Heh, they are more "brain teaser" type questions that flat out factual trivia.
Ok.
Part 1: The 5 levels are the only 5 in the game without a Middle Ring. Check for yourself.
Part 2: Seriously, I don't see exactly HOW you missed this part. The link is that the Green Yoshi plays all 5! As I said before, 19 levels have this trait:
1-1, 2-1, 3-1, 4-1, 5-1, 6-1, 6-8, E1, E2, E3, E4, E5, E6, S1, S2, S3, S4, S5, and S6.
Fine then, next time I'll come up with a more "trivia-like" trivia question.
I don`t suffer from insanity. I enjoy every minute of it.