Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

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 ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

What do you see in the image below

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?