Answer:
A house with two occupants, sometimes one, rarely three. Break the walls, eat the boarders, then throw away me.
Often held but never touched. Always wet but never rusts. Often bits but seldom bit. To use it well you must have wit.
If you drop me I'm sure to crack. But give me a smile and I'll always smile back.
When it comes in, From sea to shore, Twenty paces you'll see, No less, no more.
What type of paper can you neither read nor write on?
I can only be played on a windy day