Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Which alphabet letter is a question?

The more you take me, the more you leave me behind.
Who Am I?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Find the missing letter in the last circle logically in the given below picture.

Who can jump higher than a Mountain?

I have Rs.50 and I spend it in the way as below.

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?