• Brain Teasers & Puzzles

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    • FIND THE RIGHT DOOR

      You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don’t know which is which.

      There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.

      You can, however, ask one robot one question. The problem is one robot always tells the truth ,the other always lies and you don’t know which is which.

      What is the question you ask?

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      ravi Expert Puzzles.
      • 1,644.4K views
      • 1 answers
      • -1 votes

    • CHRISTMAS BRAIN TEASER

      Four angels sat on the Christmas tree amidst other ornaments. Two had blue halos and two – yellow. However, none of them could see above his head. Angel A sat on the top branch and could see the angels B and C, who sat below him. Angel B, could see angel C who sat on the lower branch. And angel D stood at the base of the tree obscured from view by a thicket of branches, so no one could see him and he could not see anyone either.
      Which one of them could be the first to guess the color of his halo and speak it out loud for all other angels to hear?

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      ravi Expert Microsoft Interview Puzzles.
      • 1,643.6K views
      • 1 answers
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    • COLOUR OF HEADBAND???

      Three Palefaces were taken captive by a hostile Indian tribe. According to tribe’s custom they had to pass an intelligence test, or die.
      The chieftain showed 5 headbands – 2 red and 3 white. The 3 men were blindfolded and positioned one after another, face to back. The chief put a headband on each of their heads, hid two remaining headbands, and removed their blindfolds. So the third man could see the headbands on the two men in front of him, the second man could see the headband on the first, and the first could not see any headbands at all.
      According to the rules any one of the three men could speak first and try to guess his headband color. And if he guessed correctly – they passed the test and could go free, if not – they failed. It so happened that all 3 Palefaces were prominent logicians from a nearby academy. So after a few moments of silence, the first man in the line said: “My headband is …”.
      What color was his head band? Why?

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      ravi Expert Interview Puzzles.
      • 1,642.3K views
      • 1 answers
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    • MASTERS OF LOGIC PUZZLES (HATS)

      After losing the “Spot on the Forehead” contest, the two defeated Puzzle Masters complained that the winner had made a slight pause before raising his hand, thus derailing their deductive reasoning train of thought. And so the Grand Master vowed to set up a truly fair test to reveal the best logician amongst them.
      He showed the three men 5 hats – two white and three black. Then he turned off the lights in the room and put a hat on each Puzzle Master’s head. After that the old sage hid the remaining two hats, but before he could turn the lights on, one of the Masters, as chance would have it, the winner of the previous contest, announced the color of his hat. And he was right once again.
      What color was his hat? What could have been his reasoning?

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      ravi Expert Interview Puzzles.
      • 1,644.8K views
      • 1 answers
      • 0 votes

    • FIND THE WISEST MAN

      Three Masters of Logic wanted to find out who was the wisest amongst them. So they turned to their Grand Master, asking to resolve their dispute.
      “Easy,” the old sage said. “I will blindfold you and paint either red, or blue dot on each man’s forehead. When I take your blindfolds off, if you see at least one red dot, raise your hand. The one, who guesses the color of the dot on his forehead first, wins.”
      And so it was said, and so it was done. The Grand Master blindfolded the three contestants and painted red dots on every one. When he took their blindfolds off, all three men raised their hands as the rules required, and sat in silence pondering. Finally, one of them said: “I have a red dot on my forehead.”
      How did he guess?

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      ravi Expert Puzzles.
      • 1,641.9K views
      • 2 answers
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