Replace the question mark with the correct number in the below-given picture?

What breaks yet never falls, and what falls yet never breaks?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

Can you find a rabbit in the given picture?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

I am sure no one can have two things for dinner. what are they?

Guess the hidden movie name?