| Busiest Airports in Europe | 0 | - | 4.91 | 146,579 |
| World's Busiest Airports | 0 | - | 4.96 | 235,120 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,611,527 |
| Countries with the Most Airports | 0 | - | 4.96 | 99,499 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 215,613 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,539 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,570 |
| Top World Languages | 0 | - | 4.92 | 824,807 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,845 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,482 |
| Cities by Airports | 0 | - | 4.45 | 101,611 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,199 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,998 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 122,092 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,439 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,006 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,326 |
| Boundary Waters | 0 | - | 4.92 | 88,595 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,268 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,308 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,634 |
| World Currency Quiz | 0 | - | 4.92 | 304,384 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,945 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,323 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,344 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,902 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,579 |
| Landlocked Countries | 0 | - | 4.99 | 422,341 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,237 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,625 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,723 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,451 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,466 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,735 |
| World Capitals Quiz | 0 | - | 5.00 | 5,085,419 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,704 |
| Himalayan Countries | 0 | - | 4.95 | 138,903 |
| Andean Countries | 0 | - | 4.93 | 84,715 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,919 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,982 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,537 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,877 |
| Danube Countries | 0 | - | 4.97 | 72,062 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,077 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,468 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,380 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,871 |
| European Landlocked Countries | 0 | - | 4.99 | 147,191 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,720 |
| Countries with the Most Species | 0 | - | 4.99 | 103,274 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,837 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,615 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,736 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,574 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,262 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,709 |
| Countries in the Alps | 0 | - | 4.87 | 118,266 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,147 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,355 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,103 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,694 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,635 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,557 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,982 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,717 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,542 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,202 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,891 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,677 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,548 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,258 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,511 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,571 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,993 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,344 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,233 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,138 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,123 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,234 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,264 |
| Largest Countries By Category | 0 | - | 4.97 | 158,281 |
| Countries by Countries | 0 | - | 4.96 | 63,272 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,304 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,710 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,781,414 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,972 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,745 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,866 |
| Demonyms Quiz | 0 | - | 4.15 | 185,330 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,508 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,084 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,320 |
| Longest International Borders | 0 | - | 4.99 | 265,247 |
| Countries with Three Borders | 0 | - | 4.96 | 36,626 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,144 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,247 |
| Demonym of Every Country | 0 | - | 4.91 | 60,799 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,339 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,851 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,452 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,617 |
| Island Countries | 0 | - | 4.99 | 711,175 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,320 |
| Northernmost Countries | 0 | - | 4.99 | 362,130 |
| Countries of South America | 0 | - | 5.00 | 927,830 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,622 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,467 |
| "Land" Countries | 0 | - | 4.98 | 337,441 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,585 |
| Airline Logos | 0 | - | 4.45 | 141,027 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,535 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,990 |
| Countries with Megacities | 0 | - | 4.99 | 264,780 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,828 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,518 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,084 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,597 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,145 |
| Cities by Famous Street | 0 | - | 3.96 | 48,345 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,150 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,615 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,578 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,580 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,714 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,535 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,386 |
| Countries by Capital City | 0 | - | 5.00 | 68,680 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,400 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,843 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,438 |
| Moved Capital Cities | 0 | - | 4.96 | 74,376 |
| Countries by Official Language | 0 | - | 4.95 | 195,319 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,482 |
| Countries in their Native Language | 0 | - | 4.99 | 199,113 |
| Independence from Whom | 0 | - | 4.99 | 212,183 |
| Subdivisions by Country | 0 | - | 4.86 | 50,440 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,795 |
| Megadiverse Countries | 0 | - | 4.96 | 135,048 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,164 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,378 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,254 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,120 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,179 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,615 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,521 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,054 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,679 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,160 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,742 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,911 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,227 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,986 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,373 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,514 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,562 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,289 |
| World Map Quiz | 0 | - | 4.81 | 65,144 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,389 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,160 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,318 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,030 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,302 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,930 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,045 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,326 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,466 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,599 |
| Widest Countries East to West | 0 | - | 4.92 | 129,684 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,464 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,425 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,134 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,793 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,625 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,906 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,386 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,808 |
| Countries with Double Letters | 0 | - | 4.96 | 96,303 |
| Countries that End in N | 0 | - | 4.95 | 171,196 |
| Countries with Five Letters | 0 | - | 4.96 | 282,619 |
| Countries with Six Letters | 0 | - | 4.94 | 213,636 |
| Countries with W | 0 | - | 4.97 | 160,380 |
| Countries with Z | 0 | - | 4.98 | 291,544 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,753 |
| Countries That End in U | 0 | - | 4.95 | 120,877 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,512 |
| Countries that End in O | 0 | - | 4.92 | 159,533 |
| Countries that End in R | 0 | - | 4.87 | 118,980 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,748 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,162 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,730 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,499 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,419 |
| Countries That End in Y | 0 | - | 4.91 | 185,891 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,968 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,891 |
| Countries that End in I | 0 | - | 4.94 | 135,116 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,148 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,838 |
| Countries That End in NIA | 0 | - | 4.92 | 109,805 |
| Countries That End in BIA | 0 | - | 4.93 | 149,236 |
