• Brain Teasers & Puzzles

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    • The Puzzle Fry Band

      Five friends pooled their resources one day and pieced a CD together from songs they had written. They called their band “The Puzzle Fry”  and ended up playing a number of live gigs at local events. Determine the full name of each band member, the instrument (or mixing console) each played, the brand of equipment each used, plus each member’s favorite magazine.

      • Steve wasn’t the sound engineer. One of the women enjoyed EQ magazine.
      • Angie and Steve didn’t like Recording magazine. The bass player used Ibanez equipment.
      • Mr. Magnus didn’t use Mackie equipment. Mark’s last name wasn’t Hydal and he didn’t play keyboard.
      • The sound engineer, whose last name wasn’t Engel, enjoyed reading Mix magazine. The person who used Yamaha drums wasn’t Robert, but their last name is Hydal.
      • The five band members (in no particular order) were: Mark Scott, the female bass player, the person who read Musician, the one who used Peavey equipment, and Robert.
      • Shelley’s last name was not Hydal or McArthur and she didn’t use Roland equipment. Mackie only developed equipment for live sound and recording NOT musical instruments.
      • Steve McArthur was the guitarist.

      Use the grid to help solve the puzzle!

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      ronret45 Expert Hadest puzzles.
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    • Find The feeding Time
      In a zoo Peter was in charge of feeding all of the animals in the morning. He had a regular schedule that he followed every day. Can you figure it out from the clues?
      • The giraffes were fed before the zebras but after the monkeys.
      • The bears were fed 15 minutes after the monkeys.
      • The lions were fed after the zebras.

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      ronret45 Expert Other Interview Puzzles.
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    • The Death Statemant

      Once a man was caught for a minor offense and was presented in king Akbar’s darbaar
      Akbar wanted to test the man and said: “You must give me a statement. If it is true, you will be killed by lions. If it is false, you will be killed by trampling of wild buffalo.”

      Man was not able to answer and in the end requested help from Birbal, As it was minor offense Birbal decided to help and suggested him the statement.

      After hearing the statement, king Akbar had to let the man go.

      Can you think of the statement that Birbal suggested?

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      ronret45 Expert Puzzles.
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    • Find the Real King

      Once Birbal entered the king’s Courtroom, he found that there were six people sitting in front of him adorning the same robe.

      All the 6 men were looking same with similar get ups and features and so it was hard to judge who the real king was.

      After a couple of minutes, Birbal approached one of them and bowed in front of him greeting him.

      That was the real king. How did Birbal know who was the real king?

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      ronret45 Expert Easy puzzles.
      • 1,866.9K views
      • 1 answers
      • 2 votes

    • One Bulb with 3 Switches

      You have 3 switches in a room. One of them is for a bulb in next room. You can not see whether the bulb is on or off, until you enter the room. What is the minimum number of times you need to go in to the room to determine which switch corresponds to the bulb in next room.

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      ronret45 Expert Easy puzzles.
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    • Knight on a Chess Board

      Given the size of the chess board and initial position of the knight, what is the probability that after k moves the knight will be inside the chess board.

      Note:-
      1) The knight makes its all 8 possible moves with equal probability.
      2) Once the knight is outside the chess board it cannot come back inside.

      Puzzlefry added Info-
      This challenge is originally from a blog post of crazyforcode.com published under the CC BY-NC-ND 2.5 IN licence.

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      ronret45 Expert Puzzles.
      • 1,867.2K views
      • 2 answers
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    • THE DICHOTOMY PARADOX

      Imagine that you’re about to set off walking down a street. To reach the other end, you’d first have to walk half way there. And to walk half way there, you’d first have to walk a quarter of the way there. And to walk a quarter of the way there, you’d first have to walk an eighth of the way there. And before that a sixteenth of the way there, and then a thirty-second of the way there, a sixty-fourth of the way there, and so on.

      Ultimately, in order to perform even the simplest of tasks like walking down a street, you’d have to perform an infinite number of smaller tasks—something that, by definition, is utterly impossible. Not only that, but no matter how small the first part of the journey is said to be, it can always be halved to create another task; the only way in which it cannot be halved would be to consider the first part of the journey to be of absolutely no distance whatsoever, and in order to complete the task of moving no distance whatsoever, you can’t even start your journey in the first place.

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      John123 Expert Unsolved Puzzles.
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    • Man in the temple

      One person has some money in his pocket, He visits four temple on the way. As soon as he enters a temple, his money gets double and he offers Rs. 100 in each temple thus his pocket gets empty after he returns from the fourth temple. Now the question is how much money he had initially ?

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      ronret45 Expert Puzzles.
      • 1,867.0K views
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    • THE CROCODILE PARADOX

      A crocodile snatches a young boy from a riverbank. His mother pleads with the crocodile to return him, to which the crocodile replies that he will only return the boy safely if the mother can guess correctly whether or not he will indeed return the boy. There is no problem if the mother guesses that the crocodile will return him—if she is right, he is returned; if she is wrong, the crocodile keeps him. If she answers that the crocodile will not return him, however, we end up with a paradox: if she is right and the crocodile never intended to return her child, then the crocodile has to return him, but in doing so breaks his word and contradicts the mother’s answer. On the other hand, if she is wrong and the crocodile actually did intend to return the boy, the crocodile must then keep him even though he intended not to, thereby also breaking his word.

      The Crocodile Paradox is such an ancient and enduring logic problem that in the Middle Ages the word “crocodilite” came to be used to refer to any similarly brain-twisting dilemma where you admit something that is later used against you, while “crocodility” is an equally ancient word for captious or fallacious reasoning

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      John123 Expert Unsolved Puzzles.
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    • THE CARD PARADOX

      Imagine you’re holding a postcard in your hand, on one side of which is written, “The statement on the other side of this card is true.” We’ll call that Statement A. Turn the card over, and the opposite side reads, “The statement on the other side of this card is false” (Statement B). Trying to assign any truth to either Statement A or B, however, leads to a paradox: if A is true then B must be as well, but for B to be true, A has to be false. Oppositely, if A is false then B must be false too, which must ultimately make A true.

      Invented by the British logician Philip Jourdain in the early 1900s, the Card Paradox is a simple variation of what is known as a “liar paradox,” in which assigning truth values to statements that purport to be either true or false produces a contradiction. An even more complicated variation of a liar paradox is the next entry on our list.

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      John123 Expert Unsolved Puzzles.
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