Answer:
I go around in circles, But always straight ahead Never complain, No matter where I am led.
Man's most important invention.
I am neither a guest nor a trespasser in this place. I belong that belongs to me. Where is it?
The more you look at it, The less you see.
What is something you can hold without ever touching?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.