Identify the hidden meaning behind this picture?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

Replace the question mark with the correct number in the below-given picture?

Can you decipher the below rebus?

PBLUESAISNUERSES

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Who has married many women but was never married?

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.

There is something which you can be arrested for attempting but not for successfully completing.

Can you solve below mathematical equation?

2^1234 - 2^1233

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?