Project chat when I’m stuck

I’m pretty new. I ask questions in the chat when I’m stuck but I have yet to see one answered, even days later.

What I don’t know is whether I am supposed to skip the task if something is unclear (even if I’ve put in a good chunk of time) or submit it with my best guess. I don’t see most questions getting answered, at least not the same day, so I don’t think it’s just me. What do you all do?