Count the number of triangles in the picture below:

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

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

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

What does this say?

XLR8

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.

John is on an island and there are three crates of fruit that have washed up in front of him. One crate contains only apples. One crate contains only oranges. The other crate contains both apples and oranges.

Each crate is labelled. One reads 'apples', one reads 'oranges', and one reads 'apples and oranges'. He know that NONE of the crates have been labeled correctly - they are all wrong.

If he can only take out and look at just one of the pieces of fruit from just one of the crates, how can he label all of the crates correctly?

How many letters are in the alphabet?

A man comes across a coin that is dated 226 B.C. Can you calculate its worth?

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?