The Riddler possesses extreme originality in decoding and formulating puzzles of all kinds. His deductive ability perfused his role of private detective when he was reformed, during which he was shown to have investigative skills that rival those of the Dark Knight.
Like most of Batman's enemies (and Batman himself) The Riddler has no superhuman abilities, but is a highly cunning criminal strategist. He is not especially talented in fisticuffs (although his endurance has grown from having to engage in them over the years), but sometimes employs weaponry that exploits his gimmick, such as exploding jigsaw pieces, his infamous question mark cane, known to house a wide variety of technological devices and weapons, and question mark shaped pistols. He is shown to be skilled with engineering and technology, confronting Batman and Robin with unique and elaborate deathtraps. He is also well known for being Batman's most intelligent adversary.