Who always enjoys poor health?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

81 x 9 = 801. What must you do to make the this equation true?

You can see it everyday, But cannot touch it at will. What is it?

How many times do a clock's hands overlap in a day ?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

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 ?

Why 1729 is a magic number? Answer Logically.

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

What happened when the wheel was invented?