| Countries in World War II | 914,659 | 0 | - |
| Countries with the Most Tourists Quiz | 407,295 | 0 | - |
| Landlocked Countries | 422,023 | 0 | - |
| Majority Muslim Countries | 375,514 | 0 | - |
| Spanish-Speaking Countries | 375,509 | 0 | - |
| Countries with the Most Billionaires | 335,919 | 0 | - |
| Category Elimination - Countries #1 | 321,716 | 0 | - |
| Countries with Five Letters | 282,469 | 0 | - |
| Commonwealth of Nations Countries | 237,667 | 0 | - |
| Axis Occupied Countries of WWII | 229,348 | 0 | - |
| Countries with Megacities | 264,586 | 0 | - |
| Category Elimination - Countries #3 | 225,580 | 0 | - |
| Countries with Six Letters | 213,548 | 0 | - |
| Countries Ending in "IA" | 209,084 | 0 | - |
| Countries in their Native Language | 199,051 | 0 | - |
| Countries that End in O | 159,508 | 0 | - |
| Countries that End in N | 171,123 | 0 | - |
| Countries of Europe by Population | 181,431 | 0 | - |
| Countries That End in RIA | 126,805 | 0 | - |
| African Countries with the Shortest Names | 153,817 | 0 | - |
| Countries with Cardinal Directions in Their Names | 152,854 | 0 | - |
| Countries by Last Two Letters | 135,471 | 0 | - |
| Countries with Same-Sex Marriage | 110,171 | 0 | - |
| Top 20 Longest One-Word Country Names | 134,457 | 0 | - |
| Countries With an "Ish" Demonym | 117,017 | 0 | - |
| Monarchies of Europe | 98,340 | 0 | - |
| Countries with the Most Airports | 99,300 | 0 | - |
| Countries with the Highest Taxes | 87,633 | 0 | - |
| Countries that Visit the United States the Most | 91,981 | 0 | - |
| Groups of Countries that Start with the Same 3 Letters | 91,667 | 0 | - |
| Biggest British Empire Countries | 100,180 | 0 | - |
| Next Country Alphabetically | 86,289 | 0 | - |
| Countries With an "Ese" Demonym | 86,425 | 0 | - |
| Countries with Multiple Populous Islands | 95,662 | 0 | - |
| Tropical Rainforest Countries | 82,171 | 0 | - |
| Countries with the Most Tourists Per Capita | 82,131 | 0 | - |
| Three Most Populous Countries By Each Letter | 89,831 | 0 | - |
| Countries by Consonants | 78,737 | 0 | - |
| Biggest Import Partners By Country | 78,653 | 0 | - |
| Most Guessed Cities by Country #2 | 79,615 | 0 | - |
| Most Populous Countries by Year | 110,873 | 0 | - |
| Countries as U.S. First Names | 78,106 | 0 | - |
| Countries Less Populous Than Their Neighbors | 81,546 | 0 | - |
| Most Populous Modern-Day Countries in 1000 AD | 76,300 | 0 | - |
| Countries with the Largest Exclusive Economic Zone | 73,234 | 0 | - |
| Smallest Countries Bordering Each Other | 92,903 | 0 | - |
| Click All the Countries on a Borderless World Map | 153,114 | - | - |
| Country Boggle | 64,872 | 0 | - |
