| Countries of the World Quiz | 0 | - | 5.00 | 48,006,200 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,638 |
| Top World Languages | 0 | - | 4.92 | 832,148 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,655 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,863 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,713 |
| Busiest Airports in Europe | 0 | - | 4.91 | 147,286 |
| World's Busiest Airports | 0 | - | 4.96 | 238,222 |
| One Border Countries | 0 | - | 4.98 | 472,850 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,564 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,855,444 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,148 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 137,112 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,546 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 127,185 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,826 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,221 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,378 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,883 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,629 |
| Countries with Two Borders | 0 | - | 4.99 | 150,509 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,925 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,695 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,870 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,960 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,964 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,499 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,900 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,887 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,567 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 217,314 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,259 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,639 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 96,002 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,650 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,924 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,105 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,183 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,639 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,434 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,207 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,983 |
| World Currency Quiz | 0 | - | 4.92 | 307,855 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,494 |
| Boundary Waters | 0 | - | 4.92 | 88,871 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,490 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,902 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,950 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,856 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,561 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,233 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,667 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,453 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,767 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,427 |
| Random Countries by Borders | 0 | - | 4.99 | 83,236 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,305 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,106 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,989 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,308 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,990 |
| Cities by Airports | 0 | - | 4.48 | 104,190 |
| Landlocked Countries | 0 | - | 4.99 | 427,697 |
| Smallest Countries Bordering Each Other | 0 | - | 4.55 | 93,280 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,629 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,019 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,234 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,256 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 101,025 |
| World Capitals Quiz | 0 | - | 5.00 | 5,117,027 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,128 |
| Himalayan Countries | 0 | - | 4.93 | 141,013 |
| Andean Countries | 0 | - | 4.94 | 85,897 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,008 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,625 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,551 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,761 |
| Danube Countries | 0 | - | 4.97 | 72,607 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,872 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,021 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,527 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 151,012 |
| European Landlocked Countries | 0 | - | 4.99 | 147,820 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,606 |
| Countries with the Most Species | 0 | - | 4.99 | 103,672 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,711 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,833 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,975 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,960 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,708 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,176 |
| Countries in the Alps | 0 | - | 4.87 | 119,049 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,368 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,122 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,256 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,091 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,220 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,192 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,425 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,644 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,033 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,538 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,350 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,977 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,851 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,707 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,962 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,064 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,257 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,768 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,774 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,904 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,562 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,633 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,642 |
| Largest Countries By Category | 0 | - | 4.97 | 159,189 |
| Countries by Countries | 0 | - | 4.97 | 63,853 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,290 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,562 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,628 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,034 |
| Demonyms Quiz | 0 | - | 4.15 | 185,628 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,670 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,539 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,695 |
| Longest International Borders | 0 | - | 4.99 | 266,088 |
| Countries with Three Borders | 0 | - | 4.96 | 36,858 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,448 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,594 |
| Demonym of Every Country | 0 | - | 4.90 | 61,692 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,036 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,429 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,177 |
| Island Countries | 0 | - | 4.99 | 713,194 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,719 |
| Northernmost Countries | 0 | - | 4.99 | 364,832 |
| Countries of South America | 0 | - | 5.00 | 934,915 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,261 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,642 |
| "Land" Countries | 0 | - | 4.98 | 339,172 |
| Which Country Does Not Border... | 0 | - | 4.78 | 94,042 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,157 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,468 |
| Airline Logos | 0 | - | 4.45 | 141,631 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,464 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,380 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,522 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,098 |
| All Country Flags of the World | 0 | - | 5.00 | 3,728,959 |
| Foods of the World by Description | 0 | - | 4.19 | 46,171 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 98,030 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,794 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,417 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,819 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,201 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,652 |
| Countries with Megacities | 0 | - | 4.99 | 268,173 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,296 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,409 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,630 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,522 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,522 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,193 |
| Cities by Famous Street | 0 | - | 3.96 | 48,394 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,199 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,585 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,639 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,134 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,409 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,533 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,498 |
| Countries by Capital City | 0 | - | 5.00 | 69,721 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,242 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,405 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,640 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 85,015 |
| Moved Capital Cities | 0 | - | 4.96 | 74,764 |
| Countries by Official Language | 0 | - | 4.95 | 196,328 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,088 |
| Countries in their Native Language | 0 | - | 4.99 | 200,039 |
| Independence from Whom | 0 | - | 4.99 | 213,537 |
| Subdivisions by Country | 0 | - | 4.87 | 50,682 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,751 |
| Megadiverse Countries | 0 | - | 4.96 | 149,765 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,216 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,595 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,846 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,272 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,550 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,957 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,374 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,208 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,299 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,895 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,517 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,530 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,249 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,669 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 72,010 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,888 |
