Noun
mystery [pl. mysteries]
puzzle [pl. puzzles] , {entertainment}
riddle [pl. riddles]
conundrum [pl. conundrums / conundra]
enigma [pl. enigmas / enigmata] , {educ.}
لغز {تعليم}
poser {professions}
puzzler [pl. puzzlers]
rebus [pl. rebuses]
confusion {entertainment}