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?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

What does this rebus means ?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Move four matchsticks to the below square to form three squares?

What month of the year has 28 days?

What makes this number unique: 8,549,176,320?

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?

You can see three almost identical images below. Can you spot the odd one out from them?

What brings you down but never up?