Answer:
Only one color, but not one size. Stuck at the bottom, yet easily flies. Present in sun, but not in rain; doing no harm, and feeling no pain. What am I?
With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?
I build up castles. I tear down mountains. I make some men blind, but I help others to see. What am I?
Why are there no living cats on Mars?
The more of this there is the less you see. What is it?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.