Health Secretary Jeremy Hunt said this week that if you have a stroke at the weekends, you're 20% more likely to die. But is that true? We look at the evidence.

Are you more likely to win prizes with newer Premium Bonds? We ask Radio 4’s Money Box presenter Paul Lewis if there is any truth in this.

A few weeks ago many newspapers were reporting that alcohol was the cause of 70% of Accident and Emergency attendances over the weekends. Did the newspapers misunderstand the research?

Why was the polling in the run up to the General Election last year so wrong? We speak to Professor John Curtice, lead author on a report using the 2015 British Social Attitudes Survey to see if they could come up with better data.

There is great excitement over rumours that one of the predictions Einstein made in his theory of General Relativity has finally been observed. We ask UCL physicist Dr Andrew Pontzen why this is big news.

Plus, is the air in Beijing is so bad that it's like smoking 40 cigarettes a day? We investigate.