Answer:
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.
They took me from my mother's side where I was bravely bred and when to age I did become they did cut off my head. They gave to me some diet drink that often made me mad but it made peace between two kings and made two lovers glad.
What is so delicate that saying its name breaks it?
Sometimes I annoy you, sometimes you can't live without me. But no matter how hard you try, you can't destroy me. What am I?
I am a five letter word. If you remove my first letter I am a form of energy. Remove my first two and I am needed to live. Scramble the last three and you can drink me. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?