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 ?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

There are forty elephants and they have forty-fore heads. How can this be possible?

Using eight eights and addition only, can you make 1000?

Why is Saturday stronger than Monday?

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?