Answer:
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?
In all the world, none can compare, I am a tiny weaver; my deadly cloth so silky and fair. What am I?
I am a room that has a roof but no walls. What am I?
Draw fire or fill me; I'm still empty.
I am a pretty one, fluttering in the pale blue sky. Delicate, fragile on the wing, indeed I am a pretty thing. What am I?
If all Wibbles are Criggles, all Borkins are Kwumblins, no Hoggles are Borkins, and all Criggles are Borkins, is it true that all Borkins are Criggles?