Debate, Reform, tax evasion and ants

Fact-checking the leaders' debate, tax evasion savings and the weight of ants

• 30 mins

Why medical error is not the third leading cause of death in the US

Investigating how many deaths are caused by mistakes by doctors and nurses

• 9 mins

Leaflets, taxes, oil workers and classrooms

We look at bad graphs, oil rig extrapolations and pupil populations

• 28 mins

Shakespeare’s maths

Author Rob Eastaway on the numbers in Shakespeare’s writing

• 9 mins

Worse mortgages, better readers, and potholes on the moon

We check some of the numbers that are flying about in the election campaign

• 31 mins

Do ‘pig butchering’ cyber scams make as much as half Cambodia’s GDP?

We investigate the money made by an international cybercrime operation

• 9 mins

Election claims and erection claims

What did Liz Truss do to mortgage rates? Do erections use a litre of blood?

• 28 mins

How a tick box doubled the US maternal mortality rates.

We investigate changes to the way the US gathers their maternal mortality statistics

• 9 mins

Election endings, tennis and meeting men in finance

Exit polls, election claims, and a 54% chance of winning a point in tennis

• 37 mins

The magic of trigonometry

Tim Harford interviews Matt Parker on his latest book ‘Love Triangle’

• 9 mins

Federer’s 54%: Tennis stats explained

How Federer became the best in the world winning just over half the points he played

• 8 mins

Is increasing turbulence making flying more dangerous?

Exploring the link between bumpy flights and climate change

• 10 mins

Are women 14 times more likely to die in natural disasters?

We unpick the idea that women outnumber men by 14 to 1 as casualties of natural disasters

• 12 mins

Does a language die every two weeks?

Languages are disappearing. We investigate claims of how often this happens.

• 9 mins

Is planet Earth getting greener?

Jordan Peterson says Earth has greened by 20% in 20 years. Is he right?

• 10 mins

Are companies making more money from their customers?

We investigate claims mark-ups are larger than ever

• 8 mins

Do we eat a credit card's worth of microplastic each week?

We look at whether humans really ingest five grams of microplastic on a weekly basis

• 8 mins

Where have Cuba’s people gone?

We investigate the collapse in the Caribbean island’s population

• 9 mins

Exclusions, black holes and dividing by zero

Plus special educational needs in Wales and Ghanian nurses in the UK

• 28 mins

Who pays when trade wars heat up?

We look at Donald Trump’s claim that tariffs are a tax on other countries

• 8 mins

How long does it take to turn around an oil tanker?

Plus, Migrants vs Pensioners and Ed Miliband’s energy auction claim

• 27 mins

Nate Silver: Do risk-takers run the world?

Poker player and polling analyst Nate Silver on his new book

• 8 mins

How do you count millionaires?

Plus, asylum seeker costs, private school bets and Baumol's cost disease

• 28 mins

Do 85% of the world’s population practice a religion?

Counting religions across the globe – is the world getting more religious or less?

• 10 mins

Could the winter fuel cut cost more than it saves?

Plus, ONS transgender stats, early-onset cancer, and puzzles you’re meant to get wrong

• 28 mins

The puzzles you’re meant to get wrong

Alex Bellos sets Tim Harford logical conundrums designed to deceive

• 8 mins

How do you breed seventeen octillion rats?

Plus, GPs working less, the UK working less, and Wetherspoons wanting to pay less tax.

• 28 mins

Are 672 billion pounds of corn eaten in the US every year?

A lot of corn is eaten in the United States, but is it really 2.5kg per person per day?

• 10 mins

Should the government target persnuffle?

Plus, childhood obesity, birds hitting windows and Sir David Spiegelhalter’s origin story.

• 27 mins

Uncertainty, probability and double yoked eggs

Professor Sir David Spiegelhalter on his new book, The Art of Uncertainty

• 8 mins