| Countries Settled by Vikings | 0 | - | 4.93 | 121,288 |
| Independence from Whom | 0 | - | 4.99 | 211,322 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,712 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,381 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,981 |
| Countries by Founding Story | 0 | - | 4.95 | 77,072 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,598 |
| Cities by Former Name | 0 | - | 4.83 | 91,434 |
| Recently Independent Countries | 0 | - | 4.98 | 159,020 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,598 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,771 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,418 |
| Countries by Former Name | 0 | - | 4.99 | 124,926 |
| Countries by Three Words #2 | 0 | - | 4.97 | 201,888 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,118 |
| European Countries by Clue | 0 | - | 4.92 | 183,494 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 100,911 |
| Countries by Haiku #2 | 0 | - | 4.81 | 43,857 |
| Historical City to Country | 0 | - | 4.84 | 78,439 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,823 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,828 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,451 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,490 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,113 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,303 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 53,130 |
| Former Flags | 0 | - | 4.97 | 107,500 |
| Boundary Waters | 0 | - | 4.92 | 88,381 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,085 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,917 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,179 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,342 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,277 |
| Ancient City to Country | 0 | - | 4.70 | 107,939 |
| City-States | 0 | - | 4.53 | 37,229 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,623 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,084 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,384 |
| Countries by Independence Day | 0 | - | 4.61 | 52,714 |
| Former Countries by Capital | 0 | - | 4.45 | 127,367 |
| Former Countries | 0 | - | 4.75 | 133,474 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,678 |
| Battle to Country | 0 | - | 4.91 | 53,166 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,628 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,563 |
| The Only American Country ... | 0 | - | 4.92 | 121,416 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,949 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,992 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,266 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,830 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,453 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,919 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,149 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,312 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,722 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,639 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,336,764 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,125 |
| Landlocked Countries | 0 | - | 4.99 | 418,984 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 568,125 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,099 |
| Countries by Three Words #3 | 0 | - | 4.80 | 128,464 |
| Countries by Three Words #4 | 0 | - | 4.44 | 100,583 |
| Countries by a Single Clue #1 | 0 | - | 4.75 | 100,614 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 94,932 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,724 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 76,901 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 86,891 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 94,868 |
| Countries by a Single Clue #10 | 0 | - | 4.55 | 67,799 |
| Countries by a Single Clue #11 | 0 | - | 4.61 | 76,466 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 78,922 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,278 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,891 |
| Countries by Haiku #1 | 0 | - | 4.52 | 44,150 |
| Roman Provinces on a Map | 0 | - | 4.54 | 36,860 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,635 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,262 |
| WWII Geography | 0 | - | 4.81 | 120,138 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,501 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,625 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,679 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,910 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,091 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,291 |
| World Capitals Quiz | 0 | - | 5.00 | 5,063,913 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,011 |
| Himalayan Countries | 0 | - | 4.94 | 137,443 |
| Andean Countries | 0 | - | 4.95 | 83,949 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,235 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,672 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,840 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,357 |
| Danube Countries | 0 | - | 4.97 | 71,668 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,559 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,060 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,661 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,739 |
| European Landlocked Countries | 0 | - | 4.99 | 146,780 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,143 |
| Countries with the Most Species | 0 | - | 4.99 | 102,912 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,788 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,275 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,433 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,589 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,305 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,994 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,368 |
| Countries in the Alps | 0 | - | 4.87 | 117,696 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,137 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,371 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,425 |
| Guerrillas by Country | 0 | - | 4.40 | 41,080 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,990 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,099 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,602 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,290 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,192 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,971 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,177 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,557 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,481 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,341 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,624 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,927 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,190 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,210 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,194 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,066 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,575 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,533 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,397 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,236 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,001 |
| Largest Countries By Category | 0 | - | 4.97 | 157,646 |
| Countries by Countries | 0 | - | 4.96 | 62,844 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,214 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,162 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,469 |
| Merged Country Flags | 0 | - | 4.88 | 106,591 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,530 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,658 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,326 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,757,080 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,380 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,736 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,225 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,390 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 34,740 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,081 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,077 |
| Longest International Borders | 0 | - | 4.99 | 264,670 |
| Countries with Three Borders | 0 | - | 4.96 | 36,454 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,916 |
| Largest Cities for each Latitude Degree | 0 | - | 5.00 | 48,014 |
| Famous Immigrants and Exiles | 0 | - | 4.45 | 23,329 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,937 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,112 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,006 |
| Demonym of Every Country | 0 | - | 4.91 | 59,153 |
| People Born on Islands | 0 | - | 4.39 | 52,884 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,029 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,975 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,618 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,124 |
| Island Countries | 0 | - | 4.99 | 709,771 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.75 | 45,441 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.77 | 33,302 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,083 |
| Northernmost Countries | 0 | - | 4.99 | 360,491 |
| Countries of South America | 0 | - | 5.00 | 922,942 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,098 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,448 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,418 |
| "Land" Countries | 0 | - | 4.98 | 335,802 |
| Top World Languages | 0 | - | 4.92 | 820,275 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,351 |
| Biggest First-Level Subdivisions by Area | 0 | - | 4.89 | 26,844 |
| Countries in World War I | 0 | - | 4.88 | 227,849 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,728 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,781 |
| Countries by a Single Clue #7 | 0 | - | 4.37 | 70,314 |
| Countries by a Single Clue #9 | 0 | - | 4.37 | 73,092 |
| Countries by a Single Word | 0 | - | 4.69 | 28,771 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,261 |
| All Country Flags of the World | 0 | - | 5.00 | 3,649,903 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,347 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,286 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,169 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,663 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,349 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,325 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,758 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,032 |
| Countries with Megacities | 0 | - | 4.99 | 260,164 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,906 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,000 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,179 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,008 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 51,269 |
