Answer:
I am easy to waste. I am unstoppable. What am I?
Flat as a leaf, round as a ring; have two eyes, can't see a thing. What am I?
I sit in a corner while travelling around the world.
Lighter than feather and softer than silk, yet the strongest man in the world cannot hold me for more than a few minutes. What am I?
There is one in a minute two in a moment and none in a thousand years. What is it?
What did the piece of wood say when he saw the screwdriver and screws approaching?