Get Ready for Brainteasers of Any Kind

Columbia vs. Greece
Brainteaser: Columbia vs. Greece
The coach of the Greek national team took 25 crayons to the World Cup to represent his players his tactics on a blackboard. Today it's the game against Colombia. When a chalk reduces to 1/5 of the original size, it gets too small for the coach to hold for writing and hence he keeps it aside. But the coach hates wasting things and so, when he realized that he has enough of these small pieces to join and make another chalk of the same size, he joins them and uses the new chalkstick. If he uses one chalk each day, how many days would the 25 chalks last?
Deaf and Dumb
Brainteaser: Deaf and Dumb
After the match Spain vs Netherlands a Brazilian taxi driver picked up a dutch lady who was a notorious chatterbox. He did not want to engage in conversation, so he pretended to be deaf and dumb. He pointed to his mouth and ears to indicate that he could neither speak nor hear. After she got out, he pointed to the meter so that she could see how much she owed. She paid him and walked off. Then she realized that he could not have been a deaf mute. How did she know?
Brazil vs Croatia
Brainteaser: Brazil vs Croatia
In the opening match between Brazil and Croatia on the stands a fan collects 71 reais in form of 20-centavo and 25-centavo coins. He collects a total of 324 coins. How many 20-centavo coins and how many 25-centavo coins does he collect?
Remove one
Brainteaser: Remove one
If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten. How is this possible?
Brainteasers are a helpful exercise to train your logical thinking.
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What's your name?
Brainteaser: What's your name?
Johnny’s mother had three children. The first child was named April. The second child was named May. What was the third child’s name?
Are you a detective?
Brainteaser: Are you a detective?
There is a man found dead in a circular mansion. The detective interviews the cook, maid, and babysitter. The cook said he couldn’t have done it because he was preparing the meal. The maid said she couldn’t have done it because she was dusting the corners. The babysitter said she couldn’t because she was playing with the children. Who was lying?
Raining day
Brainteaser: Raining day
A man was outside taking a walk when it started to rain. The man didn’t have an umbrella and he wasn’t wearing a hat. His clothes got soaked, yet not a single hair on his head got wet. How could this happen?
Riddle
Brainteaser: Riddle
It’s so strong, it does not break, It’s so powerful, it penetrates a lake, Sometimes it’s weak as a twig left out in the sun, It’s so wonderful it gives us the power to have fun. What is it?
Daily Brain Teaser
Brainteaser: Daily Brain Teaser
Every day you're desperate, because you cannot find the right answer. However, you set the time when to be reminded to get your gray cells going. You already know it on Facebook, but from now on you find it in your pocket as well. What are we looking for and where can you get it?
Count the houses
Brainteaser: Count the houses
While going to your grandmother's house, you counted seventeen houses on the right side. While returning back to your home, you counted seventeen houses on the left side. How many houses are there between your home and your grandmother's home?
Man Wrinkle
Brainteaser: Man Wrinkle
Man Wrinkle spent one-fourth of his life as a boy, one-eighth as a youth, and one-half as an active man. If Man Wrinkle spent 12 years as an old man, then how many years did he spend as an active man?
Primates
Brainteaser: Primates
You walk into a room where there are three primates held in their respective cages: 1) A lion that is eating the flesh of a goat. 2) An orangutan that is playing with blocks. 3) A donkey that is sitting idle. Who is the most intelligent primate in the room?

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!