| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,039 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,056 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,726 |
| Island Countries | 0 | - | 4.99 | 712,683 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,386 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,656 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,259 |
| Countries with Megacities | 0 | - | 4.99 | 267,326 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,941 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,190 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,257 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,306 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,727 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,322 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,100 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,899 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,555 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,635 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,626 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,982 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,486 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,360 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,302 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,709 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,929 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,255 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,650 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,980 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,020 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,840 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,525 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,515 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,156 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,825 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,281 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,002 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,648 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,754 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,239 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,436 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,490 |
| 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 | 145,328 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,035 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,391 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,786 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,544 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,165 |
| 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 | 96,734 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,388 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,994 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,005 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,246 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,465 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,930 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,408 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,721 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,786 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,920 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,212 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,648 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,718 |
| Largest City by Island | 0 | - | 4.87 | 72,483 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,444 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,728 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,173 |
| Megacities on a World Map | 0 | - | 4.98 | 257,082 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,788 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,722 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,526 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,295 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,723 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,866 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,924 |
| 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 | 67,530 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,876 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,789 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,703 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,978 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,194 |
| 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 | 23,825 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,647 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,217 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,010 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 104,954 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,904 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,009 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,587 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,026 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,213 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,448 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,898 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,254 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,535 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,276 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,905,074 |
| Landlocked Countries | 0 | - | 4.99 | 426,244 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 589,407 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,218 |
| Name a Valid Island Country | 0 | - | 4.97 | 130,216 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,942 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,430 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,778 |
| 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 | 60,136 |
| 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 | 57,349 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,326 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,992 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,853 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,776 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,314 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,447 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,574 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,544 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,580 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 102,999 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,246 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,432 |
| Himalayan Countries | 0 | - | 4.93 | 140,390 |
| Andean Countries | 0 | - | 4.94 | 85,550 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,700 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,135 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,266 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,501 |
| Danube Countries | 0 | - | 4.97 | 72,439 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,651 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,876 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,214 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,686 |
| European Landlocked Countries | 0 | - | 4.99 | 147,641 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,356 |
| Countries with the Most Species | 0 | - | 4.99 | 103,591 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,458 |
| 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 | 59,864 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,599 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,044 |
| Countries in the Alps | 0 | - | 4.87 | 118,828 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,719 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,947 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,989 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,061 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,996 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,291 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,443 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,894 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,448 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,214 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,902 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,761 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,586 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,826 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,920 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,930 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,640 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,760 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,716 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,857 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,235 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,536 |
| Largest Countries By Category | 0 | - | 4.97 | 158,913 |
| Countries by Countries | 0 | - | 4.96 | 63,673 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,302 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,416 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,680 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,097 |
| 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 | 3,806,617 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,496 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,992 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,824 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,624 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,186 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,181 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,591 |
| Longest International Borders | 0 | - | 4.99 | 265,861 |
| Countries with Three Borders | 0 | - | 4.96 | 36,789 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,370 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,512 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,186 |
| Demonym of Every Country | 0 | - | 4.90 | 61,519 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,522 |
| People Born on Islands | 0 | - | 4.39 | 53,068 |
| Islands by Picture | 0 | - | 4.28 | 107,830 |
| Islands by Wikipedia Descriptions | 0 | - | 4.54 | 37,524 |
| Name a Valid Island | 0 | - | 4.80 | 69,556 |
| Island Superlatives | 0 | - | 4.57 | 34,724 |
