Answer:
What is the freedom of birds and the pen of old men?
What's as small as a mouse but guards a house like a lion?
The more of it there is, the less you see.
What can touch someone once and last them a life time?
The man who made it didn't need it. The man who bought it didn't use it. The man who used it didn't want it.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.