Identify the hidden meaning behind this picture?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

How can you take 2 from 5 and leave 4?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

Can you write down eight eights so that they add up to one thousand?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

I look at you, you look at me I raise my right, you raise your left. What am I?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

How many letters are in the alphabet?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?