What always comes into a house through the keyhole?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

Why is it very easy to weigh a fish?

Can you identify the hidden rebus in the image below?

What breaks yet never falls, and what falls yet never breaks?

Why Wine Glass Stem is so long?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Find the hidden tiger in the given optical illusion ?

Name a key which is hardest to turn.