The world's largest country, whose capital is reportedly home to more billionaires per capita than anywhere else on Earth, how much do you know about Russia?

Can you identify the most common surname in each of the following countries..?

It's estimated that more than 80% of the Earth's surface is volcanic in origin. Test your knowledge of volcanoes with these multiple choice questions.

If you know your Raclette from your Rösti and your Daiquiri from your Mojito, then test your knowledge of all things food and drink with these multiple choice questions...