Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

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

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

What does man love more than life, and hate more than death or mortal strife; that which satisfied men want; the poor have, and the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

There were five men at church, and it started raining while they were outside. The four that ran still got wet, but the one that was still stayed completely dry. Why did he stay dry?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Buy me, smell me or deliver me, I do not change.

Who am I?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

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