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?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

What has one eye, but can’t see?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

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

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

Explain how?

What does man love more than life, and hate more than death or mortal strife; that which satisfied men want; the poor have, and the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

By using 'because' continuously three times, can you make an English statement ?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?