The Riddler is a fictional character appearing in American comic books published by DC Comics, commonly as an adversary of the superhero Batman. Created by Bill Finger and Dick Sprang, he first appeared in Detective Comics #140 (October 1948).
The Riddler is a criminal mastermind with a penchant for puzzles and riddles. He often leaves clues for Batman to solve, challenging him to a battle of wits. The Riddler’s motives vary, but he typically seeks to prove his intellectual superiority or gain notoriety for his crimes.