Answer:
There are millions of me. I am very small but when moving fast I am deadly.
What is it something that you always have but you always leave behind?
A house with two occupants, sometimes one, rarely three. Break the walls, eat the boarders, then throw away me.
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.
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.
How can you add eight 6s together so that the total adds up to 750?