If you were chased by a hippo...
... would you rather have the powers of Batman or Superman? That's an interesting question. And probably not what you expected. But I'm sure there would be a lot to talk about it no matter which answers you'd choose.
Questions are funny things. They are good conversation starters and can keep any conversation going on. And it doesn't have to be as obscure as my example. Just simple things can ignite a meaningful conversation. You just need to keep asking them.