| Countries Settled by Vikings | 0 | - | 4.92 | 121,936 |
| Independence from Whom | 0 | - | 4.99 | 212,677 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,163 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,725 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,836 |
| Countries by Founding Story | 0 | - | 4.95 | 77,629 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,032 |
| Cities by Former Name | 0 | - | 4.83 | 91,919 |
| Recently Independent Countries | 0 | - | 4.98 | 159,755 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,671 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,353 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,805 |
| Countries by Former Name | 0 | - | 4.99 | 125,623 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,123 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,310 |
| European Countries by Clue | 0 | - | 4.92 | 184,032 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 101,410 |
| Countries by Haiku #2 | 0 | - | 4.81 | 44,101 |
| Historical City to Country | 0 | - | 4.85 | 78,790 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,179 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,111 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,627 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,370 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,627 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,766 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 53,938 |
| Former Flags | 0 | - | 4.97 | 108,314 |
| Boundary Waters | 0 | - | 4.92 | 88,694 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,350 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,517 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,111 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,816 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,815 |
| Ancient City to Country | 0 | - | 4.70 | 108,261 |
| City-States | 0 | - | 4.53 | 37,369 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,772 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,193 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,530 |
| Countries by Independence Day | 0 | - | 4.62 | 52,836 |
| Former Countries by Capital | 0 | - | 4.45 | 127,736 |
| Former Countries | 0 | - | 4.77 | 134,092 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,339 |
| Battle to Country | 0 | - | 4.91 | 53,768 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,087 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,861 |
| The Only American Country ... | 0 | - | 4.92 | 122,062 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,579 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,268 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,591 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,216 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,830 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,100 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,719 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,511 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,638 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,398 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,758,074 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,233 |
| Landlocked Countries | 0 | - | 4.99 | 424,161 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 584,367 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,526 |
| Countries by Three Words #3 | 0 | - | 4.80 | 129,487 |
| Countries by Three Words #4 | 0 | - | 4.45 | 101,186 |
| Countries by a Single Clue #1 | 0 | - | 4.75 | 100,940 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 95,285 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,992 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 77,120 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 87,165 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 95,145 |
| Countries by a Single Clue #10 | 0 | - | 4.56 | 67,987 |
| Countries by a Single Clue #11 | 0 | - | 4.61 | 76,708 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 79,141 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,519 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 57,099 |
| Countries by Haiku #1 | 0 | - | 4.52 | 44,303 |
| Roman Provinces on a Map | 0 | - | 4.53 | 37,243 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,342 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,474 |
| WWII Geography | 0 | - | 4.81 | 120,804 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,837 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,253 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,761 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,783 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,149 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,448 |
| World Capitals Quiz | 0 | - | 5.00 | 5,097,071 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,490 |
| Himalayan Countries | 0 | - | 4.94 | 139,650 |
| Andean Countries | 0 | - | 4.94 | 85,122 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,310 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,547 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,877 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,164 |
| Danube Countries | 0 | - | 4.97 | 72,244 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,373 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,668 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,790 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,273 |
| European Landlocked Countries | 0 | - | 4.99 | 147,418 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,029 |
| Countries with the Most Species | 0 | - | 4.99 | 103,449 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,923 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,167 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,696 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,806 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,723 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,450 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,872 |
| Countries in the Alps | 0 | - | 4.87 | 118,528 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,196 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,521 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,835 |
| Guerrillas by Country | 0 | - | 4.40 | 41,200 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,845 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,772 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,115 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,960 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,701 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,322 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,259 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,039 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,777 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,643 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,841 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,415 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,656 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,745 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,436 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,492 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,413 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,443 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,067 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,751 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,406 |
| Largest Countries By Category | 0 | - | 4.97 | 158,593 |
| Countries by Countries | 0 | - | 4.96 | 63,471 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,047 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,357 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,636 |
| Merged Country Flags | 0 | - | 4.88 | 107,205 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,406 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,235 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,945 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,794,281 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,303 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,940 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,693 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,580 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,083 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,669 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,461 |
| Longest International Borders | 0 | - | 4.99 | 265,578 |
| Countries with Three Borders | 0 | - | 4.96 | 36,706 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,272 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,404 |
| Famous Immigrants and Exiles | 0 | - | 4.46 | 23,661 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,519 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,729 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,131 |
| Demonym of Every Country | 0 | - | 4.90 | 61,226 |
| People Born on Islands | 0 | - | 4.39 | 53,020 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,649 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,113 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,203 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,737 |
| Island Countries | 0 | - | 4.99 | 711,924 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.77 | 45,749 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.78 | 33,605 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,898 |
| Northernmost Countries | 0 | - | 4.99 | 363,261 |
| Countries of South America | 0 | - | 5.00 | 930,448 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,838 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,884,476 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,675 |
| "Land" Countries | 0 | - | 4.98 | 337,981 |
| Top World Languages | 0 | - | 4.92 | 827,712 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,673 |
| Biggest First-Level Subdivisions by Area | 0 | - | 4.89 | 27,099 |
| Countries in World War I | 0 | - | 4.88 | 228,852 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,803 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,389,848 |
| Countries by a Single Clue #7 | 0 | - | 4.37 | 70,486 |
| Countries by a Single Clue #9 | 0 | - | 4.37 | 73,278 |
| Countries by a Single Word | 0 | - | 4.69 | 28,916 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,027 |
| All Country Flags of the World | 0 | - | 5.00 | 3,700,294 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,665 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,360 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,831 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,953 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,604 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,788 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,879 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,635 |
| Countries with Megacities | 0 | - | 4.99 | 266,129 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,373 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,822 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,660 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,943 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 51,819 |
