| Countries Settled by Vikings | 0 | - | 4.93 | 120,743 |
| Independence from Whom | 0 | - | 4.99 | 209,441 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,577 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,583 |
| Countries by Founding Story | 0 | - | 4.95 | 76,440 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,079 |
| Cities by Former Name | 0 | - | 4.84 | 90,859 |
| Recently Independent Countries | 0 | - | 4.98 | 157,854 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,291 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,853 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,554 |
| Countries by Former Name | 0 | - | 4.99 | 124,138 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,094 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,003 |
| European Countries by Clue | 0 | - | 4.92 | 182,280 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 100,098 |
| Countries by Haiku #2 | 0 | - | 4.82 | 43,482 |
| Historical City to Country | 0 | - | 4.84 | 78,080 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,404 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,217 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,237 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,588 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,409 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,802 |
| Countries of Europe before World War II with a Map | 0 | - | 4.94 | 52,152 |
| Former Flags | 0 | - | 4.97 | 106,515 |
| Boundary Waters | 0 | - | 4.92 | 87,990 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,785 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,166 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,121 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,755 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,642 |
| Ancient City to Country | 0 | - | 4.70 | 107,548 |
| City-States | 0 | - | 4.53 | 37,069 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,457 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,936 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,194 |
| Countries by Independence Day | 0 | - | 4.56 | 52,582 |
| Former Countries by Capital | 0 | - | 4.45 | 126,956 |
| Former Countries | 0 | - | 4.75 | 132,584 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,904 |
| Battle to Country | 0 | - | 4.91 | 52,423 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,127 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,220 |
| The Only American Country ... | 0 | - | 4.92 | 120,646 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,063 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,561 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 85,957 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,112 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 86,102 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,747 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,280 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,224 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 69,975 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,893 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,847,135 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,001 |
| Landlocked Countries | 0 | - | 4.99 | 412,835 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,505 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,620 |
| Countries by Three Words #3 | 0 | - | 4.79 | 126,438 |
| Countries by Three Words #4 | 0 | - | 4.43 | 84,972 |
| Countries by a Single Clue #1 | 0 | - | 4.77 | 100,164 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 94,475 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,354 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 76,581 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 86,516 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 94,484 |
| Countries by a Single Clue #10 | 0 | - | 4.55 | 67,551 |
| Countries by a Single Clue #11 | 0 | - | 4.61 | 76,159 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 78,605 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 64,975 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,650 |
| Countries by Haiku #1 | 0 | - | 4.52 | 43,989 |
| Roman Provinces on a Map | 0 | - | 4.54 | 36,488 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,695 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,090 |
| WWII Geography | 0 | - | 4.81 | 119,249 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,102 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,894 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,455 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,835 |
| Cities by Founder and Date | 0 | - | 4.56 | 28,995 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,097 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,146 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,214 |
| Himalayan Countries | 0 | - | 4.95 | 135,036 |
| Andean Countries | 0 | - | 4.94 | 82,653 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,076 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,972 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,747 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,453 |
| Danube Countries | 0 | - | 4.97 | 70,989 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,632 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,450 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,275 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,183 |
| European Landlocked Countries | 0 | - | 4.99 | 145,662 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,039 |
| Countries with the Most Species | 0 | - | 4.99 | 95,181 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,626 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,180 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,172 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,331 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,905 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,502 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,861 |
| Countries in the Alps | 0 | - | 4.87 | 116,675 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,460 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,054 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,935 |
| Guerrillas by Country | 0 | - | 4.40 | 40,929 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,317 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,059 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,933 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,459 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,677 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,153 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,085 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,963 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,164 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,994 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,360 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,356 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,667 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,668 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,851 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,559 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,197 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,658 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,805 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,348 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,530 |
| Largest Countries By Category | 0 | - | 4.97 | 156,598 |
| Countries by Countries | 0 | - | 4.96 | 62,158 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,200 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,929 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,305 |
| Merged Country Flags | 0 | - | 4.88 | 105,909 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,367 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 97,993 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,648 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,305 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,622 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,454 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,475 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,211 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,399 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,122 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,539 |
| Longest International Borders | 0 | - | 4.99 | 263,356 |
| Countries with Three Borders | 0 | - | 4.96 | 36,128 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,550 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,598 |
| Famous Immigrants and Exiles | 0 | - | 4.48 | 20,429 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,270 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,378 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,827 |
| Demonym of Every Country | 0 | - | 4.91 | 58,560 |
| People Born on Islands | 0 | - | 4.39 | 52,717 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,969 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,568,762 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,810 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,959 |
| Island Countries | 0 | - | 4.99 | 707,207 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.74 | 45,085 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.77 | 32,888 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,263 |
| Northernmost Countries | 0 | - | 4.99 | 357,208 |
| Countries of South America | 0 | - | 5.00 | 913,286 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,469 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,844,925 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,104 |
| "Land" Countries | 0 | - | 4.98 | 333,402 |
| Top World Languages | 0 | - | 4.92 | 811,885 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,886 |
| Biggest First-Level Subdivisions by Area | 0 | - | 4.89 | 26,551 |
| Countries in World War I | 0 | - | 4.88 | 226,021 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,218 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,896 |
| Countries by a Single Clue #7 | 0 | - | 4.37 | 70,059 |
| Countries by a Single Clue #9 | 0 | - | 4.37 | 72,838 |
| Countries by a Single Word | 0 | - | 4.69 | 28,641 |
| Europe Map Quiz | 0 | - | 5.00 | 4,726,911 |
| All Country Flags of the World | 0 | - | 5.00 | 3,593,580 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,122 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,200 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,369 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,336 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 62,977 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,392 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,985 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,850 |
| Countries with Megacities | 0 | - | 4.99 | 246,139 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,765 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,726 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,229 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,661 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 50,515 |
