Answer:
I walked and walked and at last I got it. I didn't want it. So I stopped and looked for it. When I found it, I threw it away.
I am black when I am clean and white when I am dirty?
Be sure to shout for its answers are weak, but there is no language it cannot speak.
A time when they're green. A time when they're brown. But both of these times, cause me to frown. But just in between, for a very short while. They're perfect and yellow. And cause me to smile.
Lighter than what I am made of, More of me is hidden Than is seen.
What did the piece of wood say when he saw the screwdriver and screws approaching?