Answer:
Adored by few, feared and hated by many. Mistress of the entire universal reason, master in the art of numbers. Some may have solved many of my mysteries, but there are still many of them to find. What am I?
I am bought by the yard but worn by the foot
I march before armies a thousand salute me. My fall can bring victory but no one would shoot me. The wind is my lover one-legged am I. Name me and see me at home in the sky.
I go into the water black and come out red. What am I?
What is light as a feather but even the strongest man cannot hold it for more than a few minutes?
When is it bad luck to see a black cat?