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Puzzle Archives :: Interview Puzzles

 Interview Puzzles Practice Set 2

  • Question :: 1

    There are n glasses on the table, all standing upside down. In one move, you are allowed to turn over exactly n – 1 of them. Determine all values of n for which all the glasses can be turned up in the minimum number of moves.


    No Best Answer on this question yet!

    Asked In : Sapient

  • Question :: 2

    Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?



    No Best Answer on this question yet!

    Asked In : Sapient

  • Question :: 3

    A man has two ropes of varying thickness (Those two ropes are not identical, they aren’t the same density nor the same length nor the same width). Each rope burns in 60 minutes. He actually wants to measure 45 mins. How can he measure 45 mins using only these two ropes.
    He can’t cut the one rope in half because the ropes are non-homogeneous and he can’t be sure how long it will burn.


    No Best Answer on this question yet!

    Asked In : Sapient

  • Question :: 4

    You are standing before two doors. One of the paths leads to heaven and the other one leads to hell. There are two guardians, one by each door. You know one of them always tells the truth and the other always lies, but you don’t know who is the honest one and who is the liar.

    You can only ask one question to one of them in order to find the way to heaven. What is the question?


    No Best Answer on this question yet!

    Asked In : Infosys

  • Question :: 5

    You are blindfolded and 10 coins are place in front of you on table. You are allowed to touch the coins, but can’t tell which way up they are by feel. You are told that there are 5 coins head up, and 5 coins tails up but not which ones are which. How do you make two piles of coins each with the same number of heads up? You can flip the coins any number of times.


    No Best Answer on this question yet!

    Not Yet Asked in Any of the Companies

Puzzle test enable the companies to check the Logical skills of a candidate. Check out these Puzzle topics with answers for the interview! You can choose a topic and speak up your mind through a Gmail type editor.