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Get Ready for Brainteasers of Any Kind

Monk Steps
Brainteaser: Monk Steps
A monk has a very specific ritual for climbing up the steps to the temple. First he climbs up to the middle step and meditates for 1 minute. Then he climbs up 8 steps and faces east until he hears a bird singing. Then he walks down 12 steps and picks up a pebble. He takes one step up and tosses the pebble over his left shoulder. Now, he walks up the remaining steps three at a time which only takes him 9 paces. How many steps are there?
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Man underwater
Brainteaser: Man underwater
On a boat is a man standing six feet tall. The man is one foot from the water. The tide rises 12 inches every 15 minutes. High tide peaks in one hour. When the tide is at its highest, how deep is the man underwater?
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Broken
Brainteaser: Broken
Can you name something which is more useful when broken?
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STANDARD
Brainteaser: STANDARD
Given the word STANDARD, take away two letters and add three digits to make a logical sequence.
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Brainteasers are a helpful exercise to train your logical thinking.
Can you solve our brain teasers? Try it out!
Gallon
Brainteaser: Gallon
You have a 4 gallon and a 7 gallon jug of water. How can you measure exactly 6 gallons of water using these two jugs?
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The judgement
Brainteaser: The judgement
A murderer is sentenced to death. He has to choose between three rooms. The first is full of raging fires, the second of assassins with loaded guns, and the third of lions that haven't eaten in 3 years. Which room is the safest for him to go to?
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Rupees
Brainteaser: Rupees
On Christmas, a beggar collects 71 rupees in form of 20-paisa and 25-paisa. He collects a total of 324 coins. Can you tell me how many number of 20-paisa and 25-paisa he got ?
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Passwords
Brainteaser: Passwords
A man worked at a high security institution. The man tried to log into his computer and the computer denied access. He then remembered that the passwords to the computers were reset every month for security reasons. He called his boss for his new password. The man said, "Boss, my old password is out of date." The boss said, "Yes, it is. The new password is different, but if you listen closely you will be able to figure out the new one. Your new password has the same number of letters as the old one, and four of the letters are the same." The man then logged into his computer with no trouble. What was the new password? What was his old?
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Search the word
Brainteaser: Search the word
Name an English word of more than 2 letters that both begins and ends with the letters "he" in that order. There are two possible answers. "hehe" is not acceptable.
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Word Quiz
Brainteaser: Word Quiz
What can be used to build up castles, tear down mountains and make some men blind?
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River Crossing Problem Solution
Brainteaser: River Crossing Problem Solution
2 ladies and 2 girls need to cross a river in a boat big enough for 1 lady or 2 girls. How do they do it?
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Apple problem
Brainteaser: Apple problem
There is a basket containing 5 apples. How do you divide the apples among 5 children so that each child has 1 apple while 1 apple remains in the basket?
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Sherlock Holmes Riddle
Brainteaser: Sherlock Holmes Riddle
British Police inspect an almost empty room, there is just a puddle of water on the floor, but no furniture. They find a dead women who has obviously hung herself from the ceiling, but they are not able to figure out how she was able to reach the rope. Sherlock and John Watson enter the crime scene to solve the case. How did the woman die? Can you help them?
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Which box should you open?
Brainteaser: Which box should you open?
There are three closed boxes that each contain either white marbles, black marbles or both, and they are labeled white, black and both. However, you're told that each of the labels is wrong. You may reach into one of the boxes and pull out only one marble. Which box should you remove a marble from to determine the contents of all three boxes?
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What am I?
Brainteaser: What am I?
I am the beginning of the end and the end of time and space. I am essential to creation, and I surround every place. What am I?
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Hens
Brainteaser: Hens
If three hens lay three eggs in three days, how many eggs does a hen lay in one day (statistically)?
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Missing money
Brainteaser: Missing money
Three people check into a hotel. They pay €30 to the manager and go to their room. The manager suddenly remembers that the room rate is €25 and gives €5 to the bellboy to return to the people. On the way to the room the bellboy reasons that €5 would be difficult to share among three people so he pockets €2 and gives €1 to each person. Now each person paid €10 and got back €1. So they paid €9 each, totalling €27. The bellboy has €2, totalling €29. Where is the missing €1?
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Math quiz
Brainteaser: Math quiz
How do you write 23 using only the number 2? 34 using only the number 3? 56 using only the number 5? 100 using only the number 9?
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Who is the murderer?
Brainteaser: Who is the murderer?
A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. Question: The police instantly arrested the murdered. Who did it and how did they know?
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Who killed Farnanski?
Brainteaser: Who killed Farnanski?
The midnight train is coming down the mountains. Art Farnanski seems to be asleep in his seat. At the station, all passengers get off the train except for one. The conductor comes and taps him on the shoulder to let him know they have arrived. Art Farnanski does not answer. He is dead. Hours later the four people that had shared the train compartment with the dead man are at the police station. The man in the dark suit claims: "I'm innocent. The blonde woman was talking to Farnanski." The blond woman claims: "I'm innocent. I did not speak to Farnanski." The man in the light suit claims: "I'm innocent. The brunette woman killed him." The brunette woman: "I'm innocent. One of the men killed him." The police detective comes up to you and says: “I know that four statements are wrong and four are true. Who killed Farnanski? (Only one person is guilty).”
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Math rule
Brainteaser: Math rule
2 and 3 => 8, 3 and 7 => 27 4 and 5 => 32 5 and 8 => 60 6 and 7 => 72 7 and 8 => ?? Have you understood the rule this is based upon?
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1 3 6 7 8 11 15
1 3 5 6 7 8 9 11 15

Questions

Frequently Asked Questions
We are happy to answer the most frequently asked questions.

Brain teasers in the form of math problems and logic puzzles can still appear in interviews, but they are quite rare. More common now are market sizing guesstimates, such as “How many tennis balls can fit into a smart car?” These questions may also be referred to as brain teasers. In general, brain teasers test your creativity and ability to think outside the box.

Brain teasers are uncommon in interviews, and there is no specific rule regarding when an interviewer may choose to use one. However, they are more typical in final rounds and can be asked either before or after the main case discussion.

Market sizing guesstimates are often referred to as brain teasers as well. They are more common in interviews and consist of questions that ask you to determine a specific quantity, such as “How many golf balls can you fit into a passenger Boeing 747?” These questions test your ability to define a problem, break it down into assumptions, and use math to solve it.

Always prioritize case studies and the personal fit portion in your interview preparation, as these are the crucial aspects of your interview! Once you feel more comfortable with those, you can integrate some brain teaser practice into your preparation. This may give you the advantage you need to stand out among other candidates! You can use our brain teaser library to challenge your creative thinking. Have fun!

Brain Teaser – Challenge Your Logical and Numerical Thinking

A brain teaser is a riddle or puzzle designed to challenge your logical thinking. In interviews, interviewers may use them to gain insights into your logical and creative thinking skills, which are valuable in various careers. The most important aspect here is not just the answer but how you approach the problem. Practice our brain teasers to prepare yourself for any interview situation!

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