Answer:
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?
What is black when it's clean and white when it's dirty?
I sit in a corner while traveling around the world. What am I?
Though not a plant I have leaves. though not a beast I have spine. Though many wouldn't need me I am more valuable than wine.
I can go through glass without breaking it.
What never gets any wetter no matter how hard it rains?