Answer:
I am made by nature soft as silk; A puffy cloud white as milk; Snow tops this tropical crop; The dirtiest part of a mop.
I walk on 4 legs in the morning, 2 legs at noon, and 3 legs at night. What am I?
What has a ring but no finger?
What is made of wood, but can't be sawed?
You bind me and I walk. You loosen me and I stop. What am I?
What never gets any wetter no matter how hard it rains?