Answer:
I have roots nobody sees. I am taller than trees. Up up I go but I never grow.
Whoever makes it tells it not. Whoever takes it knows it not. Whoever knows it wants it not
I help you carry your books.
I'm not really more than holes tied to more holes; I'm strong as good steel, though not as stiff as a pole.
In all the world none can compare I am a tiny weaver my deadly cloth so silky and fair.
What did the piece of wood say when he saw the screwdriver and screws approaching?