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

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

what does the below rebus means?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

What has no start, end, or centre?