BBC Radio 4 - More or Less

Is Mansa Musa the richest person of all time?

Is the West African king, Mansa Musa, the richest person who ever lived?

Does the sudden loss of an hour of sleep raise the risk of having a heart attack?

Are women really less likely than men to be hired for jobs in tech?

Could insects go extinct in one hundred years?

Die, sell on a sunny day, place your work a third of the way through the auction.

Tim Harford talks to Matt Parker on how simple maths mistakes can cause big problems.

Tim Harford on climate change, Victorian diseases, maths mistakes and alcohol consumption

Assessing the accuracy of a Groundhog; How many English people have right royal relatives?

Tim Harford finds untrue a recent report that there is a 'suicidal generation' of teens.

A listener doubts her popularity on the dating app Tinder. We investigate the numbers.