Not sure what you consider quizzes here. Check the walkthrough, page 13 and before, it tells you everything you need to know. It's correct most of the time :) If you wanna catch 'em all I'd recommend checking the walkthrough regularly anyway and going back if you messed something up. That's how I played. It reduces immersion and is a spoiler minefield but until I'm done with my mod, that's the best we have. Still, I enjoyed it very much this way :D