Answer:
What is always on its way but never arrives?
What has one head, one foot, and four legs?
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.
White and thin, red within, with a nail at the end. What is it?
Where can you find roads without cars, forests without trees and cities without houses?
The sun bakes them, The hand breaks them, The foot treads on them, And the mouth tastes them. What are they?