Tricky Problem On Probability

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?




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Two Door Two Guard

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There are seven sisters in a house in a village where there is no electricity or any gadget.

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Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

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I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

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Which is the correct shadow of the bird?

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A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

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Using the clues below, what four numbers am I thinking of?

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One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
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There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

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Amazing Facts

Gambling

In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.