Ahah- That'd be an instantaneous way to grab Avispa's interest. Either saying a puzzle she can't solve or daring Avispa to solve it because it's really hard. She's never met a puzzle she can't solve; never ever.

Skulltalk it is! Skulls are fascinating, I tell you, utterly fascinating. Everything about them is just... puzzling.

And that's not just a yes regarding CR, that's a hell yes.