Below rebus represent famous DiCaprio movie. Can you name it?

I make two people out of one. What am I?

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 Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

I have an eye but still cannot see.

Who am I?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Which word does the below Plexor means ?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.