Which means I need questions, and answers, that fit into the story, and can stand more development.
Fortunately, or unfortunately, I have one already -- the Iron Hans figure wants to know how the pool that turned our hero's hair gold when he was a boy can be properly protected, and so free him from the spell that binds him to the woods.
Then, using that, I would need to tie in the other questions and answers to the story similarly. the one advantage is that I do not have to use one to dispose of the villain at the end, leaving him stuck operating a ferry, which is traditional for many versions -- but not the one I'm using. the Norwegian tales have me thinking about another, about a dry well. There's the question, but then I need an answer. . . .
Or perhaps I don't give him three questions. There are a lot of things hard to translate from fairy talse to fully worked out novels, and the fairy tales' habit of trebling things is one of them.