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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

The Numbers of 2013 - Part One

The most informative, interesting and idiosyncratic statistics of the year

• 11 mins

The Numbers of 2013 - Part Two

The most informative, interesting and idiosyncratic statistics of the year

• 11 mins

Counting the Dead in Iraq

How do you count those killed in war accurately?

• 11 mins

Could an Apple-a-day Reduce Illness?

A study has shown an apple-a-day will actually keep the doctors away but is it accurate?

• 11 mins

Alcohol and Cancer

Do two large glasses of wine triple the risk of mouth cancer?

• 11 mins

Immigration

Tim Harford explores the economic benefits of immigration, plus wedding guest strategies.

• 11 mins

Rising Drug Overdose Deaths

Deaths from drug overdoses in the United States are on the rise 鈥� but why?

• 11 mins

Love by Numbers

The maths behind modern matchmaking

• 11 mins

Neknomination Outbreak

How quickly will the online global drinking craze Neknomination spread - and fizzle out?

• 11 mins

The 10,000 Hours Rule

Is it possible to become an expert on practice alone?

• 11 mins

Modern Slavery

Are there 21 million slaves in the world today?

• 11 mins

Mailbox Edition

Your questions 鈥� from the USA, Australia and the world

• 11 mins

Missing Planes

Could Bayesian statistics help find Flight MH370?

• 11 mins

Is London France鈥檚 Sixth Largest City?

Are there really 300,000 French people in London?

• 11 mins

Freedom in Numbers

How many people in the world live in freedom?

• 11 mins

Freedom in Numbers

How many people in the world live in freedom? First broadcast live on 01 April 2014.

• 11 mins

Nigeria - Rich or Poor?

How did Nigeria become the largest African economy overnight?

• 11 mins

Magic Numbers

Do you have a favourite number - one you think stands out from all the others?

• 11 mins

Killed for Being Female?

Are there 100 million women missing from the world?

• 11 mins

Did Sir Roger Bannister make the 鈥榠mpossible鈥� possible?

A mile in under four minutes. Did positive thinking propel dozens to do the same?

• 11 mins

Brazil鈥檚 Maths Superstar

Alex Bellos tells the surprising story of Brazil's favourite maths book.

• 11 mins

Did Global Poverty Halve Overnight?

Does greater purchasing power in developing countries mean there are fewer poor people?

• 11 mins

Risk Savvy

Gerd Gigerenzer on the famous probability puzzle involving goats and game shows

• 11 mins

The Piketty Affair

Did 鈥榬ock-star鈥� French economist Thomas Piketty get his numbers wrong?

• 11 mins

Spurious Correlations

Is the divorce rate in the US state of Maine linked to margarine consumption?

• 11 mins

Heads Or Tails?

What can we learn about happiness if people make key life decisions based on a coin toss?

• 11 mins

Money for Nothing?

When it comes to aid, what works best - providing goods, or handing over cash?

• 11 mins