If someone talks about Cuba does it make you think of cigars and classic cars? Or maybe you think of limited freedom of speech and Che Guevara?

We’re talking about Cuba because its minister for Labour, Elena Feitó Cabrera, was forced to resign after she said there was no such thing as ‘beggars’ on the island. What’s the situation with homelessness?

We’re running through some of the top claims we’ve seen about Cuba online with Will Grant, our Cuba Correspondent, and break down how much truth there is behind them.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: William Lee Adams Producers: Emily Horler and Benita Barden Editor: Verity Wilde

Do you find yourself tossing and turning for hours whilst struggling to fall asleep? Or are you out like a light the minute your head touches the pillow? Genetics and environment can play a big part in how easy (or not) you find sleeping.

BBC science journalist Caroline Steel tells us more about what happens to our brains when we sleep and what exactly happened when she visited a sleep lab for a BBC documentary. Medical doctor and sleep expert Dr Jonathan Tham gives us his top tips on getting a good night’s sleep.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Iqra Farooq Producers: Emilia Jansson, Josh Jenkins and Julia Ross-Roy Video Journalist: Jem Westgate Editor: Verity Wilde

Oceans make up more than 99% of the Earth’s habitats by volume — yet less than 20% of them have been explored. Some even say it’s easier to send astronauts into space than it is to reach the ocean floor. Only a handful of people have ever reached the deepest part of the ocean - known as the Challenger Deep in the Mariana Trench in the Pacific Ocean. So, why is it so difficult to get there? And what new tech is helping us uncover the ocean’s secrets?

The BBC’s Climate and Science correspondent Georgina Rannard explains why we know so little about what’s going on in the deepest parts of the ocean and some of the discoveries that have been made about this mysterious part of our world.

Archive courtesy of British Pathé.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: William Lee Adams Producers: Baldeep Chahal, Julia Ross-Roy, Emily Horler and Emilia Jansson Video Journalist: Baldeep Chahal Editor: Verity Wilde