What does this simple rebus mean?

What is both possible and impossible at the same time?

If a wheel has 54 spokes, how many spaces are there between the spokes?

Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

What's the only room from which no one can enter or leave

In a kingdom, King George did not allow any citizen to visit the world outside. Also, only a person with proper paperwork was allowed to enter or he was sent back. A wooden bridge was what connected the kingdom to the world. The king had appointed a sharpshooter who would check the every five minutes on the bridge to check. After checking, he would go back to his hut and return exactly after five minutes again. The bridge took 9 minutes to cross.

A merchant was able to escape the kingdom without harming the shooter. How?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.