Comment by digdugdirk

I don't understand why you're getting downvoted? Of course an LLM will return the answer to a widely known and commonly cited riddle that exists because of the far more rigid societal gender norms 50 years ago?

LLMs are just statistics based on vibes. Switching the gender of the character in the beginning of the story, but keeping all else identical is going to be a huge signal into the noise, and that response is going to be wildly likely to occur.