Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Prove that twice of ten is the same as twice of eleven.

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

Can you find out which number multiplied by itself will give the output as 12345678987654321?