black and white vs folio

black and white and folio both are nouns.

Word	Noun	Adjective	Verb	Adverb
black and white	Yes	Yes	No	No
folio	Yes	No	No	No

black and white (noun)	folio (noun)
a black-and-white photograph or slide	a book (or manuscript) consisting of large sheets of paper folded in the middle to make two leaves or four pages
communication by means of written symbols (either printed or handwritten)	a sheet of any written or printed material (especially in a manuscript or book)
	the system of numbering pages

black and white (adjective)	folio (adjective)
not having or not capable of producing colors