What question can you never answer yes to?

The centre of the third figure is empty. What digit should fit inside?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

There are three boxes. One is labeled "APPLES" another is labeled "ORANGES". The last one is labeled "APPLES AND ORANGES". You know that each is labeled incorrectly. You may ask me to pick one fruit from one box which you choose.

How can you label the boxes correctly?

What is so fragile that saying its name breaks it?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?