Answer:
They are two brothers. However much they run, they do not reach each other.
What hangs in the sky by day but at night goes away?
Without what would everyone lose their head?
I have a pet, his body is full of coins
I am not alive, though I never die, to no one I've ever told a lie, today I can be god's warrior, and serve him with no horror, but tomorrow I might be devil's knight, for I am what ends the light.
How did the farmer find his wife?