rebus Synonyms

visual wordplay mindboggler visual pun tough nut to crack chiller brainteaser whodunit brain-teaser thriller twister teaser subtlety stumper stickler sphinx awkward problem brain-twister pictogram puzzle symbol riddle symbolic puzzle image puzzle word-and-picture puzzle letter-and-picture puzzle visual riddle visual puzzle picture riddle pictorial riddle pictorial puzzle picture puzzle word puzzle braintwister secret secrecy rune enigma difficulty cryptogram crux conundrum charade chaos case bewilderment argument anagram ambiguity affair abstrusity grabber inscrutability