Answer:
I start in little but I end in full you'll find me in half and complete.
The Titanic is still here.
I am always around you but often forgotten. I am pure and clean most time but occasionally rotten.
I can be entertaining until you realize some pieces have been lost.
I am the kind of dog that chases anything red.
A man goes out in heavy rain with nothing to protect him from it. His hair doesn't get wet. How does he do that?