I think this game is lovely ^^ it's not hard, imo it's morely for kids so there shouldn't be an "IMPOSSIBLE CHALLENGE" factor. I like the trivia questions, and I think the idea is fun. Throwing the scrolls and the way they react so happily lol.
Maybe should have added a few special levels, levels that are quite different from another. A boss level perhaps - I know it sounds weird but hear me out. Maybe a big ugly monster that you have to continuously throw rocks in the mouth of until he spits some guy out that you have to hit with a scroll or.. Something idk just an idea. Every 10 or so levels something cool to keep it spicy and entertaining :)