Agents for Educational/Brainteaser book?

Hi all,
I'm working on a book of brainteasers, riddles, and lateral thinking questions that would be applicable for game-book enthusiasts, as well as for classroom fun. I'm finding it's hard to find agents who take on this type of work (game books with an edu bent). Does anyone know of any that they can recommend? Or... is this a case where querying a publisher is best? Any advice would be helpful.
Thanks!

Bumping this. Nobody has a read on agents/publishers interested in game books?