Answer:
What measures out time. Until in time all is smashed to it?
What stays on the ground but never gets dirty?
What is often returned but is never borrowed?
A girl was ten on her last birthday, and will be twelve on her next birthday. How is this possible?
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.