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 ?




Similar Riddles

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

I Speak only the Truth

Asked by Neha on 15 May 2023


Can you arrange the six given marbles in a manner that each one of them is touching all four marbles of different colours?

Arrange the Marbles

Asked by Neha on 18 Aug 2026

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

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Replace the question mark with the correct number in the below-given picture?

Number Riddle

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You are trapped into a death trap by the famous jigsaw killer. As usual, a screen flashes in front of you and explains you the trap game. There are 100 pearls kept in a bowl in front of you and an empty bowl. Among the 100 pearls, 50 are white and 50 are black. You can divide them as you like into the two bowls. Once you are done, you will pull a lever, which will turn the room pitch black. The bowls will move and shuffle around. In the dark, you have to pick up one pearl from any bowl. Once you do that, the room will flood with lights again. If the peral you have in your hand is white, you will be allowed to live, but if the pearl you picked is black, the room will be filled with poisonous gas and you will die. How will divide the pearls to increase your chances of survival?

Asked by Neha on 03 Sep 2024

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

Asked by Neha on 31 Jul 2023


By what process could you make a 'Tea-Table' into food?

Asked by Neha on 16 Aug 2023

Which point will the car reach to go out?

Car Ring Ride

Asked by Neha on 05 Nov 2024

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Brick Optical Illusion

Asked by Neha on 05 Jan 2025


In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

Brilliant students Riddle

Asked by Neha on 02 Jul 2026

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Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.