| Island Countries | 0 | - | 4.99 | 713,017 |
| Independence from Whom | 0 | - | 4.99 | 213,416 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,671 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,810 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,477 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,925 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,285 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,167 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,980 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,292 |
| Countries by Founding Story | 0 | - | 4.95 | 77,912 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,224 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,599 |
| Cities by Former Name | 0 | - | 4.83 | 92,181 |
| Recently Independent Countries | 0 | - | 4.98 | 160,517 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,173 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,088 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,481 |
| Countries by Former Name | 0 | - | 4.99 | 125,978 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,441 |
| Historical City to Country | 0 | - | 4.85 | 79,101 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,334 |
| Boundary Waters | 0 | - | 4.92 | 88,837 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,468 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,845 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,565 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,062 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,087 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,181 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,725 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,757 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,858 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,981 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 54,323 |
| Former Flags | 0 | - | 4.97 | 108,824 |
| Most Populous Islands | 0 | - | 4.80 | 123,441 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,404 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,675 |
| Ancient City to Country | 0 | - | 4.72 | 108,400 |
| City-States | 0 | - | 4.53 | 37,437 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,859 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,356 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,683 |
| Countries by Independence Day | 0 | - | 4.62 | 52,881 |
| Former Countries by Capital | 0 | - | 4.45 | 127,894 |
| Former Countries | 0 | - | 4.77 | 134,320 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,971,439 |
| Landlocked Countries | 0 | - | 4.99 | 427,268 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,603 |
| Battle to Country | 0 | - | 4.91 | 54,111 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 591,949 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,982 |
| Name a Valid Island Country | 0 | - | 4.97 | 130,457 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,547 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,021 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,995 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,007 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,723 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,994 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,516 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,172 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,191 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,176 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,289 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,792 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,964 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,931 |
| Himalayan Countries | 0 | - | 4.93 | 140,839 |
| Andean Countries | 0 | - | 4.94 | 85,807 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,923 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,495 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,470 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,695 |
| Danube Countries | 0 | - | 4.97 | 72,562 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,804 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,974 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,451 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,921 |
| European Landlocked Countries | 0 | - | 4.99 | 147,743 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,541 |
| Countries with the Most Species | 0 | - | 4.99 | 103,651 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,974 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,641 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,815 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,953 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,926 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,681 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,137 |
| Countries in the Alps | 0 | - | 4.87 | 118,980 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,003 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,136 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,056 |
| Guerrillas by Country | 0 | - | 4.40 | 41,252 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,172 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,128 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,394 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,600 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,994 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,516 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,303 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,316 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,954 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,831 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,956 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,677 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,926 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,023 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,152 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,738 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,483 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,844 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,316 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,500 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,619 |
| Largest Countries By Category | 0 | - | 4.97 | 159,100 |
| Countries by Countries | 0 | - | 4.97 | 63,811 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,450 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,451 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,705 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,779 |
| Merged Country Flags | 0 | - | 4.88 | 107,500 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,448 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,555 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,235 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,674 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,582 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,027 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,888 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,656 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,262 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,413 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,659 |
| Longest International Borders | 0 | - | 4.99 | 266,003 |
| Countries with Three Borders | 0 | - | 4.96 | 36,830 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,426 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,571 |
| Famous Immigrants and Exiles | 0 | - | 4.46 | 23,780 |
| Roman Provinces on a Map | 0 | - | 4.53 | 37,408 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,701 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,030 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,212 |
| Demonym of Every Country | 0 | - | 4.90 | 61,639 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,554 |
| Islands by Picture | 0 | - | 4.28 | 107,962 |
| Islands by Wikipedia Descriptions | 0 | - | 4.54 | 37,546 |
| Name a Valid Island | 0 | - | 4.80 | 69,602 |
| Island Superlatives | 0 | - | 4.57 | 34,744 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,406 |
| WWII Geography | 0 | - | 4.81 | 121,503 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,068 |
| Biggest First-Level Subdivisions by Area | 0 | - | 4.89 | 27,222 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,746 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,635 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,323 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,046 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,373 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.77 | 45,903 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.78 | 33,751 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,194 |
| Northernmost Countries | 0 | - | 4.99 | 364,606 |
| Countries of South America | 0 | - | 5.00 | 934,319 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,569 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,117 |
| "Land" Countries | 0 | - | 4.98 | 339,003 |
| Top World Languages | 0 | - | 4.92 | 831,301 |
| East Asian Islands on the Map | 0 | - | 4.55 | 33,233 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,829 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,795 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,006 |
| Islands A-Z | 0 | - | 4.46 | 128,089 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,777 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,142 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,507 |
| Countries with Megacities | 0 | - | 4.99 | 267,871 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,161 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,344 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,486 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,443 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 52,098 |
| Home Cities in History #1 | 0 | - | 4.04 | 16,621 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,515 |
| Find the City #1 | 0 | - | 4.97 | 43,433 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,561 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,087 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,351 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,441 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,383 |
| Countries by Capital City | 0 | - | 5.00 | 69,633 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,150 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,359 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,963 |
| Moved Capital Cities | 0 | - | 4.96 | 74,735 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,864 |
| Countries by Official Language | 0 | - | 4.95 | 196,227 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,952 |
| Countries in their Native Language | 0 | - | 4.99 | 199,965 |
| Subdivisions by Country | 0 | - | 4.87 | 50,668 |
| Countries in World War I | 0 | - | 4.88 | 229,436 |
| Megadiverse Countries | 0 | - | 4.96 | 149,105 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,507 |
