Answer:
It increases and decreases yet no one see it. It is not a fire and yet it can be quenched.
What do you do with a dead chemist?
The cozy place Dracula rests.
What was was, before was was was?
What does an envelope say when you lick it?
What language does a billboard speak?
Funny
Animal
Difficult
Easy
Food
Kids
Logic
What am I?