The Riddler: The Criminal Mastermind of DC Comics

The Riddler is a DC Comics supervillain who first appeared in "Detective Comics" #140 in 1948. He is a criminal mastermind known for his obsession with riddles and puzzles, and his penchant for challenging Batman and Robin to solve them.

The Riddler's real name is Edward Nigma, and he was once a private investigator who became obsessed with the thrill of solving mysteries. He turned to a life of crime as the Riddler, using his intelligence and cunning to commit crimes and challenge Batman and Robin to figure out how he did it.

The Riddler's modus operandi is to commit crimes and leave behind clues in the form of riddles, which Batman and Robin must decipher to solve the case. He often uses elaborate schemes and traps to confound his enemies and prove his intellectual superiority. Despite his criminal activities, the Riddler is a charismatic and charming character who has become a fan favorite among DC Comics fans.