Answer:
It happens when something has been cut with H2O.
What is yellow, looks like the moon and has seeds?
What makes a loud noise when changing its jacket, becomes larger but weighs less?
As I walked along the path I saw something with four fingers and one thumb, but it was not flesh, fish, bone or fowl.
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.
I can only be played on a windy day