| Countries with the Most Borders | 0 | - | 4.97 | 364,653 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,633 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 99,069 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 85,776 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 95,689 |
| Densest Countries Bordering Each Other | 0 | - | 4.94 | 73,652 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 95,594 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 118,224 |
| Which Country Does Not Border... | 0 | - | 4.81 | 87,584 |
| Bordering Countries by HDI Difference | 0 | - | 4.91 | 48,488 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,378 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 83,265 |
| One Border Countries | 0 | - | 4.98 | 418,037 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.89 | 16,323 |
| Bordering Countries by Clue #1 | 0 | - | 4.96 | 70,095 |
| Bordering Countries by Clue #2 | 0 | - | 4.94 | 71,431 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 91,216 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 68,003 |
| Random Countries by Borders | 0 | - | 4.99 | 67,936 |
| Countries of the World Quiz | 0 | - | 5.00 | 42,108,895 |
| Countries of the World in 1900 | 0 | - | 4.88 | 69,556 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 175,007 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 132,076 |
| Countries by Borders #1 | 0 | - | 5.00 | 179,019 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 291,333 |
| Longest Border by Country #1 | 0 | - | 4.99 | 137,966 |
| Largest Countries with No Borders | 0 | - | 4.97 | 205,063 |
| Countries with Two Borders | 0 | - | 4.99 | 129,849 |
| Countries by Borders #2 | 0 | - | 4.96 | 120,507 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 132,461 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 122,467 |
| Largest Countries Bordering Each Other | 0 | - | 4.98 | 98,567 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.94 | 79,955 |
| Countries by Borders #3 | 0 | - | 4.99 | 91,771 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 73,286 |
| Longest Border by Country #2 | 0 | - | 4.96 | 115,218 |
| Longest Border by Country #3 | 0 | - | 4.99 | 74,104 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 352,131 |
| Pixelated World Map | 0 | - | 5.00 | 131,372 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,211,597 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 89,425 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.81 | 51,191 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,258,839 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 30,453 |
| Members of the Arab League | 0 | - | 4.87 | 68,071 |
| Sahara Desert Countries | 0 | - | 4.97 | 131,897 |
| Himalayan Countries | 0 | - | 4.94 | 109,879 |
| Andean Countries | 0 | - | 4.91 | 61,103 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 62,437 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 51,595 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 105,177 |
| Coffee Producing Countries | 0 | - | 4.82 | 55,253 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,702 |
| Danube Countries | 0 | - | 4.97 | 57,515 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,522 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,526 |
| Countries with the Best Passports | 0 | - | 4.86 | 73,357 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,920 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,666 |
| European Landlocked Countries | 0 | - | 4.99 | 137,510 |
| Partially Recognized Countries | 0 | - | 4.98 | 91,324 |
| Countries with the Most Species | 0 | - | 4.99 | 90,214 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,832 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,175 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,464 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,431 |
| Countries that Use the Peso | 0 | - | 4.82 | 47,086 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 67,150 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 50,312 |
| Countries in the Alps | 0 | - | 4.87 | 104,659 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,935 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 90,741 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,626 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,731 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 95,320 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,686 |
| Five Biggest Countries by Latitude | 0 | - | 4.98 | 91,241 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 47,075 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,890 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,752 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,505 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,230 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,201 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 97,164 |
| Arctic Ocean Countries | 0 | - | 4.93 | 73,002 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,629 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 101,682 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 62,254 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,380 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 205,680 |
| World Countries - Blind Typing | 0 | - | 5.00 | 76,707 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 43,084 |
| Largest Countries By Category | 0 | - | 4.97 | 147,161 |
| Countries by Countries | 0 | - | 4.96 | 56,022 |
| Country Flags with the Most White | 0 | - | 4.89 | 127,379 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,437 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 45,327 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 78,582 |
| Country Flags With Only Two Colors | 0 | - | 4.93 | 80,226 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 347,171 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 365,946 |
| Island Countries Quiz | 0 | - | 4.99 | 672,265 |
| Biggest Countries by Area | 0 | - | 5.00 | 953,749 |
| Northernmost Countries | 0 | - | 4.99 | 332,335 |
| Countries of South America | 0 | - | 5.00 | 817,077 |
| Countries of Oceania | 0 | - | 5.00 | 922,215 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,627,411 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.86 | 211,028 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 86,929 |
| European Countries with One Border | 0 | - | 4.97 | 168,946 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 147,406 |
| Most Powerful Countries Bordering Each Other | 0 | - | 4.87 | 50,934 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 130,523 |
| Countries with Megacities | 0 | - | 4.99 | 203,589 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 176,843 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 100,837 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 99,392 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 66,800 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 255,306 |
| Countries by Official Language | 0 | - | 4.96 | 176,193 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 255,472 |
| Countries in their Native Language | 0 | - | 4.98 | 181,607 |
| Independence from Whom | 0 | - | 4.99 | 190,938 |
| Subdivisions by Country | 0 | - | 4.85 | 47,120 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 117,113 |
| Megadiverse Countries | 0 | - | 4.96 | 127,211 |
| Countries With the Most English Speakers | 0 | - | 4.88 | 94,918 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 108,016 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 48,052 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 134,033 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 50,344 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 80,753 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 78,007 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 42,070 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,674 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,607 |
| Countries Furthest from the United States | 0 | - | 4.94 | 73,331 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,914 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,767 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,375 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 93,943 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 88,521 |
| World Map Quiz | 0 | - | 4.91 | 52,322 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 107,040 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 120,914 |
| Countries by Founding Story | 0 | - | 4.94 | 69,438 |
| Countries by Road Signs | 0 | - | 4.98 | 46,723 |
| Southernmost Countries of the World | 0 | - | 4.99 | 210,870 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 93,494 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 110,974 |
| Countries With the Most Languages | 0 | - | 4.90 | 179,607 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 89,144 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,632 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 88,920 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 55,545 |
| Tallest Countries North to South | 0 | - | 4.84 | 112,070 |
| Widest Countries East to West | 0 | - | 4.93 | 121,057 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,244 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 161,466 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 73,194 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,671 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 87,322 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 121,462 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,976 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,958 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,570 |
| Countries with Double Letters | 0 | - | 4.96 | 73,834 |
| Countries that End in N | 0 | - | 4.94 | 138,316 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 235,844 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 192,262 |
| Countries with W | 0 | - | 4.97 | 127,154 |
| Countries with Z | 0 | - | 4.98 | 266,420 |
| Countries with Letters Missing | 0 | - | 4.97 | 171,031 |
| Countries That End in U | 0 | - | 4.95 | 110,448 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 93,868 |
| Countries that End in O | 0 | - | 4.92 | 149,723 |
| Countries that End in R | 0 | - | 4.85 | 97,846 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,761 |
| Countries Ending in "IA" | 0 | - | 4.99 | 175,577 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 158,531 |
| Countries by Last Two Letters | 0 | - | 4.90 | 118,523 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 131,262 |
| Countries That End in Y | 0 | - | 4.92 | 178,981 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 164,065 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 123,257 |
| Countries that End in I | 0 | - | 4.92 | 115,592 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 152,488 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,813 |
| Countries That End in NIA | 0 | - | 4.92 | 102,321 |
| Countries That End in BIA | 0 | - | 4.91 | 127,946 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,832 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 111,497 |
| Countries That End in RIA | 0 | - | 4.90 | 102,629 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 102,423 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 206,443 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 122,600 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 113,775 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 80,190 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 45,443 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 94,365 |
