Answer:
What's made of water but if you put it into water it will die?
I am the kind of soda you must not drink.
What is always in front of you but can't be seen?
What's full of holes but still holds water?
I am a ship that can be made to ride the greatest waves. I am not built by objects, but built by minds. What am I?
No matter how little or how much you use me, you change me every month.