Answer:
Humans have two that shrink in the light and expand in the dark
It's shorter than the rest, but when you're happy, you raise it up like it's the best. What is it?
What gives life and love, and is there till they die? What can hide you and find you, heal you and feed you but should never give up on you?
What can speak without a tongue and listen without ears?
He's small but he can climb a tower.
How did the farmer find his wife?