Answer:
The day is their night and the night is their day, when I shout and they shout back I run away.
It's what light turns into in the night
A precious gift, yet it has no end, no beginning, and nothing in the middle.
What gets bigger the more you take away from 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?
When is it bad luck to see a black cat?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?