In this lecture Professor Jim Al-Khalili, Presenter of The Life Scientific on Radio 4, British scientist and author, selects some of his favourite scientific conundrums. From the Monty Hall problem to Olbers’ paradox about why the sky gets dark at night and from Schrödinger’s famous cat to those pesky demons of Maxwell and Laplace; prepared to be baffled. To find out more about the College of Engineering and Physical Sciences visit http://www.birmingham.ac.uk/eps For the latest news and events from the College of Engineering and Physical Sciences follow us on Twitter: http://www.twitter.com/eps_unibham