Can you find out the missing number in the grid?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

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

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

Replace the question mark with the number below given a simple math problem.

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

How can you leave a room with two legs and return with six legs?