Answer:
Without this, H2O would just be 2O
What is something you can give away as many times you want without ever losing it?
What cannot talk but will always reply when spoken to?
A famous home without color and with wings.
In the middle of night, I surround the gong. In the middle of sight, I end the song
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.