Answer:
You're currently trying to solve one
A squiggly line tells you when you've done it wrong
What comes in many varieties and can't be seen or touched, but it often makes you move?
This is meat from the upper part of a pig's leg salted and dried or smoked, often enjoyed in a sandwich.
What is something you will never see again?
Break me and I am better immediately set and harder to be broken again.