills while sharpening teammates’ listening and cooperation skills. The premise behind the game is that a group of explorers gets caught in a snowstorm and must build a shelter. Frostbite has paralyzed the leaders’ hands and snow-blinded the rest of the team. The leader must give the team instructions to build a tent that can resist arctic winds.

To play Frostbite, each teammate wears a blindfold. Then, the leader gives directions. Once the structures are complete, players turn on a fan to test whether tents can withstand the wind.

Frostbite is usually an in-person game, however you can also play virtually. In the remote version of the game, teammates construct tents out of cards and tape, while the leader surveys the scene on screen.

This exercise demonstrates the challenges of leading remotely, as teams need to operate with minimal oversight or supervisor observation. Therefore, instructions need to be clear and direct to be effective.

Check out more team building games .

12. Virtual Hackathons

Hackathons are events where participants have a set amount of time to design and pitch a new product or solution. This type of event originated in the programming world and is often used to create new apps, however you can apply the game to any industry or school subject.

Virtual hackathons are online versions of the event. Teams enter the competition, then work with each other via virtual meeting software or remote work communication platforms to design the solution. At the end of the competition, teams pitch ideas to a panel of judges and a winner is decided.

To run a virtual hackathon, first announce the theme of the event and collect sign-ups. So that no teams work ahead, hint at the general idea of the issue, and only explain the precise problem when the event begins. Then, give teams anywhere from a few hours to a few days to complete the project.

Discover more virtual hackathon ideas .

13. Improv games

Improv games are excellent problem solving activities. These exercises force participants to think and respond quickly to keep scenes moving in a logical and entertaining way.

Here are some good problem solving improv games:

Banned words : Performers cannot say certain words. Scene partners will conceive of situations that encourage the actors to use those words, and the actors must find alternatives, such as using synonyms or taking the scene in a new direction.

Scenes from a chat : Audience gives a suggestion for a scene, and players act the scene out. Though it’s a fictional and often ridiculous scenario, actors must react to the situation and solve the problem in order for the scene to end.

Miracle cure : Miracle cure is a quick-moving exercise that follows a simple format. One player declares, “I have a problem.” Another player responds, “I have a….[random object.]” The first player then replies, “great! I can use the [random object] to….” and describes how they will solve the problem.

Check out more problem-solving improv games .

14. Spaghetti Tower

The spaghetti tower is a classic team building game. Participants gather uncooked spaghetti and marshmallows, and must construct the tallest freestanding tower.

During the in-person version, players must construct one tall freestanding tower. However, for the virtual version of the game, players construct individual towers. You can send groups to breakout rooms for the build, then reconvene in the main room for judging. Teams are judged on three main factors: number of towers, height, and uniformity.

This version of the game not only tests the structural integrity of the tower, but also consistency and quality control. This exercise teaches teams to align and collaborate remotely, and produce a consistent product even when far apart.

15. What Would You Do?

What Would You Do? is a simple situational game that challenges participants to react to different circumstances. To play this game, read prompts one by one, and then ask participants to respond with gameplans. You can use the polling or raise hand feature to vote for the best option.

Here are some problem solving scenarios for adults or kids to use in the game:

• Zombies attack and you have to find a place to hide.
• You are at the zoo and the animals escape. Which one do you try to corral back into the pen first?
• After waiting in line for hours, someone cuts in front of you last minute. The person appears to be visually and hearing impaired, and doesn’t notice your protests. An official announces that due to diminishing supply, this individual will be the last in line to be served.
• You are eating a meal with important clients and/or your partner’s parents, and you want to impress. The individuals make you a dish that does not fit within your dietary restrictions, but you do not speak the same language and cannot explain why you do not want to eat.
• An imposter has infiltrated the organization, who looks, speaks, and behaves exactly like you. How do you convince your peers that you are the original?

For similar dilemmas, check out this list of Would You Rather? questions.

16. Desert Island Survival

Desert Island Survival is a game that challenges players to prioritize. The premise is that players have been stranded on an island, and must decide what order to perform survival steps.

Here are the possible actions:

• Set up shelter
• Explore the island
• Try to signal for help
• Make weapons for self-defense
• Build a raft to escape the island
• Start a fire
• Choose a group leader
• Search for other survivors

All group members must agree on the order of the steps. Players should explain the reasoning for the order of each step while ranking the actions.

Another version of the game involves players receiving a list of 15 to 20 items, and selecting five or so to bring to the island. You can also vary the location of the game, substituting remote islands for destinations like outer space or the distant past.

17. Choose Your Own Adventure

Choose Your Own Adventure stories enable readers to determine the outcome of the story by making decisions. Each action has a consequence that takes the tale in a different direction. Participants can try to guess how the story may unfold by talking through the different choices. When completing the activity in a group setting, the majority of the team must agree on an action before moving forward in the story.

There are a few ways to facilitate these activities online:

• Play an online role playing video game
• Watch an interactive movie like Black Mirror: Bandersnatch
• Read from a Choose Your Own Adventure book on Zoom
• Click through a Choose Your Own Adventure platform
• Create your own story using a Google Form

Whichever way you choose to do the exercise, you can use the screen share feature in your virtual meeting software so that listeners can more easily follow along.

18. MacGyver

MacGyver is a show where the hero escapes sticky situations by improvising tools out of unlikely materials. For example, in one episode the hero makes a telescope out of a newspaper, magnifying lens, and a watch crystal.

To play MacGyver, you can either list three to five objects participants can use, or challenge players to use items that are within arms reach.

Simply state a desired end result, such as “a way to open a locked door,” or “a getaway vehicle,” and then ask teams to explain what they will build and how they will build it. To make the activity more collaborative, you can give teams five or ten minutes in breakout rooms to strategize and design a prototype.

19. Dungeons & Dragons

Dungeons & Dragons is a roleplaying game where players pretend to be magical figures and creatures. One player serves as the dungeon master, who guides the game, while the other players pick characters and make decisions to move the story forward. Upon choosing a course of action, players roll a twenty-sided die to determine whether or not the plan succeeds. The game is story-based, the possibilities are nearly limitless, and truly creative problem solving options arise. Also, since gameplay is mostly verbal, Dungeons & Dragons is an easy activity to do over Zoom.

Here are the basic rules for Dungeons & Dragons .

20. Pandemic

Pandemic is a game that pits players against the forces of nature in a race to contain and control disease outbreaks. At the beginning of the game, each player receives a role such as containment specialist or operations expert. Participants must carry out the duties of their roles by choosing appropriate actions. Pandemic is a great game for groups because each team member has a clear part to play, and players must collaborate and work together instead of competing against each other.

To play the game online, you can use a Pandemic game app , or talk through the exercise while one attendee moves and displays pieces on the board.

Note: The subject of this game might hit too close to home for some players, considering recent history. You can find games with similar mechanics that deal with different subject matter, such as Forbidden Island.

Check out more team building board games .

21. Model UN

Model UN is one of the best virtual problem solving activities for students. This exercise casts participants in the role of international diplomats who must negotiate to solve realistic problems. Each player assumes the role of a country ambassador and must form alliances and propose solutions to solve crises.

Here are some sample Model UN scenarios:

• Human rights violation by powerful country
• Food shortage
• Disease epidemic
• Technology privacy violations
• Civil war branching into surrounding countries
• Natural disasters

Depending on the size of the group, participants either take on the part of an entire government of a country, or play a certain role within the government. To carry out the activity on Zoom, players can take turns giving speeches, message other countries privately via the chat, meet in breakout rooms to form alliances or have more intimate discussions, and use the polling feature to vote on propositions.

If politics does not resonate with your group, then you can alter the exercise by applying the same activity structure to a different theme, such as the Justice League, movie characters, business board members, or reality TV stars.

The main purpose of the exercise is to research, talk through problems, and compromise. As long as these elements are present, then the specifics of the setup do not matter.

There are many types of problem solving activities for adults. You can do online problem solving games, which require a different skill set than in-person problem solving. For instance, communication must be much clearer and more abundant when group members are far apart and unable to demonstrate or pick up physical cues.

Though many problem solving games include props and in-person elements, there are many games you can play together online. These exercises work well as educational tools as well as team bonding accelerators. Upon completion, participants are likely to feel a sense of accomplishment and increased confidence. These games are also great practice for real life conflict resolution, creative thinking and team building.

Next check out this list of connection games , this collection of crime-solving games , and this post with conflict resolution games .

We also have a list of the best decision making books and a list of team building problems for work .

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FAQ: Problem solving activities

Here are common answers to questions about group problem solving activities.

What are problem solving games?

Problem solving games are challenges that ask players to think critically and use logic to overcome issues or answer riddles. Examples include sudoku, murder mysteries, and spaghetti towers. These games are also known as “problem solving exercises”, “problem and solution games” and “group problem solving activities.”

What are the best problem solving games for groups?

The best problem solving games for groups include online escape rooms, moral challenges, and improv games.

What are some good problem solving team building activities for students?

Some good problem solving activities for students include crossword puzzles, choose your own adventure stories, and model UN.

How do you play problem solving games online?

The best way to play problem solving games online is to join a video call meeting to talk through the issue. Using the screen sharing and digital whiteboard features helps participants visualize the problem more clearly. Breakout rooms give teams the chance to discuss the issue more intimately.

Author: Angela Robinson

Marketing Coordinator at teambuilding.com. Team building content expert. Angela has a Master of Fine Arts in Creative Writing and worked as a community manager with Yelp to plan events for businesses.

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50+ Puzzle Reasoning questions with Answers । Logical Reasoning Puzzle

Puzzle reasoning questions are questions or tasks that require the use of logical thinking and analytical skills to solve a puzzle or brainteaser. These types of questions are often found in competitive exams, aptitude tests or job interviews as a way to assess a person’s problem-solving abilities. In this post, covered most important 50+ Puzzle Reasoning questions with Answers that help to enough practice of Puzzle reasoning questions for government exam. Let’s start some basic to hard examples of Puzzle Reasoning questions and Answers

What is Puzzle Reasoning ?

Tricks and tips to solve puzzle reasoning questions, puzzle reasoning questions with answers pdf, puzzle reasoning questions with answers, puzzle reasoning questions and answers.

• Puzzle Reasoning Questions For Competitive Exam
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• Conclusion:

Puzzle reasoning is the process of solving puzzles which is already confused in a given question, generally this questions solved by creating table and diagram formatted data which is quite challenging and to be much difficult to solve, often requiring logical thinking, creativity, and problem-solving skills. Puzzles can be in many different forms, such as crosswords, word searches, riddles, or math problems. Puzzle reasoning involves using various strategies and techniques to analyze and understand the puzzle, and then coming up with a solution. It can be a fun and engaging way to exercise the mind and improve problem-solving skills.

• Read the question carefully and make sure you understand what is being asked.
• Break the problem down into smaller pieces and work on each piece separately.
• Look for patterns or trends in the data provided.
• Draw the multiple diagrams according to their given possibilities
• Find the correct diagram, which is fit in all given statement.
• Once you found correct diagram, start to Solve their parent questions.

Q.1-3. Study the following information carefully and answer the question given below: There are five batsmen A, B, C, D and E who have scored the number of centuries and have taken the different number of innings while each batsman has a different total score. D has scored the highest number of centuries but has not taken the maximum number of innings among them. The person who scores least total runs takes the highest number of innings. The person who has taken least innings has also made least number of centuries but scores highest total runs. A takes less innings than C and E. E takes less innings than only B and D. C scores total runs more than D but scores less number of centuries than B and D. E sores total runs more than only B. E takes less innings than D and has scored more centuries than only A.

Q-1 Among the following persons who scores highest number of total runs? (1) B (2) C (3) D (4) E (5) A

Q-2 Who among the following is highest and lowest scorer respectively? (1) A,B (2) D,E (3) C,D (4) B,C (5) E,C

Q-3 How many persons take less innings than D to score more runs than D? (1) One (2) Two (3) More than two (4) None (5) Cannot be determined

Q.4-5 . Read the given information carefully and answer the questions given below: Nine friends P, Q, R, S, T, U, V, W and X are organising a party in three different months among January, March and April but not necessarily in the same order. The party held on three different dates like 15th, 16th and 17th of each month. No two friends organise the party on the same date of the same month. Only two friends organising the party before W. Three friends organise the party between Q and X. U organises the party on 16th of the month which has less than 31 days. Q’s party is after W and not on an odd date. R and X organise the party in the same month. Only two friends organising the party between R and S. T does not organise the party on an odd date but organises the party after P.

Q-4 How many person are organizing the party between Q and U? (1) One (2) Two (3) Three (4) Four (5) None of these

Q-5 Whose party is on the 15th of April? (1) X (2) U (3) P (4) R (5) None of these

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