Are claims that one in five British Muslims ‘sympathise with jihadis’ correct?
Has so-called Islamic State been losing territory?
Are creative people more likely to be mentally ill, and has Cuba wiped out child hunger?
As China ends its one child policy what has been its impact? Ruth Alexander investigates.
Are processed meats as cancer-causing as cigarettes? Ruth Alexander investigates.
Are a million barrels of Nigeria’s oil stolen per day? Ruth Alexander finds out.
Nobel Prize winning economist professor Angus Deaton on a lifetime measuring inequality.
Are tall people really more likely to get cancer? Ruth Alexander looks at a new study
Is it harder to play football against ten men? Tim Harford finds out
How reliable are psychological science studies? Tim Harford finds out.