to confuse (a person)

confuse

to make (a person) feel uncertain, puzzled etc

bewilder someone

to affect (a person, animal) with paralysis; to make (a person, animal) helpless

immobilize

a question or problem that is difficult to understand or answer; a game, toy etc designed to test a person's knowledge, skill or patience; to cause (a person) to become confused, worried (about the solution to a problem)

baffle, confuse

to make (a person) unconscious by a blow, especially on the head; to shock or surprise (a person)

shock