Answer:
I run up and down the stairs without moving. What am I?
I build up castles. I tear down mountains. I make some men blind, but I help others to see. What am I?
I have hands but do not hold, teeth but do not bite. Feet I have but they are cold, eyes I have but without sight. What am I?
I am Invisible Man's drink at snack time
I am gentle enough to soothe your skin, light enough to fly in the sky, strong enough to crack rocks. What am I?
I am always hungry, I must always be fed. The finger I lick will soon turn red. What am I?