Answer:
I'm tall when I'm young and short when I'm old. What am I?
I produce wool and spit a lot
It's in your hand though you can not feel it. Only you and time can reveal it.
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat and your heart grow cold. I visit the weak, but seldom the bold. What am I?
I am in the middle of water but am not an island.
What did the piece of wood say when he saw the screwdriver and screws approaching?