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The Maths of Spies and Terrorists

How feasible is it for the authorities to keep track of everyone on their watch list?

• 9 mins

Sex on the Brain?

It is often said that men think about sex every seven seconds, but is it true?

• 9 mins

Does a Child Die From Hunger Every 15 Seconds?

It is a popular statistic used by celebrities and charity campaigners but is it true?

• 9 mins

Will 40 per cent of the world's workforce really be in Africa by 2050?

How do we calculate future population projections in Africa?

• 9 mins

How Long Will You Live?

Why life expectancy around the world has increased by six years in the past two decades

• 9 mins

Does sex really make the world wide web go round?

Is the internet really 37% porn and does American football have a crime problem?

• 9 mins

Does a Child Die From Hunger Every 15 Seconds?

It is a popular statistic used by celebrities and charity campaigners but is it true?

• 9 mins

Egypt: Biggest Protest in History?

Was the Egyptian uprising which ousted President Mohamed Morsi the biggest ever seen?

• 9 mins

Analysing Chris Froome's Tour de France victory

What do the numbers tell us about Chris Froome's Tour de France performance?

• 9 mins

What is the Most Visited Country in the World?

Which countries top the most visited country list and how much do tourists spend there?

• 9 mins

Where could we fit the entire world鈥檚 population?

Where could we fit the entire world鈥檚 population and the effectiveness of soccer managers?

• 9 mins

The Magic of Maths

How a love of magic led to a love of maths for Stanford professor Persi Diaconis

• 9 mins

Is Coffee Bad for You?

How dangerous is your daily caffeine fix?

• 9 mins

Counting Climate Migrants

Is it true that environmental problems will create 200 million migrants?

• 9 mins

The Death Toll in Syria

How accurate are the reported death estimates in the Syrian conflict?

• 9 mins

Sexual Violence and Statistics in Asia

A report suggests almost a quarter of men in some Asian countries admit rape. Is it true?

• 9 mins

Rush: Formula 1 Risk

How dangerous was motor-racing in the 1970s? Plus: environmental facts about plastic bags

• 9 mins

Is the World's Population Growing Out of Control?

Is Sir David Attenborough right about global population projections?

• 9 mins

Have Mosquitoes Killed Half the World?

Have mosquitoes been responsible for the death of half the people who have ever lived?

• 9 mins

The Hawthorne Effect

The social study that showed that workers are more productive if they are given attention

• 9 mins

Nobel Prize puzzle

How the economist who called markets efficient is sharing top award with his big critic.

• 9 mins

How Long Can you Wait Until you Try to Have a Baby?

Why 300-year-old fertility statistics are still in use today

• 9 mins

Have 100,000 Christians died as martyrs?

How true are claims that there is an unreported global war on Christians?

• 11 mins

Does Politics Make us Get our Sums Wrong?

How researchers have measured the extent to which personal opinions cloud our judgement

• 11 mins

Sachin Tendulkar - the greatest, or just the 29th best test batsman of all time?

How do other measuring systems rate the Little Master?

• 11 mins

Could Statistics Cure Cancer?

Professor Terry Speed explains how statistics plays an important role in cancer research

• 11 mins

Football Ranking Mysteries Explained

How has Switzerland attained a seed when the Netherlands, Italy and England have not?

• 11 mins

Testing the PISA test

Are the OECD PISA rankings really as definitive as people believe?

• 11 mins

Genocide in South Africa?

Do crime stats show white South Africans are the victims of widespread racist killings?

• 11 mins

Global Wine Shortage?

It is reported that global wine supplies are running low but do the figures add up?

• 11 mins