In this episode, Rob and Andrew puzzle over black hats, mixed fruit and how to get into a football match. Or not. One of them takes a trip to Barnard Castle as they welcome special guest Sarah Leppard who is an optometrist. Or maybe optician. You'll have to listen and make up your own mind.
In this special edition of Puzzling Maths, Rob and Andrew give over a rather large percentage of their minutes to the practically perfect Anna Foster, co-presenter of BBC Radio 5 Live Drive.
She talks candidly about maths, what maths she uses in her work, how it is used by politicians, and much more.
Oh - and unsurprisingly - puzzles.
Given that this is only episode 2 of Puzzling Maths, there is a 50% chance that it may well be the best episode Rob and Andrew have ever recorded.
It's definitely in the top two, at least.
We have more puzzles, answers to last episode's teaser, and some further fascinating maths from the real world, including, quirkily but entirely unsurprisingly, more maths to do with cricket and cycling.
This, as the name suggests, was the very first episode (which partially explains why it sounds as though it was recorded in a broom cupboard), in which we introduce ourselves, explain the premise behind the Puzzling Maths podcast, set and solve puzzles, think about maths in our everyday lives, and talk to special guest Shannon Fairchild about her experiences of maths at school and in the workplace.