@Ghostdevil the math is really basic stuff, the agricultural stuff is a bit more complicated, but they did say he helped out on a farm as a kid, so it's not too hard to imagine he'd understand a bit of the basics, and as far as architecture, they're pretty much only building really simple houses I think, which isn't that difficult
My biggest question is why didn't he try to trade something to the gryphon for the ownership of language blessing, considering the gryphon said it was useless for it because of it's vocal cords. Or did I miss something and blessings can't be given permanently?