confuse vs puzzle

confuse is not a noun while puzzle is a noun.

Word	Noun	Adjective	Verb	Adverb
confuse	No	No	Yes	No
puzzle	Yes	No	Yes	No

As verbs, puzzle is a hyponym of confuse; that is, puzzle is a word with a more specific, narrower meaning than confuse:

confuse (noun)	puzzle (noun)
	a game that tests your ingenuity
	a particularly baffling problem that is said to have a correct solution

confuse (verb)	puzzle (verb)
make unclear, indistinct, or blurred	be a mystery or bewildering to
mistake one thing for another	be uncertain about; think about without fully understanding or being able to decide
be confusing or perplexing to; cause to be unable to think clearly
assemble without order or sense
cause to feel embarrassment