A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

What do you think with the below Picture ?

What has hands, but can’t clap?

A king sentenced a man to the death sentence for some crime he had committed. Known for his kindness, the king told the culprit that he had a choice to die in a way he decides.

The culprit was clever and said something that saved him from death. What method do you think he must have chosen for his death?

What number do you get when you multiply all of the numbers on a telephone's number pad?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

How many letters are in the alphabet?

Which letter of the alphabet has the most water?

What can you catch but never throw?