What did the little lobster get on its math test?

A sphere has three, a circle has two, and a point has zero. What is it?

What do mathematics teachers like to eat?

What do you call two math friends?

What arithmetic symbol can we place between 2 and 3 to make a number greater than 2 but less than 3?

What table has not a leg to stand on?

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 your mysteries, But there still much of them to find. What are they?