perplex, vex, get, puzzle, mystify, baffle, beat, pose, bewilder, flummox, stupefy, nonplus, gravel, amaze, dumbfound

be a mystery or bewildering to; "This beats me!"; "Got me--I don't know the answer!"; "a vexing problem"

• stump, mix up — cause to be perplexed or confounded
• stagger — astound or overwhelm
• riddle — set a riddle
• elude, escape — be incomprehensible to; escape understanding by

• confuse, throw, fox, befuddle, fuddle, bedevil, confound, discombobulate — be confusing or perplexing to; cause to be unable to think clearly