| Spanish-Speaking Countries | 0 | - | 4.95 | 377,136 |
| Countries by Official Language | 0 | - | 4.95 | 196,297 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,039 |
| Countries in their Native Language | 0 | - | 4.99 | 200,012 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,197 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,774 |
| German-Speaking Countries | 0 | - | 4.92 | 146,111 |
| Spanish to English Country Names | 0 | - | 4.86 | 34,068 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,995,086 |
| Landlocked Countries | 0 | - | 4.99 | 427,577 |
| English Speaking Countries | 0 | - | 4.64 | 358,474 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,814,718 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,074 |
| Himalayan Countries | 0 | - | 4.93 | 140,961 |
| Andean Countries | 0 | - | 4.94 | 85,868 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,978 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,591 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,522 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,740 |
| Danube Countries | 0 | - | 4.97 | 72,594 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,850 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,004 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,505 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,977 |
| European Landlocked Countries | 0 | - | 4.99 | 147,808 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,583 |
| Countries with the Most Species | 0 | - | 4.99 | 103,663 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,689 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,826 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,965 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,947 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,699 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,159 |
| Countries in the Alps | 0 | - | 4.87 | 119,023 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,083 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,222 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,083 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,209 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,178 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,416 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,629 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,026 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,529 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,342 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,969 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,847 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,696 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,950 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,051 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,213 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,761 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,685 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,875 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,476 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,595 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,635 |
| Largest Countries By Category | 0 | - | 4.97 | 159,148 |
| Countries by Countries | 0 | - | 4.97 | 63,837 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,497 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,455 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,716 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,573 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,591 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,270 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 125,010 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,915 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,549 |
| Island Countries | 0 | - | 4.99 | 713,125 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,553 |
| Northernmost Countries | 0 | - | 4.99 | 364,761 |
| Countries of South America | 0 | - | 5.00 | 934,749 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,034 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,176 |
| "Land" Countries | 0 | - | 4.98 | 339,132 |
| Top World Languages | 0 | - | 4.92 | 831,805 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,496 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,068 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,602 |
| Countries with Megacities | 0 | - | 4.99 | 268,075 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,252 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,392 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,590 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,491 |
| Independence from Whom | 0 | - | 4.99 | 213,489 |
| Subdivisions by Country | 0 | - | 4.87 | 50,680 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,732 |
| Megadiverse Countries | 0 | - | 4.96 | 149,622 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,592 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,836 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,268 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,521 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,944 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,349 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,644 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,196 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,293 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,857 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,511 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,524 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,240 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,660 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,999 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,841 |
| World Map Quiz | 0 | - | 4.81 | 65,968 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 160,085 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,848 |
| Countries by Founding Story | 0 | - | 4.95 | 77,933 |
| Countries by Road Signs | 0 | - | 4.98 | 54,477 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,591 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,273 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,745 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,021 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,597 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,709 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,890 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,781 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,994 |
| Widest Countries East to West | 0 | - | 4.92 | 130,893 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,637 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,453 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,580 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,184 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,309 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,641 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,547 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,931 |
| Countries with Double Letters | 0 | - | 4.96 | 97,738 |
| Countries that End in N | 0 | - | 4.95 | 172,735 |
| Countries with Five Letters | 0 | - | 4.96 | 284,783 |
| Countries with Six Letters | 0 | - | 4.94 | 215,069 |
| Countries with W | 0 | - | 4.96 | 161,396 |
| Countries with Z | 0 | - | 4.98 | 293,138 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,763 |
| Countries That End in U | 0 | - | 4.95 | 121,443 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,514 |
| Countries that End in O | 0 | - | 4.92 | 160,412 |
| Countries that End in R | 0 | - | 4.87 | 119,306 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,082 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,232 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,344 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,275 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,945 |
| Countries That End in Y | 0 | - | 4.91 | 186,194 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,478 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,464 |
| Countries that End in I | 0 | - | 4.94 | 135,452 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,415 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,172 |
| Countries That End in NIA | 0 | - | 4.92 | 110,185 |
| Countries That End in BIA | 0 | - | 4.93 | 149,780 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,983 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,933 |
| Countries That End in RIA | 0 | - | 4.93 | 127,188 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,579 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,039 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,443 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,909 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,468 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,944 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,504 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,618 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,097 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,760 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,954 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,667 |
| Countries that End in L | 0 | - | 4.94 | 157,283 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,744 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,389 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,910 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,178 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,564 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,725 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,355 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,556 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,456 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,235 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,347 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,307 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,979 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,887 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,385 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,685 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,586 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,122 |
| One Border Countries | 0 | - | 4.98 | 472,762 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,854,850 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,661,657 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,336 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,494 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,585 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,871 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,127 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,403 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,753 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,995 |
| Countries by National Anthem | 0 | - | 4.92 | 71,447 |
| NATO Countries | 0 | - | 4.98 | 284,165 |
| EU Countries Quiz | 0 | - | 4.99 | 279,081 |
| Recently Independent Countries | 0 | - | 4.98 | 160,559 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,270 |
