Brian Cox and Robin Ince are joined by comedian Jo Brand. mathematicians Prof Hannah Fry and Dr Eugenia Cheng and xkcd webcomic creator Randall Munroe to discover how thinking like a mathematician could solve some tricky everyday conundrums. From the optimal strategy to finding your true love, to how to fix a wonky table in the pub, thinking like a mathematician can help you in some very unlikely situations. They discover how mathematical thinking can help answer some truly out of this world questions as well: how much soup would it take to fill the solar system? What would happen if you shrink Jupiter to the size of a house? Not problems we'd encounter in every day life maybe, but all questions sent to Randall Munroe for his "What If?" series of books. At first glance the questions may seem impossible, but, as it turns out, maths and physics can provide an answer to these headscratchers, as the panel discover. Executive Producer: Alexandra Feachem