There are numerous questions about think-different that don't put the level information in the question (nor is it in the answer) which I feels limits the amount of views a question might get. In order for that question to be found through your favourite search engine, someone would need to copy+paste the puzzle, as opposed to someone writing "solve think different level 10" (I'm guessing, I don't know what level it is).
Arguably these things aren't needed, but it would help search results, and would certainly be a better question (i.e. more researched) if the OP lists several things they thought of (being a bad question doesn't make it off-topic though)
Was my flag correctly declined? How should have I handled this situation, and how should I handle it in the future where the questions lacks (imo) important details. I'm far more accustomed to Stack Overflow, where "i has problem give me the code" questions are off-topic, but is this kind of question on-topic here? e.g.
3, 4, 5, x, 7
what's the answer?
(since the question is tagged think-different it's not necessarily to mention the game name, and mentioning "I tried several things" doesn't mean anything)