Answer:
Fuels backyard get-togethers
What is often returned but is never borrowed?
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around.
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has hands; lacks a head but has a face.
Up on high I wave away but not a word can I say.
I can only be played on a windy day
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?