system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman] Is The Riddler actually smart?

Clearly, The Riddler thinks he's way smarter than he actually is. But beyond that, he appears to just be not particularly smart, in absolute terms. Example: He creates puzzles with discernible solutions and acts like they're literally impossible, OR he pretends that stupid puns are brilliant riddles. He's seems to just be a crazy person who is obsessed with cheating (either cheating to win or accusing his opponent of cheating when they win).

Does he have actual impressive feats of intelligence, (beyond the cunning to commit crimes and create his various deathtraps and such)?
gpt
The riddler is an extremely gifted person with many great talents. He's definitely several steps above every normal human and really only pales in comparison to ultra-geniuses like Lex Luthor.  

However, his biggest problem is that he CAN'T create an unsolvable puzzle. His mind will not let him cheat like that. It's beneath him to trick someone into a situation they can't figure their way out of. Yes, he often gloats that people are too stupid to figure out his tricks and riddles, but the solution is always there. He must prove that Batman is a dunce once and for all by confirming he can't detective his way out of every situation. Riddler is PERFECTLY capable of trapping, tricking and killing most everyone in Gotham, but he never will.

There's also the often discussed theory that he wants to be caught. He wants nothing more than the attention his escapades bring him. Either as a psychological need, a fetish or the boredom of a mind incapable of doing anything else. (Like anonymous does it for the lulz, he does it for the Bat's eventual fists)