• Brain Teasers & Puzzles

    Questions Per Page:
    • Meteor Shower

      Can you protect the planets from the meteor shower? Draw nine straight lines through the box below to separate the planets from the meteors. When all the lines have been drawn, each section containing a planet cannot have meteors in it too.

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      Nishant Guru Puzzles.
      • 1,800.1K views
      • 1 answers
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    • The Road Sign

      The how-to-drive manual is being updated and somehow all the road sign definitions got mixed up. The pictures below are actual road signs. The descriptions below are the definitions of the road signs. Can you match them all up correctly?
        • road merges

       

        • airport

       

        • four-way intersection

       

        • stop ahead

       

        • bike lane

       

        • road narrows

       

        • pedestrians

       

        • caution – snowmobile crossing

       

        • grade

       

        • narrow bridge

       

       
        • bump

       

        • caution – deer crossing

       

        • falling rocks

       

        • road enters from right

       

        • divided highway ends

       

        • two-way traffic

       

        • playground

       

        • slippery when wet

       

        • railroad crossing

       

        • traffic signal ahead

       

       

       

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      Nishant Guru Puzzles.
      • 1,801.7K views
      • 1 answers
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    • What did you order?

      Five bachelors who all lived in the same apartment building each ordered an item from the same catalog. Unfortunately, the shippers got confused and each item was delivered to the wrong apartment. Can you determine each man’s full name, what each man ordered and what was actually delivered, and which apartment each man lived in.

      1. Roger, who doesn’t live in an end apartment, ordered the Television set. Tom lived next door to the man who received the dishware.
      2. Mr. Weiseman, who didn’t receive the automotive tools, lives two apartments from the man who ordered the downhill skis and one apartment from Harry.
      3. Ed, whose last name isn’t Smith, lives in apartment #3 but he didn’t receive the automotive tools. Mr. Smith, who doesn’t live in apartment #4, ordered the golf clubs but he received the item that Mr. Campbell ordered, which wasn’t downhill skis.
      4. The bachelor in apartment #1, which isn’t Tom, ordered what Al received. The man in apartment #2, who didn’t receive the golf clubs, lives next door to where what he ordered was delivered.
      5. Mr. Bates didn’t order the downhill skis. The television set was not delivered to Ed’s apartment.
      6. Tom lives in apartment #5.

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      Nishant Guru Puzzles.
      • 1,800.1K views
      • 1 answers
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    • implement isPalindrome(int n) 
      Implement the function boolean isPalindrome (int n);

Which will return true if the bit-wise representation of the integer 
is a palindrome and false otherwise.
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      Mehar Starter Amazon Interview Puzzles.
      • 1,802.0K views
      • 1 answers
      • 1 votes

    • 2nd smallest number from 32 numbers

      You have 32 numbers. What is the least number of comparison needed to find the 2nd smallest out of them?

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      Mehar Starter Interview Puzzles.
      • 1,800.9K views
      • 1 answers
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    • When do you have Rs.60

      You are depositing Rs. 3 in First day and Rs. 3 in Second day in your account. And you are withdrawing Rs. 4 from your account in Third day. You do this repeatedly. When soon do you have Rs. 60?

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      Nishant Guru Math Puzzles.
      • 1,800.6K views
      • 1 answers
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    • Arrange 7 men in alternative height

      There are 7 people numbered as 1 to 7.
      The number denotes their height.
      Arrange them in a line in such a manner so that the line appears in alternative of their heights, I.e. one short then long, again short then long.
      The condition is that, if one by one member(remove 1, then 2, then 3) from the line is omitted, the order of their height remains alternative.

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      Nishant Guru Math Puzzles.
      • 1,800.3K views
      • 1 answers
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    • Four rivers and three temples

      Four rivers and three temples

      All the rivers are magical, moment a worshiper crosses a river with any number of flowers, it becomes double. (For eg 1 flower becomes 2 flowers, 2 become 4 and so on).

      How many minimum number of flowers a worshiper needs 2 carry from beginning such that he offers equal number of flowers in all the three temples, and he is left with zero flowers at the end of fourth river.

      Solve this ??

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      Nishant Guru Math Puzzles.
      • 1,800.7K views
      • 2 answers
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    • How many children on school ground ?

      There are some children on a school ground, a square has been drawn and all children are standing on a squares four lines, they are standing with same distance, four children are standing on a four corners. No 16 Is exactly opposite of No 6. How many children are there?

       

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      Nishant Guru Math Puzzles.
      • 1,800.2K views
      • 1 answers
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    • Vessel with water and syrup

      A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup. How much of the mixture must be drawn off and replaced with water so that the mixture may be half water and half syrup?vessel-with-water-and-syrup

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      Nishant Guru Math Puzzles.
      • 1,800.2K views
      • 1 answers
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