Answer:
What gets sharper the more you use it?
I am constantly overlooked by everyone but everyone has me.
Wind and cord combine, buzzing in the box. In all this we find, though to some the use is lost. What am I?
I go up but never come down. What am I?
Tear me off and scratch my head, what once was red is black instead. What am I?
What did the grape do when he got stepped on?