Finland

Latvia leads global literacy rankings at 99.9 percent adult literacy, with Estonia, Lithuania, and a cluster of Eastern European, Northern European, and East Asian countries reporting rates above 99 percent. More than 30 countries have effectively achieved universal adult literacy. At the other end of the spectrum, Niger's adult literacy rate stands at approximately 19 percent — the world's lowest. This ranking covers the top 15 highest-literacy countries using UNESCO Institute for Statistics data, with methodology, caveats, and analysis of what literacy actually measures.

Finland has been the world's happiest country for 7 consecutive years in the World Happiness Report 2024. Denmark, Iceland, and Sweden follow. The report measures life satisfaction across 140+ countries using the Cantril ladder scale. GDP matters — but social trust, freedom, and health matter more. Here's the full happiness ranking and what actually drives it.

Finland and Sweden have the highest sports participation rates — over 70% of adults play sport regularly. Australia has the most sports organisations per capita. The US has the most professional sports leagues. Here's the full ranking of the world's most sports-active nations.

No single list ranks countries by lake count, because the answer depends on how small a pond you are willing to call a lake. Here is what the national surveys and satellite inventories actually say, and which lakes hold the most water.

Coffee rankings depend on the year, population denominator, and whether they measure beans, cups, or caffeine. Learn how to compare country consumption without mixing those measures.