Answer:
The little pink nub that helps rectify mistakes.
Sends paper without using the post office.
Round and round I go never stopping in a continuous flow. I hang out with numbers each and every day and nothing ever gets on my way. What am I?
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
Your computer\'s version of white-out.
I am a room that has a roof but no walls. What am I?