Surveys consistently show that people who live in the world's poorest countries tend to be more religious than those living in wealthier countries. However, religion also plays a prominent role in people’s lives in certain relatively affluent countries too. We wonder: Which is the most religious country in the world?
By 2100, Africa's population is projected to reach 3.6 billion — making it by far the continent whose population is expected to grow the most by the next century. We wonder: How many African countries will have populations exceeding 100 million people by 2100?
With women making enormous strides in the workplace in recent decades, it has become more difficult for many working women to balance their careers with their home life — including their role as parent. We wonder: In which developed country do working mothers devote the most time to childcare?
China is the world's most populous nation, with 1.3 billion people. They live in 23 provinces, five autonomous regions, four municipalities directly under the central government and two special administrative regions, Hong Kong and Macao. We wonder: How many provinces in China have a population of more than 100 million?