People make me, save me, change me, raise me. What am I?

Can you find out who is the kidnapper in below Picture and why, Explain ?

What is the next shape from answers A, B, C, and D figure?

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

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

How many Watermelons are there in the below picture?

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.

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Can you spot the hidden girl in the picture below?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?