Answer:
The warmer I am the fresher I am.
I cannot be burned in fire or drowned in water. What am I?
I start with an E end with an E and have a letter in me.
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What am I?
I hide but my head is outside. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?