| Busiest Airports in Europe | 0 | - | 4.91 | 147,071 |
| World's Busiest Airports | 0 | - | 4.96 | 237,428 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,239 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 216,673 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,897,530 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,815 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,822 |
| Top World Languages | 0 | - | 4.92 | 830,116 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,165 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,405 |
| Cities by Airports | 0 | - | 4.47 | 104,058 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,859 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,877 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,324 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,582 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,120 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,807 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,037 |
| World Currency Quiz | 0 | - | 4.92 | 306,900 |
| Boundary Waters | 0 | - | 4.92 | 88,780 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,424 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,722 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,372 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,988 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,714 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,509 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,142 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,566 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,110 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,981 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,977 |
| Landlocked Countries | 0 | - | 4.99 | 426,132 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,108 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,936 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,420 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,023 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,044 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,950 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,650 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,392 |
| Himalayan Countries | 0 | - | 4.93 | 140,347 |
| Andean Countries | 0 | - | 4.94 | 85,522 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,671 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,091 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,246 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,479 |
| Danube Countries | 0 | - | 4.97 | 72,434 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,631 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,865 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,182 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,656 |
| European Landlocked Countries | 0 | - | 4.99 | 147,631 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,344 |
| Countries with the Most Species | 0 | - | 4.99 | 103,584 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,439 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,784 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,895 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,858 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,593 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,039 |
| Countries in the Alps | 0 | - | 4.87 | 118,816 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,316 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,697 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,921 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,979 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,045 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,986 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,284 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,434 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,884 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,442 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,204 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,895 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,755 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,575 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,821 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,910 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,906 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,634 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,326 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,710 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,828 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,208 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,532 |
| Largest Countries By Category | 0 | - | 4.97 | 158,895 |
| Countries by Countries | 0 | - | 4.96 | 63,666 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,290 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,412 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,677 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,127 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,952 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,485 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,991 |
| Demonyms Quiz | 0 | - | 4.15 | 185,552 |
| Airports Named for People #2 | 0 | - | 4.23 | 15,529 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,622 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,159 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,586 |
| Longest International Borders | 0 | - | 4.99 | 265,844 |
| Countries with Three Borders | 0 | - | 4.96 | 36,784 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,369 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,505 |
| Demonym of Every Country | 0 | - | 4.90 | 61,508 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,660 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,102 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,753 |
| Island Countries | 0 | - | 4.99 | 712,649 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,017 |
| Northernmost Countries | 0 | - | 4.99 | 364,129 |
| Countries of South America | 0 | - | 5.00 | 933,006 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,806 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,096 |
| "Land" Countries | 0 | - | 4.98 | 338,450 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,246 |
| Airline Logos | 0 | - | 4.45 | 141,466 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,424 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,064 |
| All Country Flags of the World | 0 | - | 5.00 | 3,715,858 |
| Foods of the World by Description | 0 | - | 4.18 | 46,141 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,738 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,395 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,008 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,027 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,688 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,491 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,582 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,230 |
| Countries with Megacities | 0 | - | 4.99 | 267,273 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,915 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,174 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,232 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,289 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,852 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,186 |
| Cities by Famous Street | 0 | - | 3.96 | 48,382 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,185 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,348 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,390 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,990 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,234 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,260 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,187 |
| Countries by Capital City | 0 | - | 5.00 | 69,444 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,883 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,258 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,990 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,837 |
| Moved Capital Cities | 0 | - | 4.96 | 74,668 |
| Countries by Official Language | 0 | - | 4.95 | 196,044 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,689 |
| Countries in their Native Language | 0 | - | 4.99 | 199,784 |
| Independence from Whom | 0 | - | 4.99 | 213,128 |
| Subdivisions by Country | 0 | - | 4.87 | 50,628 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,489 |
| Megadiverse Countries | 0 | - | 4.96 | 135,295 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,980 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,547 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,712 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,233 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,301 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,863 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,142 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,576 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,085 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,262 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,582 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,392 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,452 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,158 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,595 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,892 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,417 |
| World Map Quiz | 0 | - | 4.81 | 65,775 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,391 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,731 |
| Countries by Founding Story | 0 | - | 4.95 | 77,825 |
| Countries by Road Signs | 0 | - | 4.98 | 54,371 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,307 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,116 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,593 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,647 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,465 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,569 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,767 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,713 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,776 |
| Widest Countries East to West | 0 | - | 4.92 | 130,627 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,604 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,279 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,525 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,076 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,005 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,503 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,511 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,897 |
| Airlines by Country | 0 | - | 4.52 | 135,860 |
| Countries with Double Letters | 0 | - | 4.96 | 97,134 |
| Countries that End in N | 0 | - | 4.95 | 172,015 |
| Countries with Five Letters | 0 | - | 4.96 | 283,992 |
| Countries with Six Letters | 0 | - | 4.94 | 214,545 |
