Exploring the maths secrets of The Simpsons.
Leron Thomas is joined by Iggy Pop, Anna Calvi and Jason Williamson
Why do some of us still serve traditional holiday foods even though we don't like them?
A roundup of the day's top news stories from the BBC
What's in store for 2020?
Care centres and specially designed courts are helping rape victims in South Africa
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Sample the best World Service podcasts
Do some comics risk promoting misunderstanding and perpetuating stereotypes in comedy?
The story of girls trapped in the violent world of cross-country drugs gangs in the UK
Why the mysterious loss of honey bees in the US triggered a global panic.
Six-year-old finds message in a card allegedly from a Chinese prison
How Star Wars changed the cinematic universe in 1977
How the wife of US President Franklin Roosevelt became a powerful political operator
PM Scott Morrison has conceded that climate change is contributing to wildfires
Razia Iqbal speaks to US Supreme Court Justice Ruth Bader Ginsburg
South Africa's cricket crisis, the 12-ball IPL trial and Australia's indigenous players.
The scale of the Conservative Party triumph promises to have seismic consequences.
Transgender choir make video for those in LGBTQ community afraid to go home for Christmas
The French president has announced that the CFA Franc will be replaced
Unprecedented protests across India in response to changes to its citizenship
The US House of Representatives votes that Donald Trump stand trial in the Senate
Now... What's in a name?
The Grammy award winning Mexican-American jazz drummer talks music and politics
From screaming into the abyss to taking yourself less seriously - some tips for survival
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