| Landlocked Countries | 0 | - | 4.99 | 427,492 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,989,303 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,334 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 113,681 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 91,591 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,022 |
| Himalayan Countries | 0 | - | 4.93 | 140,928 |
| Andean Countries | 0 | - | 4.94 | 85,856 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,963 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,567 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,507 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,723 |
| Danube Countries | 0 | - | 4.97 | 72,580 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,842 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,998 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,490 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,962 |
| European Landlocked Countries | 0 | - | 4.99 | 147,801 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,571 |
| Countries with the Most Species | 0 | - | 4.99 | 103,658 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,677 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,824 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,962 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,943 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,696 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,153 |
| Countries in the Alps | 0 | - | 4.87 | 119,012 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,063 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,205 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,077 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,201 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,163 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,409 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,627 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,016 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,523 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,333 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,966 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,843 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,690 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,943 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,045 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,197 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,755 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,642 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,866 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,452 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,571 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,631 |
| Largest Countries By Category | 0 | - | 4.97 | 159,132 |
| Countries by Countries | 0 | - | 4.97 | 63,829 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,487 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,452 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,715 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,545 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,580 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,263 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,814,162 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,840 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,112 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,516 |
| Island Countries | 0 | - | 4.99 | 713,098 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,464 |
| Northernmost Countries | 0 | - | 4.99 | 364,719 |
| Countries of South America | 0 | - | 5.00 | 934,662 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,922 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,905 |
| "Land" Countries | 0 | - | 4.98 | 339,097 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,860 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,578 |
| Countries with Megacities | 0 | - | 4.99 | 268,016 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,225 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,375 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,554 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,479 |
| Countries by Official Language | 0 | - | 4.95 | 196,279 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,018 |
| Countries in their Native Language | 0 | - | 4.99 | 200,002 |
| Independence from Whom | 0 | - | 4.99 | 213,472 |
| Subdivisions by Country | 0 | - | 4.87 | 50,676 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,721 |
| Megadiverse Countries | 0 | - | 4.96 | 149,545 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,177 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,591 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,831 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,266 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,513 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,940 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,339 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,642 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,188 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,292 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,838 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,509 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,521 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,232 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,654 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,989 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,819 |
| World Map Quiz | 0 | - | 4.81 | 65,959 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 160,051 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,839 |
| Countries by Founding Story | 0 | - | 4.95 | 77,927 |
| Countries by Road Signs | 0 | - | 4.98 | 54,472 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,577 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,264 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,732 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,008 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,585 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,700 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,881 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,778 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,986 |
| Widest Countries East to West | 0 | - | 4.92 | 130,887 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,637 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,437 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,576 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,177 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,191 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,633 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,544 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,929 |
| Countries with Double Letters | 0 | - | 4.96 | 97,719 |
| Countries that End in N | 0 | - | 4.95 | 172,709 |
| Countries with Five Letters | 0 | - | 4.96 | 284,750 |
| Countries with Six Letters | 0 | - | 4.94 | 215,045 |
| Countries with W | 0 | - | 4.96 | 161,374 |
| Countries with Z | 0 | - | 4.98 | 293,110 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,746 |
| Countries That End in U | 0 | - | 4.95 | 121,431 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,495 |
| Countries that End in O | 0 | - | 4.92 | 160,403 |
| Countries that End in R | 0 | - | 4.87 | 119,303 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,079 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,210 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,172 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,261 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,934 |
| Countries That End in Y | 0 | - | 4.91 | 186,191 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,450 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,459 |
| Countries that End in I | 0 | - | 4.94 | 135,447 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,396 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,166 |
| Countries That End in NIA | 0 | - | 4.92 | 110,173 |
| Countries That End in BIA | 0 | - | 4.93 | 149,771 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,974 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,929 |
| Countries That End in RIA | 0 | - | 4.93 | 127,177 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,571 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,018 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,433 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,901 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,459 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,941 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,485 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,617 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,087 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,758 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,940 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,656 |
| Countries that End in L | 0 | - | 4.94 | 157,275 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,699 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,388 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,904 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,175 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,560 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,716 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,341 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,549 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,445 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,227 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,339 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,306 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,976 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,885 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,381 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,459 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,077 |
| One Border Countries | 0 | - | 4.98 | 472,708 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,770 |
| Countries with the Highest Elevation with Exceptions | 0 | - | 4.70 | 59,769 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,854,481 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,661,176 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,490 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,571 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,858 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,047 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,392 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,750 |
| Countries by National Anthem | 0 | - | 4.92 | 71,447 |
| NATO Countries | 0 | - | 4.98 | 284,119 |
| EU Countries Quiz | 0 | - | 4.99 | 279,028 |
| Recently Independent Countries | 0 | - | 4.98 | 160,543 |
| French-Speaking Countries | 0 | - | 4.85 | 271,951 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,266 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,304 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 292,018 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,159 |
| German-Speaking Countries | 0 | - | 4.92 | 146,106 |
