Answer:
A squiggly line tells you when you've done it wrong
I am a piece of paper that takes most people 3 or 4 years to get. What am I?
Tear one off and scratch my head, what once was red is black instead!
With sharp edged wit and pointed poise. It can settle disputes without making a noise.
What does someone else have to take before you can get?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.