Answer:
What is it that given one, you’ll have either two or none?
Its title means book.
What can burn the eyes, sting the mouth, yet be consumed?
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
George, Helen, and Steve are drinking coffee. Bert, Karen, and Dave are drinking soda. Is Elizabeth drinking coffee or soda?
I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.