Answer:
My first is equality; my second is inferiority; my whole is superiority.
Round as an apple, deep as a cup, and all the kings' horses can't fill it up. What is it?
A man went to the hardware store to buy items for his house. 1 would cost $.25. 12 would cost $.50. 122 would cost $.75. When he left the store he had spent $.75, what did he buy?
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has hands; lacks a head but has a face.
You use it between your head and your toes, the more it works the thinner it grows.