Answer:
You feel this sensation when you are dehydrated.
You are on an electric train. Which direction will the smoke fly in?
You have it even if there is none.
Proof you've done your time in school
What bank has no money?
Two little holes in the side of a hill. Just as you come to the cherry-red mill.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?