"Horseisle" is not a commonly recognized term. It's possible it's a specific online community or forum that I'm not familiar with.
Could you please clarify what you mean by "dieters riddle answers on horseisle"?
* Are you asking about riddles related to dieting that are shared on a specific platform?
* Are you asking about the answers to riddles on a platform related to horses?
* Is "Horseisle" a misspelling of something else?
Once you provide more information, I can try to assist you better.