Billionaires versus the world

Oxfam says that 62 people now own as much wealth as half of the world’s population. But is this really telling us anything meaningful? And how is it that this study shows that some of the world’s poorest people live in the United States?What do you do with bored children on a bus? Rob Eastaway, author of ‘Maths on the go,’ gets three pupils to play a game on the Number 12 in south London. Prime Minister David Cameron said this week that 22% of British Muslim women speak little or no English. He says that equates to 190,000. We look at the figures.Plus, was the Hatton Garden Heist the biggest robbery ever? Is water more expensive than oil? And a new prime number is discovered.