Answer:
If I have it, I don't share it. If I share it, I don't have it. What is it?
I saw a strange creature. Long, hard, and straight, thrusting into a round, dark opening. Preparing to discharge its load of lives. Puffing and squealing noises accompanied it, then a final screech as it slowed and stopped.
Don't do this in the shallow end.
I have legs but never walk, I may have flowers but no soil, I hold food but never eat.
This is rectangular, hollow and has a lid, and where you’ll find it you might wonder, it is just six feet under. What is it?
I can only be played on a windy day