Answer:
I do not contain flesh feather or scales; yet I have fingers and thumbs.
What has a head but never weeps a bed but never sleeps can run but never walks and banks but no money?
Though not a plant I have leaves. though not a beast I have spine. Though many wouldn't need me I am more valuable than wine.
While you were folding a letter you got me. Usually you will do whatever it takes to avoid me but now you can't help but find me.
Born of sorrow, grow with age, you need a lot of me to be a sage. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?