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Mind Teasers : Hard Probability Puzzle

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A primitive village follows a strange custom. They have babies only to have a boy. Whenever a boy is born in a family, they stop having babies and whenever a girl is born, they have a baby again and again till a boy is born.

The probability of having a boy is same as the probability of having a girl. What will be the proportion of boys to girls in the village after some time?

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Mind Teasers : Akbar Birbal Puzzle

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Akbar summoned Birbal out of anger. He told him that he will have to face death. He asked him to make a statement and if the statement is true he will be buried alive and if the statement is false, he will be thrown at lions. After hearing Birbal’s statement, Akbar could do nothing but smile. He gave him 5 gold bars and let him go.

What did Birbal say?

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Mind Teasers : Popular Interview Problem

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I have two rectangular bars.

They have property such that when you light the fire from one end , it will take exactly 60 seconds to get completely burn.
However they do not burn at consistent speed (i.e it might be possible that 40 percent burn in 55 seconds and next 60 percent can burn in 10 seconds).

Problem is : How do you measure 45 seconds ?

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Mind Teasers : Math Picture Brain Teaser

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In the photo attached with this question, you have to place the numbers from 1 to 19 in the circles such that if we add up any side of the triangle, the sum is 17.

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Mind Teasers : Logic Number Sequence Puzzle

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Solve this logic number sequence puzzle by the correct digit
8080 = 6
1357 = 0
2022 = 1
1999 = 3
6666 = ?

By Admin
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Mind Teasers : Spot The Difference Christmas Tree Riddle

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Can you spot 5 differences in two Christmas tree below?

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Mind Teasers : Hard IAS Brain Twister

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An international IQ test is held on knockout terms in November 2013. The final contestants are from Britain and America respectively. Both of them are handed over the final test paper which they have to fill for evaluation. They have to write their names and date on the paper. When the evaluators are handed over the sheets, they find out that both the guys have same name. In no manner can they identify which sheet belongs to whom.

Can you identify the date on which the competition was held?

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Mind Teasers : Ten From Nine Toothpicks Trick Riddle

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If you were asked to pick nine toothpicks and make them ten without breaking any of them, how will you do it?

Mind Teasers : Simple Matchstick Riddle

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You can see that four match sticks have been joined in the given figure to form one square.

Can you form five squares using six matchsticks ?

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Mind Teasers : Hard Chess Puzzle Problem

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Your pieces are white.
You need to win in half a move.

How can you do this ?


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Mind Teasers : How Many Seconds In A Year Riddle

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Without the use of calculation, can you find how many seconds are there in a year ?

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