Pygmy Marmoset species by scientific name

Can you name the countries of the world where at least 50% of residents are Islamic?

Can you name the countries with the most heavy metal bands, both in total and per capita?

20 random countries have been removed from the map of the world! Can you identify them in 3 minutes?

Click on every square of the world map which contains an urban agglomeration with a population of at least 10 million.