| Spanish-Speaking Countries | 0 | - | 4.95 | 376,273 |
| Countries by Official Language | 0 | - | 4.95 | 195,760 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,280 |
| Countries in their Native Language | 0 | - | 4.99 | 199,538 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,750 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,843,858 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,646,395 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,625 |
| French-Speaking Countries | 0 | - | 4.85 | 271,418 |
| German-Speaking Countries | 0 | - | 4.92 | 145,938 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,716 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,412 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,864 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,700 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,772,671 |
| Landlocked Countries | 0 | - | 4.99 | 424,368 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 584,871 |
| English Speaking Countries | 0 | - | 4.64 | 358,007 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,795,507 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,574 |
| Himalayan Countries | 0 | - | 4.94 | 139,730 |
| Andean Countries | 0 | - | 4.94 | 85,162 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,339 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,592 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,911 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,198 |
| Danube Countries | 0 | - | 4.97 | 72,258 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,396 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,689 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,831 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,326 |
| European Landlocked Countries | 0 | - | 4.99 | 147,443 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,063 |
| Countries with the Most Species | 0 | - | 4.99 | 103,468 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,199 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,707 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,818 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,736 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,465 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,892 |
| Countries in the Alps | 0 | - | 4.87 | 118,566 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,262 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,578 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,850 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,866 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,792 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,126 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,075 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,728 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,332 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,054 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,785 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,655 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,437 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,671 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,761 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,484 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,512 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,500 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,475 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,153 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,809 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,419 |
| Largest Countries By Category | 0 | - | 4.97 | 158,622 |
| Countries by Countries | 0 | - | 4.96 | 63,495 |
| Pixelated World Map | 0 | - | 5.00 | 143,934 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,074 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,361 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,640 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,398 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,649 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,782 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,509 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,266 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,967 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,860 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,641 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,921 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,992 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,065 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,874 |
| Island Countries | 0 | - | 4.99 | 712,006 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,136 |
| Northernmost Countries | 0 | - | 4.99 | 363,354 |
| Countries of South America | 0 | - | 5.00 | 930,755 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,137 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,885,092 |
| "Land" Countries | 0 | - | 4.98 | 338,029 |
| Top World Languages | 0 | - | 4.92 | 828,004 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,025 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,444 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,407 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,095 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,762 |
| Countries with Megacities | 0 | - | 4.99 | 266,318 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,480 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,889 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,773 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,999 |
| Independence from Whom | 0 | - | 4.99 | 212,727 |
| Subdivisions by Country | 0 | - | 4.87 | 50,561 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,199 |
| Megadiverse Countries | 0 | - | 4.96 | 135,190 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,480 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,379 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,179 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,432 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,749 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,888 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,501 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,770 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,221 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,176 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,303 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,369 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,090 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,512 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,626 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,986 |
| World Map Quiz | 0 | - | 4.81 | 65,426 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,553 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,568 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,438 |
| Countries by Founding Story | 0 | - | 4.95 | 77,656 |
| Countries by Road Signs | 0 | - | 4.98 | 54,248 |
| Countries That Do Not Border | 0 | - | 4.99 | 60,726 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,972 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,933 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,425 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,203 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,278 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,400 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,590 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,616 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,035 |
| Widest Countries East to West | 0 | - | 4.92 | 130,299 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,558 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,096 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,463 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,977 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,851 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,354 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,465 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,862 |
| Countries With the Tallest People | 0 | - | 4.93 | 95,129 |
| Countries with Double Letters | 0 | - | 4.96 | 96,788 |
| Countries that End in N | 0 | - | 4.95 | 171,677 |
| Countries with Five Letters | 0 | - | 4.96 | 283,377 |
| Countries with Six Letters | 0 | - | 4.94 | 214,141 |
| Countries with W | 0 | - | 4.96 | 160,734 |
| Countries with Z | 0 | - | 4.98 | 292,108 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,086 |
| Countries That End in U | 0 | - | 4.95 | 121,070 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,890 |
| Countries that End in O | 0 | - | 4.92 | 159,717 |
| Countries that End in R | 0 | - | 4.87 | 119,108 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,854 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,566 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,995 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,706 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,636 |
| Countries That End in Y | 0 | - | 4.91 | 186,021 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,275 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,126 |
| Countries that End in I | 0 | - | 4.94 | 135,249 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,449 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,972 |
| Countries That End in NIA | 0 | - | 4.92 | 109,956 |
| Countries That End in BIA | 0 | - | 4.93 | 149,451 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,384 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,659 |
| Countries That End in RIA | 0 | - | 4.93 | 126,975 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,262 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,243 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,020 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,456 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,024 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,727 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,226 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,507 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,775 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,577 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,580 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,265 |
| Countries that End in L | 0 | - | 4.94 | 157,029 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,952 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,316 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,569 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,361 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,218 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,203 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,992 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,337 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,122 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,808 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,106 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,190 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,777 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,155 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,071 |
