Answer:
What do you throw out to use and take in when you're done?
You use a knife to slice my head. And weep beside me when I am dead.
I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.
Useful tool for who in darkness dwell. Within you, corrupting like a deadly spell.
Voiceless it cries, wingless flutters, toothless bites, mouthless mutters.
I can only be played on a windy day
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?