Answer:
What can you catch but not throw?
Glittering points that downward thrust. Sparkling spears that never rust. What am I?
I have a little pool with two layers of wall around it. One white and soft and the other dark and hard. What am I?
I am an English word that is as long as I am valued.
I am not a toy though many use me for pleasure. I have a butt but I cannot poo.
Give it food and it will live, give it water and it will die.