Answer:
I have a head, tail, but no arms and legs. What am I?
I help engines spin and pants stay up. What am I?
I am the kind of an ant that's good at math. What am I?
What invention lets you look right through a wall?
lighter than feather and softer than silk yet the strongest man in the world cannot hold me for more than a few minutes.
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.