| Countries Settled by Vikings | 0 | - | 4.93 | 120,819 |
| Independence from Whom | 0 | - | 4.99 | 209,606 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,690 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,975 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,846 |
| Countries by Founding Story | 0 | - | 4.95 | 76,497 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,125 |
| Cities by Former Name | 0 | - | 4.84 | 90,936 |
| Recently Independent Countries | 0 | - | 4.98 | 157,942 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,440 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,065 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,767 |
| Countries by Former Name | 0 | - | 4.99 | 124,246 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,365 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,137 |
| European Countries by Clue | 0 | - | 4.92 | 182,341 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 100,153 |
| Countries by Haiku #2 | 0 | - | 4.82 | 43,512 |
| Historical City to Country | 0 | - | 4.84 | 78,114 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,450 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,256 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,262 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,679 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,484 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,846 |
| Countries of Europe before World War II with a Map | 0 | - | 4.94 | 52,255 |
| Former Flags | 0 | - | 4.97 | 106,633 |
| Boundary Waters | 0 | - | 4.92 | 88,025 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,798 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,240 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,234 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,813 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,708 |
| Ancient City to Country | 0 | - | 4.70 | 107,592 |
| City-States | 0 | - | 4.53 | 37,088 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,475 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,956 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,220 |
| Countries by Independence Day | 0 | - | 4.56 | 52,596 |
| Former Countries by Capital | 0 | - | 4.45 | 127,025 |
| Former Countries | 0 | - | 4.75 | 132,664 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,992 |
| Battle to Country | 0 | - | 4.91 | 52,489 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,171 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,259 |
| The Only American Country ... | 0 | - | 4.92 | 120,719 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,151 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,651 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 86,506 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,167 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 86,152 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,875 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,375 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,334 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,063 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,973 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,894,287 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,009 |
| Landlocked Countries | 0 | - | 4.99 | 413,311 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,107 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,670 |
| Countries by Three Words #3 | 0 | - | 4.80 | 126,522 |
| Countries by Three Words #4 | 0 | - | 4.43 | 85,021 |
| Countries by a Single Clue #1 | 0 | - | 4.77 | 100,210 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 94,528 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,384 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 76,614 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 86,560 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 94,520 |
| Countries by a Single Clue #10 | 0 | - | 4.55 | 67,582 |
| Countries by a Single Clue #11 | 0 | - | 4.61 | 76,195 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 78,639 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,007 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,675 |
| Countries by Haiku #1 | 0 | - | 4.52 | 44,008 |
| Roman Provinces on a Map | 0 | - | 4.54 | 36,540 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,826 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,202 |
| WWII Geography | 0 | - | 4.81 | 119,312 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,143 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,963 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,553 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,906 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,006 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,120 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,456 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,447 |
| Himalayan Countries | 0 | - | 4.95 | 135,233 |
| Andean Countries | 0 | - | 4.94 | 82,765 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,177 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,116 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,847 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,550 |
| Danube Countries | 0 | - | 4.97 | 71,047 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,716 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,504 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,402 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,329 |
| European Landlocked Countries | 0 | - | 4.99 | 145,719 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,149 |
| Countries with the Most Species | 0 | - | 4.99 | 95,228 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,638 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,291 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,357 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,941 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,549 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,922 |
| Countries in the Alps | 0 | - | 4.87 | 116,772 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,527 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,191 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,986 |
| Guerrillas by Country | 0 | - | 4.40 | 40,943 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,391 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,117 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,972 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,535 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,726 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,117 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,093 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,022 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,183 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,024 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,388 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,420 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,714 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,724 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,003 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,612 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,239 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,736 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,102 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,541 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,576 |
| Largest Countries By Category | 0 | - | 4.97 | 156,703 |
| Countries by Countries | 0 | - | 4.96 | 62,228 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,329 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,952 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,318 |
| Merged Country Flags | 0 | - | 4.88 | 105,981 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,562 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,076 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,723 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,713,939 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,678 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,474 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,525 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,224 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,429 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,321 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,594 |
| Longest International Borders | 0 | - | 4.99 | 263,491 |
| Countries with Three Borders | 0 | - | 4.96 | 36,166 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,585 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,643 |
| Famous Immigrants and Exiles | 0 | - | 4.48 | 20,433 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,336 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,458 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,849 |
| Demonym of Every Country | 0 | - | 4.91 | 58,616 |
| People Born on Islands | 0 | - | 4.39 | 52,740 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,485 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,330 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,019 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,621 |
| Island Countries | 0 | - | 4.99 | 707,490 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.74 | 45,127 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.77 | 32,923 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,065 |
| Northernmost Countries | 0 | - | 4.99 | 357,550 |
| Countries of South America | 0 | - | 5.00 | 914,174 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,768 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,173 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,142 |
| "Land" Countries | 0 | - | 4.98 | 333,558 |
| Top World Languages | 0 | - | 4.92 | 812,722 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,925 |
| Biggest First-Level Subdivisions by Area | 0 | - | 4.89 | 26,576 |
| Countries in World War I | 0 | - | 4.88 | 226,554 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,357 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,476 |
| Countries by a Single Clue #7 | 0 | - | 4.37 | 70,085 |
| Countries by a Single Clue #9 | 0 | - | 4.37 | 72,867 |
| Countries by a Single Word | 0 | - | 4.69 | 28,653 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,917 |
| All Country Flags of the World | 0 | - | 5.00 | 3,599,331 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,154 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,205 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,450 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,377 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,008 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,497 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,481 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,000 |
| Countries with Megacities | 0 | - | 4.99 | 246,525 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,920 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,800 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,371 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,759 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 50,572 |
