| Quiz | Takes | Points | Best |
|---|---|---|---|
| Most Populous Countries as a Percent of Their Continent | 93,931 | 0 | - |
| Countries With More than 50 Million People | 198,038 | 0 | - |
| Countries with the Highest Population 65 and Older | 93,421 | 0 | - |
| Ten Biggest Cities by Hemisphere | 79,054 | 0 | - |
| Countries with Shrinking Populations | 64,965 | 0 | - |
| Cities Chain #1 | 66,465 | 0 | - |
| Large Countries with Small Economies | 80,534 | 0 | - |
| Northernmost Major Cities | 56,472 | 0 | - |
| 100 Biggest Cities of the World in 1900 with a Map | 4,411 | - | - |
| 100 Biggest Cities in 1950 on a World Map | 6,774 | - | - |
| 100 Biggest Cities in Europe in 1900 with a Map | 9,421 | - | - |
| Most Populous 2nd Cities | 56,988 | 0 | - |
| Countries with the Highest Population Under Age 15 | 110,226 | 0 | - |
| Countries with the Most Traffic-Related Deaths | 48,267 | 0 | - |
| Most Populous First-Level Subdivisions In The World | 78 | - | - |
| Countries with the Longest Road Networks Quiz | 41,189 | 0 | - |
| All 10m+ First-Level Country Subdivisions | 34,595 | 0 | - |
| 100 Biggest Cities of Europe in 1850 with a Map | 12,199 | 0 | - |