As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

What is the Surname of Barbie Doll?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

How can a man go eight days without sleep?