[ On his way past the fish tanks, Regis notes the two riddles - and the blobfish tank one makes him twitch a smile - but he waits until everyone has seen both. ]

Well then. We have a number and a motion. [ He likes puns, okay? It's a thing. ]

Though I can make arguments easily for five or seven or nine, on that one. [ He nods, easily, towards the tank of tropical fish. ] Thoughts, anyone?