Between 2007 and 2012, Bill Gates gave away $28 billion; saving 6 million lives.
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In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
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As part of an advertising campaign, Molson, a Canadian beer company, strategically placed 'beer fridges' around Europe that only Canadian passports could unlock.
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In Czech Republic, women are entitled to up to 4 years of paid maternity leave, increasing to 7 years if the child is disabled.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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