Answer:
I am an instrument capable of making numerous sound but cannot be touched or seen.
A hole in a pole. Though I fill a hole in white I'm used more by the day and less by the night
When you take away the whole from me, there is always some left. What am I?
I am the noise Santa's reindeers make
I am a kind of coat that can only be put on when wet. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.