Answer:
I run up and down the stairs without moving
What goes all around the world but never leaves its corner?
I have skin, more eyes than one. I can be very nice when I am done. What am I?
In the sun I like to play; in the rain I goes away; walk or run I always follow; in the mud I always wallow.
Born of sorrow, grows with age, you need a lot to be a sage. What is it?
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.