Answer:
I climb higher when hot, But beware my rage, Iโll kill with a breath, If I can escape my cage
This is needed both for courage and hardcover books.
Always old, sometimes new. Never sad, sometimes blue. Never empty, sometimes full. Never pushes, always pulls.
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has handsอพ lacks a head but has a face.
I am the greatest teacher out of them all, but alas in the end I kill my pupils.
What did the piece of wood say when he saw the screwdriver and screws approaching?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?