| Countries Settled by Vikings | 0 | - | 4.93 | 120,773 |
| Independence from Whom | 0 | - | 4.99 | 209,528 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,609 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,946 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,620 |
| Countries by Founding Story | 0 | - | 4.95 | 76,463 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,104 |
| Cities by Former Name | 0 | - | 4.84 | 90,888 |
| Recently Independent Countries | 0 | - | 4.98 | 157,892 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,353 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,953 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,641 |
| Countries by Former Name | 0 | - | 4.99 | 124,180 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,213 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,059 |
| European Countries by Clue | 0 | - | 4.92 | 182,310 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 100,118 |
| Countries by Haiku #2 | 0 | - | 4.82 | 43,495 |
| Historical City to Country | 0 | - | 4.84 | 78,092 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,427 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,238 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,247 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,634 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,438 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,825 |
| Countries of Europe before World War II with a Map | 0 | - | 4.94 | 52,196 |
| Former Flags | 0 | - | 4.97 | 106,552 |
| Boundary Waters | 0 | - | 4.92 | 88,003 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,790 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,197 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,163 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,781 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,668 |
| Ancient City to Country | 0 | - | 4.70 | 107,571 |
| City-States | 0 | - | 4.53 | 37,076 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,464 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,942 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,210 |
| Countries by Independence Day | 0 | - | 4.56 | 52,587 |
| Former Countries by Capital | 0 | - | 4.45 | 126,977 |
| Former Countries | 0 | - | 4.75 | 132,602 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,937 |
| Battle to Country | 0 | - | 4.91 | 52,456 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,153 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,236 |
| The Only American Country ... | 0 | - | 4.92 | 120,676 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,105 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,613 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 86,288 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,147 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 86,126 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,810 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,316 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,272 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,010 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,930 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,866,852 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,001 |
| Landlocked Countries | 0 | - | 4.99 | 413,030 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 551,179 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,645 |
| Countries by Three Words #3 | 0 | - | 4.79 | 126,470 |
| Countries by Three Words #4 | 0 | - | 4.43 | 84,987 |
| Countries by a Single Clue #1 | 0 | - | 4.77 | 100,185 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 94,497 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,370 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 76,596 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 86,531 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 94,495 |
| Countries by a Single Clue #10 | 0 | - | 4.55 | 67,560 |
| Countries by a Single Clue #11 | 0 | - | 4.61 | 76,171 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 78,617 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 64,990 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,662 |
| Countries by Haiku #1 | 0 | - | 4.52 | 44,000 |
| Roman Provinces on a Map | 0 | - | 4.54 | 36,518 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,737 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,145 |
| WWII Geography | 0 | - | 4.81 | 119,278 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,117 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,925 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,498 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,860 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,000 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,111 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,896 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,331 |
| Himalayan Countries | 0 | - | 4.95 | 135,121 |
| Andean Countries | 0 | - | 4.94 | 82,703 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,119 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,041 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,797 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,502 |
| Danube Countries | 0 | - | 4.97 | 71,015 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,673 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,473 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,332 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,246 |
| European Landlocked Countries | 0 | - | 4.99 | 145,688 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,082 |
| Countries with the Most Species | 0 | - | 4.99 | 95,205 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,632 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,239 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,181 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,341 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,916 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,532 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,890 |
| Countries in the Alps | 0 | - | 4.87 | 116,717 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,498 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,121 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,959 |
| Guerrillas by Country | 0 | - | 4.40 | 40,937 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,345 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,079 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,944 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,494 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,701 |
| Largest Country by Body of Water | 0 | - | 4.95 | 56,648 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,089 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,991 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,172 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,006 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,367 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,389 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,694 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,696 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,925 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,582 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,212 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,706 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,933 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,425 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,555 |
| Largest Countries By Category | 0 | - | 4.97 | 156,658 |
| Countries by Countries | 0 | - | 4.96 | 62,189 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,262 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,940 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,309 |
| Merged Country Flags | 0 | - | 4.88 | 105,937 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,451 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,030 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,683 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,711,181 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,652 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,462 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,492 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,218 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,409 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,204 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,563 |
| Longest International Borders | 0 | - | 4.99 | 263,408 |
| Countries with Three Borders | 0 | - | 4.96 | 36,141 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,570 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,618 |
| Famous Immigrants and Exiles | 0 | - | 4.48 | 20,430 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,298 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,427 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,841 |
| Demonym of Every Country | 0 | - | 4.91 | 58,580 |
| People Born on Islands | 0 | - | 4.39 | 52,731 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,224 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,504 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,890 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,092 |
| Island Countries | 0 | - | 4.99 | 707,327 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.74 | 45,106 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.77 | 32,906 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,594 |
| Northernmost Countries | 0 | - | 4.99 | 357,358 |
| Countries of South America | 0 | - | 5.00 | 913,671 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,030 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,845 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,116 |
| "Land" Countries | 0 | - | 4.98 | 333,469 |
| Top World Languages | 0 | - | 4.92 | 812,218 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,899 |
| Biggest First-Level Subdivisions by Area | 0 | - | 4.89 | 26,560 |
| Countries in World War I | 0 | - | 4.88 | 226,438 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,273 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,564 |
| Countries by a Single Clue #7 | 0 | - | 4.37 | 70,070 |
| Countries by a Single Clue #9 | 0 | - | 4.37 | 72,853 |
| Countries by a Single Word | 0 | - | 4.69 | 28,648 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,283 |
| All Country Flags of the World | 0 | - | 5.00 | 3,595,928 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,135 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,201 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,401 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,356 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 62,994 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,831 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,313 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,912 |
| Countries with Megacities | 0 | - | 4.99 | 246,308 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,833 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,756 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,290 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,696 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 50,539 |
