Two-year-old Adam Kirby joins Mensa with IQ higher than both David Cameron and Barack Obama

Get the free Morning Headlines email for news from our reporters across the world Sign up to our free Morning Headlines email Sign up to our free Morning Headlines email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy A two-year-old from south London with an IQ higher than David Cameron's has become the youngest member of British Mensa. After he scored 141 on the Stanford-Binet IQ test - higher than both Mr Cameron and US president Barack Obama - he was invited to join British Mensa, the society for people with outstandingly high IQs. Adam's father, IT consultant Dean Kirby, said: "Adam’s abilities are outstanding and we’ve been actively developing his intelligence since he was 10 weeks old - but we’re certainly delighted for him. John Stevenage, British Mensa’s CEO, said: "The members of Mensa always welcome new additions as we aim to stimulate people in an intellectual and social environment.