Nice, but way too hard for me. But how does one get an old quiz to appear among the most recent ones? I have sometimes made an edit and re-submitted, but it does not re-appear as an "Updated" quiz on the most recent page.
Thanks. There is a blog or comment about this somewhere on the site. I believe it appears on the nature of the change (e.g. addition/deletion of questions vs. spelling corrections). I think there is also a certain amount of time (weeks/months?) which needs to pass before an updated quiz can appear on the "Most Recent" list. This avoids the issue whereby quizzes can be regularly updated just to ensure they stay on the list.