What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Who can jump higher than a Mountain?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

What does it mean?

If two's company, and three's a crowd, then whats four and five ?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den