10+10 and 11+11 can give you the same answer.

Explain how?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

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

Take away the whole and some still remain. What is it?

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

Akbar summoned Birbal out of anger.
He told him that he will have to face death.
He asked him to make a statement and if the statement is true he will be buried alive and if the statement is false, he will be thrown at lions.
After hearing Birbal’s statement, Akbar could do nothing but smile.
He gave him 5 gold bars and let him go.

What did Birbal say?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?

No matter how little or how much you use me, you change me every month. What am I?

Move three sticks of the spiral below to form a square.