There is this question from December 2010, with 10 upvotes for removing code golf from being on-topic here. There are also a total of 17 upvotes on posts advocating a separate puzzles/golf sits in this question, also from 2010. The "code golf" Stack Exchange is officially called "Programming Puzzles and Code Golf", making it on topic there.
I haven't seen very many puzzle/golf questions here, but I was reading the FAQ and noticed that this still exists. It's probably a hold over from before the other site was opened.
What kind of questions can I ask here?
Programmers - Stack Exchange is for expert programmers who are interested in conceptual questions on software development.
This can include topics such as:
Algorithm and data structure concepts
Freelancing and business concerns