| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,038 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,053 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,711 |
| Island Countries | 0 | - | 4.99 | 712,676 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,385 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,656 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,254 |
| Countries with Megacities | 0 | - | 4.99 | 267,311 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,934 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,188 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,254 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,304 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,726 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,318 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,098 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,897 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,553 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,606 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,616 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,950 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,485 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,359 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,276 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,707 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,928 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,254 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,650 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,979 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,013 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,837 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,524 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,513 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,146 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,822 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,278 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,000 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,648 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,752 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,236 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,434 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,476 |
| 5 Most Populous Cities in Each Country With a Map | 0 | - | 4.96 | 40,044 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,323 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,034 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,390 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,774 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,507 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,148 |
| Boundary Waters | 0 | - | 4.92 | 88,784 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,424 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,732 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,384 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,993 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,004 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,236 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,460 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,930 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,403 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,719 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,785 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,916 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,211 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,637 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,713 |
| Largest City by Island | 0 | - | 4.87 | 72,478 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,442 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,727 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,173 |
| Megacities on a World Map | 0 | - | 4.98 | 257,068 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,786 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,720 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,520 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,295 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,720 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,863 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,923 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,557 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,218 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,529 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,875 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,789 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,698 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,972 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,189 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,988 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,506 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,823 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,639 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,208 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,993 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,951 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,899 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,008 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,587 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,021 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,211 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,448 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,884 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,253 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,535 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,275 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,903,329 |
| Landlocked Countries | 0 | - | 4.99 | 426,222 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 589,323 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,215 |
| Name a Valid Island Country | 0 | - | 4.97 | 130,204 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,941 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,429 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,777 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,161 |
| Population Trivia | 0 | - | 4.32 | 27,574 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,808 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,134 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,661 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,167 |
| Biggest City by Region | 0 | - | 4.50 | 36,398 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,345 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,325 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,990 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,850 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,771 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,313 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,447 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,573 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,543 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,579 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 102,994 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,136 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,425 |
| Himalayan Countries | 0 | - | 4.93 | 140,383 |
| Andean Countries | 0 | - | 4.94 | 85,541 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,697 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,126 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,264 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,497 |
| Danube Countries | 0 | - | 4.97 | 72,439 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,644 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,874 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,204 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,681 |
| European Landlocked Countries | 0 | - | 4.99 | 147,640 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,353 |
| Countries with the Most Species | 0 | - | 4.99 | 103,590 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,454 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,786 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,899 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,862 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,597 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,044 |
| Countries in the Alps | 0 | - | 4.87 | 118,827 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,714 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,942 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,985 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,059 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,994 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,289 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,439 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,891 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,447 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,212 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,899 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,761 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,585 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,825 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,917 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,926 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,638 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,664 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,715 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,850 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,227 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,533 |
| Largest Countries By Category | 0 | - | 4.97 | 158,908 |
| Countries by Countries | 0 | - | 4.96 | 63,672 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,301 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,414 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,680 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,092 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,456 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,130 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,491 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,493 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,992 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,823 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,623 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,185 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,177 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,591 |
| Longest International Borders | 0 | - | 4.99 | 265,853 |
| Countries with Three Borders | 0 | - | 4.96 | 36,787 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,370 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,510 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,185 |
| Demonym of Every Country | 0 | - | 4.90 | 61,514 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,522 |
| People Born on Islands | 0 | - | 4.39 | 53,066 |
| Islands by Picture | 0 | - | 4.28 | 107,827 |
| Islands by Wikipedia Descriptions | 0 | - | 4.54 | 37,523 |
| Name a Valid Island | 0 | - | 4.80 | 69,554 |
| Island Superlatives | 0 | - | 4.57 | 34,723 |
