I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

The more it dries, the wetter it becomes. Can you tell what it is?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Which is heavier: a ton of bricks or a ton of feathers?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

Can you solve the maths in the below-given picture equation?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

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.

Why Aeroplane windows are round?