what does the below rebus means?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

John bought 150 chocolates but he misplaced some of them. His Father asked him how many chocolates were misplaced.
He gave the following answer to him:
If you count in pairs, one remains
If you count in threes, two remain
If you count in fours, three remain
If you count in fives, four remain
If you count in sixes, five remain
If you count in sevens, no chocolate remains.

Can you analyze the statements and tell us how many chocolates were lost?

Can you find out the remainder when 3^300 is divided by 5?

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

You need to arrange three 7 and mathematical symbols to form number 1?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Where do fish keep their money?

There are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?