Answer:
What is it that you must give before you can keep it
We traveled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. How can that be possible?
What is at the end of every rainbow?
You'll have to consult an optometrist if you want to improve this.
What is something you can give away as many times you want without ever losing it?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.