(of a question or problem) be too hard for; baffle.
education chiefs were stumped by some of the exam questions
informal：obfuscateinformal：baffleperplexpuzzleconfuseconfoundbewildermystifynonplusdefeatbe too much forput at a lossbring up shortflummoxfoxbe all Greek tothrowfloordiscombobulateinformal：wildergravelmaze
