BBC Two is celebrating its 50th anniversary on Sunday, 20 April, having been home to many landmark programmes over the decades.
Elections in Nigeria, Africa's most populous nation, are extended to Sunday in parts of the country after delays and a number of attacks.
What drives people to murder-suicide?
Why do people exchange texts with imaginary partners?
Why did Singapore ban chewing gum?
British teenager who became an unlikely Indian movie star
What kitchen strategy makes rice less fattening?
How Vladimir Putin's KGB days in Germany left a permanent mark
The life of a rare fruit collector
China's endangered Ili Pika goes viral
What does your food shopping say about you?