Answer:
I'm a bacteria that causes typhoid What's my name ?
I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go.
A morbidlyยญ-named body of water
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.
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?
Both old people and owls are said to be possessing this trait