| Island Countries Quiz | 0 | - | 4.99 | 664,727 |
| Independence from Whom | 0 | - | 4.99 | 187,528 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,568 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,123 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,336 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,499 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,798 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,386 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,636 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 61,795 |
| Countries by Founding Story | 0 | - | 4.93 | 55,410 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 40,208 |
| Islands by Shape #2 | 0 | - | 4.86 | 45,160 |
| Cities by Former Name | 0 | - | 4.86 | 72,058 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 145,446 |
| Countries of the World in 1900 | 0 | - | 4.87 | 67,486 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 172,105 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 129,437 |
| Countries by Former Name | 0 | - | 4.99 | 114,650 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.87 | 135,122 |
| Historical City to Country | 0 | - | 4.82 | 72,708 |
| Boundary Waters | 0 | - | 4.93 | 81,555 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 75,739 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.92 | 46,097 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 52,011 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 60,830 |
| Countries Settled by Vikings | 0 | - | 4.93 | 112,096 |
| Warsaw Pact Countries | 0 | - | 4.84 | 80,457 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 87,871 |
| Countries of the World in 1444 | 0 | - | 4.98 | 50,515 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.81 | 50,043 |
| Countries of Europe before World War II with a Map | 0 | - | 4.94 | 40,450 |
| Former Flags | 0 | - | 4.98 | 82,222 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,562 |
| Most Populous Islands | 0 | - | 4.71 | 113,387 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,467 |
| Ancient City to Country | 0 | - | 4.76 | 101,457 |
| City-States | 0 | - | 4.54 | 35,013 |
| Damaged and Destroyed Cities | 0 | - | 4.41 | 41,797 |
| City Where It Happened #2 | 0 | - | 4.44 | 50,441 |
| City Where It Happened #3 | 0 | - | 4.53 | 37,276 |
| Countries by Independence Day Quiz | 0 | - | 4.63 | 44,612 |
| Former Countries by Capital | 0 | - | 4.44 | 104,238 |
| Former Countries | 0 | - | 4.71 | 125,139 |
| Guerrillas by Country | 0 | - | 4.45 | 38,724 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,363,575 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 329,641 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 69,601 |
| Battle to Country | 0 | - | 4.92 | 36,138 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 365,928 |
| Name a Valid Island Country | 0 | - | 4.96 | 103,589 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 134,906 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 63,757 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 50,300 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 59,573 |
| World Geography on a Map #1 | 0 | - | 4.93 | 67,845 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 84,594 |
| Islands by Largest City #2 | 0 | - | 4.72 | 26,933 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,595 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 110,650 |
| Cities by Founder and Date | 0 | - | 4.55 | 27,986 |
| City Where It Happened #1 | 0 | - | 4.28 | 102,281 |
| World Capitals Quiz | 0 | - | 5.00 | 4,535,544 |
| Members of the Arab League | 0 | - | 4.85 | 64,482 |
| Sahara Desert Countries | 0 | - | 4.97 | 128,828 |
| Himalayan Countries | 0 | - | 4.95 | 106,764 |
| Andean Countries | 0 | - | 4.91 | 59,379 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,431 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,216 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,584 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,504 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,817 |
| Danube Countries | 0 | - | 4.96 | 56,970 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,991 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,098 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,001 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,926 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,192 |
| European Landlocked Countries | 0 | - | 4.99 | 136,369 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,333 |
| Countries with the Most Species | 0 | - | 4.99 | 89,692 |
| Countries Unconquered since 1850 | 0 | - | 4.38 | 62,515 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,842 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,870 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,161 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,691 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,655 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,925 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,530 |
| Countries in the Alps | 0 | - | 4.84 | 103,281 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,906 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,333 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,945 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,998 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,464 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,970 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,115 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,484 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,518 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 31,765 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,067 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,828 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,802 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,855 |
| Most Recent Country To ... | 0 | - | 4.34 | 51,959 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,174 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,340 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,905 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,350 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,660 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,726 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,336 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,093 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,571 |
| Largest Countries By Category | 0 | - | 4.97 | 145,721 |
| Countries by Countries | 0 | - | 4.96 | 55,133 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,123,203 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,374 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,968 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,916 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.79 | 36,624 |
| All Countries by Population With a Map | 0 | - | 4.99 | 63,524 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 77,380 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,927 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,192,706 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 135,314 |
| Western Europe Map Quiz | 0 | - | 4.86 | 89,362 |
| Tourist Attraction by Negative Review | 0 | - | 4.91 | 60,139 |
| Who Controls It? #1 | 0 | - | 4.84 | 45,685 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 182,239 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,505 |
| Longest International Borders | 0 | - | 4.99 | 235,265 |
| Countries with Three Borders | 0 | - | 4.96 | 31,785 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,396 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 40,752 |
| Famous Immigrants and Exiles | 0 | - | 4.53 | 19,729 |
| Roman Provinces on a Map | 0 | - | 4.52 | 32,131 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 94,480 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 101,243 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.87 | 34,603 |
| Demonym of Every Country | 0 | - | 4.90 | 50,212 |
| Islands by Shape #1 | 0 | - | 4.27 | 71,683 |
| Islands by Picture | 0 | - | 4.30 | 92,988 |
| Islands by Wikipedia Descriptions | 0 | - | 4.52 | 35,282 |
| Name a Valid Island | 0 | - | 4.65 | 55,012 |
| Island Superlatives | 0 | - | 4.58 | 32,770 |
| WWII Geography | 0 | - | 4.81 | 100,274 |
| The Same Prefixes - Geography | 0 | - | 4.51 | 42,639 |
| "Second Best" Geography Edition #1 | 0 | - | 4.65 | 58,864 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,395,852 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,004 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,024 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.75 | 40,332 |
| Biggest Countries by Area | 0 | - | 5.00 | 940,212 |
| Northernmost Countries | 0 | - | 4.99 | 329,268 |
| Countries of South America | 0 | - | 5.00 | 802,180 |
| Countries of Oceania | 0 | - | 5.00 | 903,979 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,592,467 |
| Top World Languages | 0 | - | 4.92 | 715,943 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 29,601 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 48,755 |
| Islands A-Z | 0 | - | 4.46 | 106,293 |
| Analogies of Countries #1 | 0 | - | 4.88 | 62,164 |
| Five Letter Geography #4 | 0 | - | 4.83 | 67,252 |
| Name a Valid Answer - Geography | 0 | - | 4.92 | 78,213 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,592 |
| Countries with Megacities | 0 | - | 4.99 | 199,772 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,381 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,980 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 96,978 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,950 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,532 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.98 | 42,449 |
| Home Cities in History Quiz #1 | 0 | - | 4.16 | 16,012 |
| Global Cities on a World Map | 0 | - | 4.92 | 92,045 |
| Cities Where Famous People Died | 0 | - | 4.46 | 31,507 |
| Find the City #1 | 0 | - | 4.97 | 34,947 |
| Northernmost Capital Cities | 0 | - | 4.98 | 95,055 |
| Most Remote Capital Cities | 0 | - | 4.90 | 44,289 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,037 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 92,104 |
| Same Letter Country and Capital | 0 | - | 4.99 | 128,794 |
| Countries by Capital City | 0 | - | 4.99 | 50,446 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 66,556 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 105,651 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 73,708 |
| Moved Capital Cities | 0 | - | 4.96 | 67,471 |
| Countries by Official Language | 0 | - | 4.96 | 174,134 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,200 |
| Countries in their Native Language | 0 | - | 4.98 | 179,374 |
| Subdivisions by Country | 0 | - | 4.82 | 46,685 |
| Countries in World War I | 0 | - | 4.88 | 210,969 |
| Megadiverse Countries | 0 | - | 4.96 | 126,154 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 209,821 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,471 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,633 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,670 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,670 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,465 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,935 |
