Answer:
What can hold a car but canβt lift a feather?
What cleans as it gets dirty only to get clean the more you use it?
You fill it and it empties, A metaphor for plenty, Depending on what half you see, It's either full or empty
Thanks for such treasures as Mariachis, enchiladas and habanero!
Tomorrow's yesterday. Yesterday's tomorrow. What is it?
I am a room that has a roof but no walls. What am I?