I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Can you replace the question mark with the correct number in the below table sequence?

Birbal was jester, counsellor, and fool to the great Moghul emperor, Akbar.
The villagers loved to talk of Birbal's wisdom and cleverness,
and the emperor loved to try to outsmart him.
One day Akbar (emperor) drew a line across the floor.
"Birbal," he ordered, "you must make this line shorter, but you cannot erase any bit of it."
Everyone present thought the emperor had finally outsmarted Birbal.
It was clearly an impossible task.
Yet within moments the emperor and everyone else present had to agree that Birbal had made the line shorter without erasing any of it.
How could this be?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What country can make you shiver?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

If eleven plus two equals one, what does nine plus five equal?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99