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?

The Judge knows that Alamgir was killed by his girlfriend Jasline, but the judge is unsure whether to punish her. Why?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

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?

Can you find out who is the kidnapper in below Picture and why, Explain ?

Can you place six X (crosses) in below board without making three in a row in any way ?

Guess the hidden movie name?

Buy me, smell me or deliver me, I do not change.

Who am I?