7) Probably, because Regina had items that were still magical, as shown in the finale.
29) I don’t think that he “wasted” love. I think he needed very powerful magic in order to bring magic back to an entire town, possibly an entire world.
36) He wasn’t a stable boy; he was a shepherd. Shepherds had to know how to fight off wild animals and thieves to protect their sheep. (I’m not just making that up about shepherds to justify it; I’ve actually heard that before in a completely different context.)