Answer:
I'm a mammal that can fly and I sleep hanging upside down. What am I?
A spent round or a slimy critter.
What is that which, while it lives, constantly changes its habit, that is buried before it is dead, and whose tomb is valued wherever it is found?
I have eight to spare and am covered with hair.
Slithery critters with a taste for dirt.
Give it food and it will live, give it water and it will die.