| Countries Settled by Vikings | 0 | - | 4.93 | 121,916 |
| Independence from Whom | 0 | - | 4.99 | 212,579 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,079 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,702 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,753 |
| Countries by Founding Story | 0 | - | 4.95 | 77,545 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,994 |
| Cities by Former Name | 0 | - | 4.83 | 91,891 |
| Recently Independent Countries | 0 | - | 4.98 | 159,714 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,598 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,258 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,741 |
| Countries by Former Name | 0 | - | 4.99 | 125,572 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,001 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,260 |
| European Countries by Clue | 0 | - | 4.92 | 184,010 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 101,385 |
| Countries by Haiku #2 | 0 | - | 4.81 | 44,079 |
| Historical City to Country | 0 | - | 4.85 | 78,763 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,161 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,089 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,620 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,319 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,594 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,741 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 53,892 |
| Former Flags | 0 | - | 4.97 | 108,271 |
| Boundary Waters | 0 | - | 4.92 | 88,674 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,332 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,488 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,065 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,794 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,800 |
| Ancient City to Country | 0 | - | 4.70 | 108,245 |
| City-States | 0 | - | 4.53 | 37,362 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,769 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,187 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,525 |
| Countries by Independence Day | 0 | - | 4.62 | 52,831 |
| Former Countries by Capital | 0 | - | 4.45 | 127,714 |
| Former Countries | 0 | - | 4.77 | 134,074 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,311 |
| Battle to Country | 0 | - | 4.91 | 53,736 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,066 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,848 |
| The Only American Country ... | 0 | - | 4.92 | 122,036 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,552 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,250 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,574 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,198 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,816 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,046 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,579 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,460 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,594 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,359 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,736,861 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,228 |
| Landlocked Countries | 0 | - | 4.99 | 423,868 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 583,575 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,498 |
| Countries by Three Words #3 | 0 | - | 4.80 | 129,448 |
| Countries by Three Words #4 | 0 | - | 4.45 | 101,151 |
| Countries by a Single Clue #1 | 0 | - | 4.75 | 100,922 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 95,264 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,979 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 77,107 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 87,147 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 95,134 |
| Countries by a Single Clue #10 | 0 | - | 4.56 | 67,980 |
| Countries by a Single Clue #11 | 0 | - | 4.61 | 76,691 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 79,132 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,508 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 57,083 |
| Countries by Haiku #1 | 0 | - | 4.52 | 44,281 |
| Roman Provinces on a Map | 0 | - | 4.53 | 37,220 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,314 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,420 |
| WWII Geography | 0 | - | 4.81 | 120,775 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,822 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,224 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,718 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,735 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,144 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,440 |
| World Capitals Quiz | 0 | - | 5.00 | 5,095,154 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,372 |
| Himalayan Countries | 0 | - | 4.94 | 139,547 |
| Andean Countries | 0 | - | 4.94 | 85,071 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,253 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,470 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,814 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,125 |
| Danube Countries | 0 | - | 4.97 | 72,215 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,313 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,630 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,717 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,226 |
| European Landlocked Countries | 0 | - | 4.99 | 147,388 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,988 |
| Countries with the Most Species | 0 | - | 4.99 | 103,425 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,921 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,116 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,682 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,794 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,704 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,441 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,854 |
| Countries in the Alps | 0 | - | 4.87 | 118,499 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,092 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,464 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,814 |
| Guerrillas by Country | 0 | - | 4.40 | 41,196 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,816 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,750 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,098 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,925 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,675 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,302 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,252 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,020 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,764 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,632 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,830 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,392 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,640 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,726 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,385 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,476 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,266 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,367 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,939 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,672 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,384 |
| Largest Countries By Category | 0 | - | 4.97 | 158,553 |
| Countries by Countries | 0 | - | 4.96 | 63,445 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,018 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,350 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,624 |
| Merged Country Flags | 0 | - | 4.88 | 107,172 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,296 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,212 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,909 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,460 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,268 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,930 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,663 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,574 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,064 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,573 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,445 |
| Longest International Borders | 0 | - | 4.99 | 265,531 |
| Countries with Three Borders | 0 | - | 4.96 | 36,693 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,254 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,374 |
| Famous Immigrants and Exiles | 0 | - | 4.46 | 23,644 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,491 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,698 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,123 |
| Demonym of Every Country | 0 | - | 4.90 | 61,168 |
| People Born on Islands | 0 | - | 4.39 | 53,010 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,295 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,419 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,122 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,598 |
| Island Countries | 0 | - | 4.99 | 711,793 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.77 | 45,735 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.78 | 33,586 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,516 |
| Northernmost Countries | 0 | - | 4.99 | 363,102 |
| Countries of South America | 0 | - | 5.00 | 930,015 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,351 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,540 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,659 |
| "Land" Countries | 0 | - | 4.98 | 337,896 |
| Top World Languages | 0 | - | 4.92 | 827,291 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,657 |
| Biggest First-Level Subdivisions by Area | 0 | - | 4.89 | 27,087 |
| Countries in World War I | 0 | - | 4.88 | 228,785 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,756 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,638 |
| Countries by a Single Clue #7 | 0 | - | 4.37 | 70,472 |
| Countries by a Single Clue #9 | 0 | - | 4.37 | 73,265 |
| Countries by a Single Word | 0 | - | 4.69 | 28,906 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,705 |
| All Country Flags of the World | 0 | - | 5.00 | 3,697,627 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,647 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,355 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,784 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,939 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,591 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,333 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,744 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,453 |
| Countries with Megacities | 0 | - | 4.99 | 265,897 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,249 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,756 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,504 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,854 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 51,792 |
