All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

Can you count the number of triangles in the picture below?

What does this simple rebus mean?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

Find the smallest sentence with all the English alphabet.

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

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

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

Can you start the fire using two pieces of wood?