Answer:
By Moon or by Sun I shall be found. Yet I am undone if there's no light around.
I'm very tempting so its said I have a shiny coat of red and my flesh is white beneath. I smell so sweet taste good to eat and help to guard your teeth.
Where I am there is no south, west, nor east, and weather is not fit for man or beast. What am I?
Flat as a leaf round as a ring. I have two eyes but can't see a thing.
I have an eye but cannot see. I am fast but I have no limbs. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.