What does does this rebus picture means ?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

It is always ahead of me yet I can never see it. What is it?

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.

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

What number when divided in half becomes zero?

Who are the happiest people in IPL match?

If eleven plus two equals one, what does nine plus five equal?

Find the missing number in the sequence below:

A wealthy man lives alone in a small cottage. Being partially handicapped he had everything delivered to his cottage. The mailman was delivering a letter one Thursday when he noticed that the front door was ajar. Through the opening he could see the man's body lying in a pool of dried blood. When a police officer arrived he surveyed the scene. On the porch were two bottles of warm milk, Monday's newspaper, a catalog, flyers, and unopened mail. The police officer suspects it was foul play. Who does he suspect and why?