Hi TM, I'm doing it in second semester, so haven't done much more than read a bit of the text book. Those who've been here before seem to think it's reasonably easy, but also interesting, so not to be despised.
As for errors in questions, if you wanted the forum to help you'd have to specify what you consider to be errors, and why you consider them to be errors. In fact that's what you need to do when asking about anything. Maybe set yourself up a kind of "smart questions" template, and make sure each of your "question requirements" is met before asking.
Depending on who the lecturer is, (and few aren't helpful) the best way to clear up errors in assignment questions is through them. They then deal with it if you're right. Sometimes what they do is leave the offending question out of the marking, for instance.
Ah me! The good old days. In the good old days of two years ago assignments weren't survival missions, they were mind exercises. Not all questions were marked because the marks weren't the point of the assignments, knowledge was.... These yearmarks are a useful survival aid, but I actually hate them...