puzzle vs confuse

puzzle is a noun but confuse is not a noun.

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

As verbs, confuse is a hypernym of puzzle; that is, confuse is a word with a broader meaning than puzzle:

Other hypernyms of puzzle include bedevil, befuddle, confound, discombobulate, fox, fuddle, throw.

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

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