There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

I have branches, but no fruit, trunk or leaves. What am I?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

If an electric train is travelling south, then which way is the smoke going?

Which alphabet letter is a question?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

On a magical land of Mexico , all the animal in the land are rational.

There are 10 tigers and one goat.
Tiger can eat goat but since it's a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).

If we leave them for some time then how many goat and tiger will be there , when we come back ?