What's the only room from which no one can enter or leave

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?

There is something which is always coming but never arrives?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

Can you fill the blank with the correct number?

6 30 870 756030 _____

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

What Adam and Eve do not have but the rest of the people have?

Find the hidden tiger in the given optical illusion ?