Answer:
Proof you've done your time in school
This type of corn swells up and bursts into a crisp puff when heated.
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?
If you blow past your destination, you'll have to throw your car into this.
With sharp edged wit and pointed poise. It can settle disputes without making a noise.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?