| One Border Countries | 0 | - | 4.98 | 406,489 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,355,136 |
| Countries by Borders #1 | 0 | - | 5.00 | 175,681 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 283,513 |
| Longest Border by Country #1 | 0 | - | 4.99 | 134,652 |
| Largest Countries with No Borders | 0 | - | 4.97 | 179,966 |
| Countries with Two Borders | 0 | - | 4.99 | 127,184 |
| Countries by Borders #2 | 0 | - | 4.97 | 117,835 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 119,032 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 119,402 |
| Largest Countries Bordering Each Other | 0 | - | 4.98 | 96,160 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.95 | 78,348 |
| Countries by Borders #3 | 0 | - | 4.98 | 89,909 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 72,549 |
| Longest Border by Country #2 | 0 | - | 4.96 | 113,065 |
| Countries with the Most Borders | 0 | - | 4.97 | 357,105 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 29,691 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,254 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,598 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,430 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 92,558 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 64,419 |
| Countries with the Shortest Total Borders | 0 | - | 4.92 | 81,163 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 115,880 |
| Bordering Countries by HDI Difference | 0 | - | 4.91 | 47,399 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 68,612 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,289 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,715 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,440,967 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 317,237 |
| Smallest Countries Bordering Each Other | 0 | - | 4.66 | 83,554 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,015,710 |
| Countries on the Equator | 0 | - | 4.82 | 132,336 |
| Members of the Arab League | 0 | - | 4.82 | 59,144 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,083 |
| Himalayan Countries | 0 | - | 4.95 | 102,391 |
| Andean Countries | 0 | - | 4.90 | 56,876 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,716 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,548 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,865 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,524 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,712 |
| Danube Countries | 0 | - | 4.97 | 56,353 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,387 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,586 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,291 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,759 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,367 |
| European Landlocked Countries | 0 | - | 4.99 | 114,832 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,736 |
| Countries with the Most Species | 0 | - | 4.99 | 89,082 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,806 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,427 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,805 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,746 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,101 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,443 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,669 |
| Countries in the Alps | 0 | - | 4.82 | 101,790 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,597 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,744 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,108 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,691 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,336 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,836 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,016 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,738 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,058 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,129 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,892 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,323 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,404 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,944 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,481 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,951 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,541 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,935 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,933 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,605 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,307 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,942 |
| Largest Countries By Category | 0 | - | 4.96 | 143,846 |
| Countries by Countries | 0 | - | 4.96 | 54,052 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,293 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,488 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,572 |
| Island Countries Quiz | 0 | - | 4.99 | 638,509 |
| Biggest Countries by Area | 0 | - | 5.00 | 924,399 |
| Northernmost Countries | 0 | - | 4.99 | 325,252 |
| Countries of South America | 0 | - | 5.00 | 783,302 |
| Countries of Oceania | 0 | - | 5.00 | 881,478 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,106,736 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,550,534 |
| Which Country Does Not Border... | 0 | - | 4.79 | 85,159 |
| Bordering Countries by Clue #1 | 0 | - | 4.96 | 68,623 |
| Bordering Countries by Clue #2 | 0 | - | 4.94 | 69,903 |
| Walking Across Borders with Hints #1 | 0 | - | 4.93 | 88,857 |
| Countries Bordering Two or More Oceans | 0 | - | 4.20 | 109,222 |
| Borders of One Border Countries | 0 | - | 4.17 | 67,741 |
| Random Countries by Borders | 0 | - | 4.99 | 65,836 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,069 |
| Countries with Megacities | 0 | - | 4.99 | 194,642 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,381 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,822 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,626 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,676 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,942 |
| Countries by Official Language | 0 | - | 4.95 | 153,439 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,624 |
| Countries in their Native Language | 0 | - | 4.98 | 176,953 |
| Independence from Whom | 0 | - | 4.99 | 182,857 |
| Subdivisions by Country | 0 | - | 4.82 | 46,168 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,821 |
| Megadiverse Countries | 0 | - | 4.96 | 124,718 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,906 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,991 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,118 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,038 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,598 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,547 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,484 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,968 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,811 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,788 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,343 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,478 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,909 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,731 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,007 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,267 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,074 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,024 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,502 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,537 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,849 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,431 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,279 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,825 |
| Widest Countries East to West | 0 | - | 4.93 | 118,684 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,675 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,844 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,087 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,761 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,622 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,488 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,247 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,853 |
| Countries with Double Letters | 0 | - | 4.96 | 66,790 |
| Countries that End in N | 0 | - | 4.94 | 131,247 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,715 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,519 |
| Countries with W | 0 | - | 4.97 | 121,545 |
| Countries with Z | 0 | - | 4.98 | 242,300 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,513 |
| Countries That End in U | 0 | - | 4.94 | 106,883 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,233 |
| Countries that End in O | 0 | - | 4.92 | 146,337 |
| Countries that End in R | 0 | - | 4.86 | 96,092 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,836 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,502 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,831 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,551 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,480 |
| Countries That End in Y | 0 | - | 4.90 | 160,781 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,585 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,788 |
| Countries that End in I | 0 | - | 4.92 | 114,133 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,365 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,789 |
| Countries That End in NIA | 0 | - | 4.93 | 100,308 |
| Countries That End in BIA | 0 | - | 4.91 | 125,318 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,341 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,020 |
| Countries That End in RIA | 0 | - | 4.89 | 100,446 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,722 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,624 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,594 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 109,395 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,324 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,512 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,370 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,753 |
| Countries that End in L | 0 | - | 4.95 | 133,323 |
| "Land" Countries | 0 | - | 4.98 | 287,850 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,730 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,067 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,677 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,456 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,068 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,136 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 156,923 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,649 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,574 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 191,912 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 139,920 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 65,412 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,640 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,876 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,372 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,301,719 |
