Answer:
They are two brothers. However much they run, they do not reach each other.
A cloud was my mother, the wind is my father, my son is the cool stream, and my daughter is the fruit of the land. A rainbow is my bed, the earth my final resting place, and I'm the torment of man.
Come up and we go, Go down and we stay.
What has one hand longer than the other, and goes on all day and night?
A beautiful succession of sounds.
Cycle Cycle Cycle.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?