What single yes/no question could you ask?
Answer: Would your brother say that you tell the truth?
The key to this logic problem, is to find a question that the two brothers would answer differently, and that difference would therefore identify the two from each other. The lying brother would answer the above question “yes.” The truthful brother would answer the same question “no.”
Your Answer
More puzzles to try-
Never Moves
What runs all around a backyard, yet never moves?Read More »Why is this?
A man in New York City has $10. He spends $6.50 on flowers, and $3 on lunch (hot coffee and ...Read More »Cats Hair
Scientists have proven that cats have more hair on one side than their other side. Some people believe that this ...Read More »Not a Person
He has many, many emotions, but he is not a physical person. What is he?Read More »You stand at a fork in the road?
You stand at a fork in the road. Next to each of the two forks, there stands a guard. You ...Read More »How is this possible?
Daniel, Claude and Lou are friends. Daniel is Claude’s brother. Claude is Lou’s brother. Lou is not Daniel’s brother. Question ...Read More »How will you survive this situation?
You are trapped in a remote place with barren land all around you.. You are standing in the middle of ...Read More »Find the next number in the sequence
What is the next number in this series? 1, 2, 6, 42, 1806?Read More »Black or Brown Gloves
Mr. Brown has 8 black gloves and 8 brown gloves in his closet. He blindly picks up some gloves from ...Read More »Maker never paid
It grows in the dark and shine in the light; The paler it is, the more it is liked; Its ...Read More »Quick Multiply
Which number multiplied by itself will give the output as 12345678987654321 ?Read More »Spaceship Lost Puzzle
A spaceship was lost. The detective was given a piece of paper. This was the location of the spaceship! This ...Read More »A special squarish age
Let’s say that a number is squarish if it is the product of two consecutive numbers. For example, 6 is ...Read More »What is the number riddle
A number has three digits. The sum of the three digits equals 36 times of the number. Seven times the ...Read More »You buy it to eat, but you don’t eat it
You buy it to eat, but you don’t eat it. What is it?Read More »You are all where
You will find me in Mercury, Earth, Mars and Jupiter, but not in Venus or Neptune. What am I?Read More »English Winglish
Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT. Hint: The grid reads the same ...Read More »Famous Spy
What body of water was named after a famous spy?Read More »Fishy Situation Puzzle
A man and his friend is on a deserted island with a fisherman. They needed food or they won’t survive ...Read More »Whats the client old and new passwords ?
There was some system error in a mailing website because of which passwords of some clients got changed. Here is ...Read More »
Accenture Interview PuzzlesAdobe Interview PuzzlesAge RiddleAkbar Birbal PuzzlesAlgorithm PuzzlesAlphabet riddleAmazon Interview PuzzlesAnalytical MathematicsAptitude PuzzleBank PuzzlesBetting PuzzlesBrain TeasersCalendar PuzzlesCards PuzzlesChess Board PuzzleChess PuzzlesChristmas Puzzlecipher PuzzleCivil Services PuzzleClock time puzzleCognizant Interview PuzzlesCoins PuzzleComputational PuzzleconundrumCoronavirus PuzzleCoupondunia Interview PuzzleCritical Thinking Puzzledata analyticsData Structure Interview QuestionsDecode PuzzleDetective PuzzlesDice PuzzleDictionary Riddlesdifficult riddleEasy Math puzzlesEasy puzzlesEinstein puzzleEnglish RiddleFamily Tree Puzzlefamous puzzleFill in the blanks riddlesFinding Killer RiddlesFlipkart interview puzzlesFunny RiddlesGeneral KnowledgeGeographical PuzzleGoogle Code Jam 2014Google Interview PuzzlesGRE PuzzleHard Puzzle
