Surprise!

Jo & Jo are celebrating a birthday. But how many candles actually belong on the twins' birthday cake? And how can this cake be best divided among so many guests? And what does the cake have to do with the mysterious Pi?
With these simple questions begins a journey in the footsteps of mathematics...

With the help of numbers and formulas, people have been searching for centuries on their expeditions of research for a possible description of the world, for solutions to the riddles of the universe and the problems of everyday life, for useful applications of calculations, but also for the challenge of a game full of questions, errors, discoveries, and surprises.

Andreas Pfaffenberger, the Upper Austrian puppeteer who explores the world of puppet theater from Berlin, and theater maker Martina Winkel take the audience on a journey into the world of mathematics with their stories.