| Busiest Airports in Europe | 0 | - | 4.91 | 147,130 |
| World's Busiest Airports | 0 | - | 4.96 | 237,635 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,923,522 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,331 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 216,987 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,847 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,027 |
| Top World Languages | 0 | - | 4.92 | 830,536 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,201 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,491 |
| Cities by Airports | 0 | - | 4.48 | 104,098 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,924 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,959 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,439 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,599 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,130 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,880 |
| Boundary Waters | 0 | - | 4.92 | 88,803 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,430 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,766 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,075 |
| World Currency Quiz | 0 | - | 4.92 | 307,140 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,981 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,748 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,519 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,163 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,016 |
| Landlocked Countries | 0 | - | 4.99 | 426,612 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,583 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,155 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,955 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,069 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,100 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,970 |
| World Capitals Quiz | 0 | - | 5.00 | 5,109,858 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,587 |
| Himalayan Countries | 0 | - | 4.93 | 140,520 |
| Andean Countries | 0 | - | 4.94 | 85,639 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,776 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,240 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,330 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,565 |
| Danube Countries | 0 | - | 4.97 | 72,475 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,690 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,904 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,283 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,744 |
| European Landlocked Countries | 0 | - | 4.99 | 147,678 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,412 |
| Countries with the Most Species | 0 | - | 4.99 | 103,607 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,519 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,791 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,917 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,881 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,621 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,078 |
| Countries in the Alps | 0 | - | 4.87 | 118,863 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,326 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,809 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,009 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,015 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,098 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,042 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,329 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,477 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,926 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,472 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,244 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,919 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,788 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,621 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,855 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,953 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,012 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,663 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,683 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,760 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,975 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,318 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,560 |
| Largest Countries By Category | 0 | - | 4.97 | 158,956 |
| Countries by Countries | 0 | - | 4.97 | 63,718 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,427 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,158 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,808,133 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,119 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,528 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,012 |
| Demonyms Quiz | 0 | - | 4.15 | 185,569 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,633 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,250 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,607 |
| Longest International Borders | 0 | - | 4.99 | 265,895 |
| Countries with Three Borders | 0 | - | 4.96 | 36,805 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,387 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,524 |
| Demonym of Every Country | 0 | - | 4.90 | 61,554 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,401 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,008 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,888 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,867 |
| Island Countries | 0 | - | 4.99 | 712,775 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,430 |
| Northernmost Countries | 0 | - | 4.99 | 364,309 |
| Countries of South America | 0 | - | 5.00 | 933,468 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,460 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,099 |
| "Land" Countries | 0 | - | 4.98 | 338,591 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,295 |
| Airline Logos | 0 | - | 4.45 | 141,492 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,752 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,335 |
| Countries with Megacities | 0 | - | 4.99 | 267,493 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,994 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,235 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,329 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,338 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,187 |
| Cities by Famous Street | 0 | - | 3.96 | 48,382 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,189 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,410 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,462 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,025 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,273 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,330 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,249 |
| Countries by Capital City | 0 | - | 5.00 | 69,512 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,955 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,284 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,883 |
| Moved Capital Cities | 0 | - | 4.96 | 74,692 |
| Countries by Official Language | 0 | - | 4.95 | 196,124 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,789 |
| Countries in their Native Language | 0 | - | 4.99 | 199,847 |
| Independence from Whom | 0 | - | 4.99 | 213,238 |
| Subdivisions by Country | 0 | - | 4.87 | 50,642 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,565 |
| Megadiverse Countries | 0 | - | 4.96 | 145,627 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,038 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,558 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,753 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,239 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,357 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,891 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,188 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,595 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,129 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,648 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,437 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,467 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,179 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,608 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,917 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,385 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,543 |
| World Map Quiz | 0 | - | 4.81 | 65,827 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,760 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,388 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,161 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,625 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,748 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,488 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,608 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,793 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,730 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,854 |
| Widest Countries East to West | 0 | - | 4.92 | 130,778 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,617 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,316 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,537 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,103 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,047 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,544 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,518 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,909 |
| Countries with Double Letters | 0 | - | 4.96 | 97,260 |
| Countries that End in N | 0 | - | 4.95 | 172,351 |
| Countries with Five Letters | 0 | - | 4.96 | 284,236 |
| Countries with Six Letters | 0 | - | 4.94 | 214,666 |
| Countries with W | 0 | - | 4.96 | 161,078 |
| Countries with Z | 0 | - | 4.98 | 292,645 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,422 |
| Countries That End in U | 0 | - | 4.95 | 121,263 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,221 |
| Countries that End in O | 0 | - | 4.92 | 160,277 |
| Countries that End in R | 0 | - | 4.87 | 119,224 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,985 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,973 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 174,039 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,918 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,950 |
| Countries That End in Y | 0 | - | 4.91 | 186,121 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,631 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,336 |
| Countries that End in I | 0 | - | 4.94 | 135,367 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,764 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,095 |
| Countries That End in NIA | 0 | - | 4.92 | 110,104 |
| Countries That End in BIA | 0 | - | 4.93 | 149,651 |
