Bound to be an endless amount floating around the internet somewhere, but isn’t it better to come up with your own? So much more rewarding & bags more fun when they’re right off the top of your head :¬)
Sure, click on any of the topics (such as your topic on this question – “easy to find questions”) and the fluther will list out all the questions that include that as a topic. This method probably won’t yield ALL questions pertaining to that topic, though, as people have to add those topics when they ask a question and they might not necessarily do a good job of it.
Ask a question, and fluther will show you similar ones. If yours is unique – go for it. Also, some questions, especially the Social type, can be re-asked after some time – as new jellies join all the time.