What do you answer even though it never asks you questions?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

What always comes into a house through the keyhole?

If you say my name, I will no longer exist. What am I?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

There is something which you can be arrested for attempting but not for successfully completing.