what does the below rebus means?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

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?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

What word is pronounced the same if you take away four of its five letters?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?