Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

You need to move three matchsticks to form three squares. Can you do it?

Make a sentence consisting of three words that have the whole alphabet.

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

You can see three almost identical images below. Can you spot the odd one out from them?

Consider this: Arnold Schwarzenegger has a big one. Michael J. Fox has a small one. Prince doesn’t have one. The Pope has one but never uses it. Bill Clinton has one and uses it all the time. What is it?

I travel all around the world but always stay in the corner. What am I?

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?