What do you think with the below Picture ?

How can you tell a raw egg from a hard-boiled egg?

Why is Saturday stronger than Monday?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

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

What is the end of everything?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

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

A father is locked up in jail. His wife has gone bankrupt. Their male child has to sell his hotel in order to gain some money. Yet their girl child does not care and is quite happy.

How can someone be so rude?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?