| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,069,947 |
| Global Cities on a World Map | 0 | - | 4.92 | 91,425 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,581 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 82,142 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,378 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 51,773 |
| ALL First-Level Subdivisions of the World With a Map | 0 | - | 5.00 | 111,185 |
| All First-Level Subdivisions of Europe by Proximity | 0 | - | 4.82 | 66,030 |
| Top World Languages on a Map | 0 | - | 4.91 | 93,037 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.99 | 98,397 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 39,775 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,063,539 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,393,387 |
| 407 Islands on the World Map | 0 | - | 4.98 | 27,944 |
| World Capitals by Map | 0 | - | 5.00 | 241,636 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 50,260 |
| Countries of the World in 1900 | 0 | - | 4.88 | 66,307 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 170,533 |
| All Countries by Northernmost Point on Land | 0 | - | 4.91 | 106,427 |
| 20 Countries on an Empty Map #1 | 0 | - | 4.94 | 54,192 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 128,009 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 46,718 |
| African East Coast | 0 | - | 4.97 | 84,196 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 30,875 |
| Boundary Waters | 0 | - | 4.93 | 81,112 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 74,743 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 44,700 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 51,181 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 59,906 |
| Pixelated World Map | 0 | - | 5.00 | 128,193 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 86,984 |
| Countries of the World in 1444 | 0 | - | 4.98 | 49,911 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 69,559 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 43,707 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 285,375 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 222,962 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 210,270 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 275,161 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.82 | 30,110 |
| Landmarks of Countries #2 | 0 | - | 4.50 | 51,892 |
| Largest World's Islands on the World Map | 0 | - | 4.66 | 155,400 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,915,945 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 323,633 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 85,119 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 351,330 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.98 | 47,422 |
| Seas on the World Map | 0 | - | 4.97 | 121,722 |
| Seas of the World | 0 | - | 5.00 | 127,678 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 85,405 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 99,937 |
| World Geography on a Map #1 | 0 | - | 4.93 | 67,322 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 83,766 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,178 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,775 |
| Cities by Landmark #1 | 0 | - | 4.05 | 43,871 |
| Cities by Landmark #2 | 0 | - | 4.03 | 34,324 |
| World Capitals Quiz | 0 | - | 5.00 | 4,496,836 |
| Members of the Arab League | 0 | - | 4.85 | 61,835 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,864 |
| Himalayan Countries | 0 | - | 4.94 | 104,727 |
| Andean Countries | 0 | - | 4.91 | 58,056 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,010 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,305 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,667 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,020 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,274 |
| Danube Countries | 0 | - | 4.97 | 56,624 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,664 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,831 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,159 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,327 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,495 |
| European Landlocked Countries | 0 | - | 4.99 | 115,486 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,307 |
| Countries with the Most Species | 0 | - | 4.99 | 89,521 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,324 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,669 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,995 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,243 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,398 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,673 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,110 |
| Countries in the Alps | 0 | - | 4.84 | 102,590 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,274 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,036 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,557 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,214 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,918 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,523 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,586 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,118 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,295 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,624 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,394 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,575 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,651 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,447 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,926 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,434 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,946 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,309 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,359 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,073 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,790 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,258 |
| Largest Countries By Category | 0 | - | 4.96 | 144,839 |
| Countries by Countries | 0 | - | 4.96 | 54,613 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,365 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,679 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 44,688 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.79 | 36,100 |
| All Countries by Population With a Map | 0 | - | 4.99 | 61,995 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 76,722 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,156 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 134,554 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,099 |
| Tourist Attraction by Negative Review | 0 | - | 4.90 | 59,650 |
| Who Controls It? #1 | 0 | - | 4.84 | 45,495 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 181,186 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 110,881 |
| Longest International Borders | 0 | - | 4.99 | 234,083 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 35,924 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 40,033 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 46,203 |
| Mediterranean Geography on a Map | 0 | - | 4.50 | 34,596 |
| Largest Arctic Islands with a Map | 0 | - | 4.44 | 19,127 |
| Roman Provinces on a Map | 0 | - | 4.52 | 31,780 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 94,158 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.87 | 34,402 |
| Demonym of Every Country | 0 | - | 4.91 | 49,505 |
| The Same Prefixes - Geography | 0 | - | 4.50 | 42,081 |
| "Second Best" Geography Edition #1 | 0 | - | 4.63 | 58,503 |
| Mediterranean Cities by Map | 0 | - | 4.48 | 49,165 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,382,383 |
| World Capitals on an Empty Map | 0 | - | 4.55 | 46,951 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,037 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,387 |
| Island Countries Quiz | 0 | - | 4.99 | 660,392 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.80 | 49,502 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.75 | 39,936 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,766 |
| Northernmost Countries | 0 | - | 4.99 | 327,080 |
| Countries of South America | 0 | - | 5.00 | 792,883 |
| Countries of Oceania | 0 | - | 5.00 | 893,244 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,150,456 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,571,786 |
| Top World Languages | 0 | - | 4.91 | 707,523 |
| Countries with Three Borders | 0 | - | 4.96 | 31,399 |
| Huge List of Famous Mountains | 0 | - | 4.82 | 30,357 |
| Analogies of Countries #1 | 0 | - | 4.84 | 50,275 |
| Five Letter Geography #4 | 0 | - | 4.84 | 65,722 |
| Name a Valid Answer - Geography | 0 | - | 4.92 | 76,920 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,799 |
| Countries with Megacities | 0 | - | 4.99 | 197,087 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,430 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,870 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,281 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,840 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,782 |
| Northernmost Capital Cities | 0 | - | 4.98 | 93,965 |
| Most Remote Capital Cities | 0 | - | 4.90 | 43,704 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 34,329 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 90,764 |
| Same Letter Country and Capital | 0 | - | 4.99 | 127,149 |
| Countries by Capital City | 0 | - | 4.99 | 49,337 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 65,889 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 105,034 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 72,922 |
| Moved Capital Cities | 0 | - | 4.94 | 52,254 |
| Countries by Official Language | 0 | - | 4.96 | 171,960 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,160 |
| Countries in their Native Language | 0 | - | 4.98 | 178,250 |
| Independence from Whom | 0 | - | 4.99 | 185,507 |
| Subdivisions by Country | 0 | - | 4.82 | 46,428 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,402 |
| Megadiverse Countries | 0 | - | 4.96 | 125,291 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,345 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,652 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,370 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,545 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,124 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,839 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,096 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,024 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,339 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,781 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,975 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,948 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,524 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,247 |
| World Map Quiz | 0 | - | 4.90 | 49,353 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,464 |
| Countries by Sports in 60 Seconds | 0 | - | 4.89 | 107,693 |
| Countries in the Shape of Mr. Bean with a Map | 0 | - | 4.02 | 19,508 |
| Countries by Founding Story | 0 | - | 4.92 | 54,861 |
| Countries by Road Signs | 0 | - | 4.98 | 45,240 |
| Countries That Do Not Border | 0 | - | 4.99 | 47,814 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,705 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,893 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,993 |
