| Busiest Airports in Europe | 0 | - | 4.91 | 147,252 |
| World's Busiest Airports | 0 | - | 4.96 | 238,085 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,986,278 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,499 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 217,251 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,903 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,485 |
| Top World Languages | 0 | - | 4.92 | 831,542 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,287 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,662 |
| Cities by Airports | 0 | - | 4.48 | 104,172 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 137,067 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 127,126 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,743 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,629 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,152 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 98,008 |
| Boundary Waters | 0 | - | 4.92 | 88,852 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,473 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,865 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,160 |
| World Currency Quiz | 0 | - | 4.92 | 307,688 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,989 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,819 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,551 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,223 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,094 |
| Landlocked Countries | 0 | - | 4.99 | 427,454 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,647 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,270 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,000 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,195 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,215 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 101,014 |
| World Capitals Quiz | 0 | - | 5.00 | 5,115,253 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,010 |
| Himalayan Countries | 0 | - | 4.93 | 140,908 |
| Andean Countries | 0 | - | 4.94 | 85,847 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,957 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,552 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,498 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,717 |
| Danube Countries | 0 | - | 4.97 | 72,576 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,836 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,997 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,483 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,955 |
| European Landlocked Countries | 0 | - | 4.99 | 147,798 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,567 |
| Countries with the Most Species | 0 | - | 4.99 | 103,657 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,672 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,820 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,962 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,936 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,691 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,148 |
| Countries in the Alps | 0 | - | 4.87 | 119,007 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,360 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,055 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,197 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,076 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,195 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,154 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,407 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,623 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,013 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,522 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,328 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,966 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,838 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,688 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,942 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,044 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,186 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,752 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,616 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,864 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,426 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,556 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,630 |
| Largest Countries By Category | 0 | - | 4.97 | 159,126 |
| Countries by Countries | 0 | - | 4.97 | 63,825 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,452 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,251 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,813,881 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,135 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,603 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,029 |
| Demonyms Quiz | 0 | - | 4.15 | 185,613 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,662 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,463 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,674 |
| Longest International Borders | 0 | - | 4.99 | 266,034 |
| Countries with Three Borders | 0 | - | 4.96 | 36,841 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,435 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,584 |
| Demonym of Every Country | 0 | - | 4.90 | 61,661 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,412 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,810 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,757 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,097 |
| Island Countries | 0 | - | 4.99 | 713,082 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,421 |
| Northernmost Countries | 0 | - | 4.99 | 364,699 |
| Countries of South America | 0 | - | 5.00 | 934,600 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,866 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,757 |
| "Land" Countries | 0 | - | 4.98 | 339,085 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,433 |
| Airline Logos | 0 | - | 4.45 | 141,594 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,785 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,562 |
| Countries with Megacities | 0 | - | 4.99 | 267,997 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,214 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,370 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,544 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,474 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,192 |
| Cities by Famous Street | 0 | - | 3.96 | 48,392 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,196 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,542 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,594 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,105 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,369 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,480 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,429 |
| Countries by Capital City | 0 | - | 5.00 | 69,677 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,194 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,373 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,985 |
| Moved Capital Cities | 0 | - | 4.96 | 74,745 |
| Countries by Official Language | 0 | - | 4.95 | 196,270 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,006 |
| Countries in their Native Language | 0 | - | 4.99 | 199,989 |
| Independence from Whom | 0 | - | 4.99 | 213,464 |
| Subdivisions by Country | 0 | - | 4.87 | 50,674 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,709 |
| Megadiverse Countries | 0 | - | 4.96 | 149,503 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,171 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,588 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,826 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,265 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,511 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,935 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,324 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,640 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,187 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,291 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,833 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,504 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,519 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,230 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,652 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,986 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,738 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,806 |
| World Map Quiz | 0 | - | 4.81 | 65,955 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,835 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,566 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,259 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,728 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,995 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,579 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,695 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,873 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,775 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,975 |
| Widest Countries East to West | 0 | - | 4.92 | 130,882 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,634 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,431 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,573 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,174 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,147 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,630 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,543 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,928 |
| Countries with Double Letters | 0 | - | 4.96 | 97,709 |
| Countries that End in N | 0 | - | 4.95 | 172,704 |
| Countries with Five Letters | 0 | - | 4.96 | 284,741 |
| Countries with Six Letters | 0 | - | 4.94 | 215,030 |
| Countries with W | 0 | - | 4.96 | 161,366 |
| Countries with Z | 0 | - | 4.98 | 293,098 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,739 |
| Countries That End in U | 0 | - | 4.95 | 121,425 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,487 |
| Countries that End in O | 0 | - | 4.92 | 160,396 |
| Countries that End in R | 0 | - | 4.87 | 119,301 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,075 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,203 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,066 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,257 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,918 |
| Countries That End in Y | 0 | - | 4.91 | 186,190 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,434 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,455 |
| Countries that End in I | 0 | - | 4.94 | 135,442 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,379 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,162 |
| Countries That End in NIA | 0 | - | 4.92 | 110,173 |
| Countries That End in BIA | 0 | - | 4.93 | 149,766 |
