Which tank will fill first?

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

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

It belongs to you, but other people use it more than you do. What is it?

Complete the following series. It.s very logical:

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

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

A guy in his thirties is found dead in a forest. The shocking thing about the body is that he is wearing his swimming trunks snorkel and a facemask.

For your information, the nearest lake is some 10 miles away and the sea is hundreds of miles away.

How did he die then?

Give it food and it will live; give it water and it will die.

The more of this there is, the less you see. What is it?