to fill (a person) with great surprise or wonder

surprise

to surprise (a person) greatly

surprise

surprise (a person) greatly

amaze

to be alarmed and unwilling

astonish

to fill (a person) with confusion

confuse

to astonish (a person)

astound, confuse

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