What does below rebus means ?

Replace the question mark with the correct number in below Picture:

Move four matchsticks to the below square to form three squares?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

I have branches, but no fruit, trunk or leaves. What am I?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

What country can make you shiver?