Prove that twice of ten is the same as twice of eleven.

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

Can you divide the below-given shape into four equal and identical pieces?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?