What always comes into a house through the keyhole?

No matter how little or how much you use me, you change me every month. What am I?

What part of Turkey has the most feathers?

What has many teeth, but cannot bite?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

I always drive my customer away.

Who am I?

Which fur should we be getting from the Lion?

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?