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How many countries do you know? In this quiz, you've got 15:00 to name as many as you can. Go!

Which countries are home to a "supertall" skyscraper, defined as being at least 300 meters in height?

Name the 20 cities ranked as the world's top financial centers according to the Global Financial Centres Index.

You will be shown 10 random numbers between 1 and 100 without knowing what's next. Your task is to put them in order! But beware, if a number cannot be placed, the quiz ends...