| Busiest Airports in Europe | 0 | - | 4.91 | 144,913 |
| World's Busiest Airports | 0 | - | 4.94 | 210,489 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,926,435 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,145 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,093 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,566 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,886 |
| Top World Languages | 0 | - | 4.92 | 813,266 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,778 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,488 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,983 |
| Cities by Airports | 0 | - | 4.49 | 87,921 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,207 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,294 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,887 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,044 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,960 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,691 |
| Boundary Waters | 0 | - | 4.92 | 88,049 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,821 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,297 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,599 |
| World Currency Quiz | 0 | - | 4.92 | 298,558 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,780 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,013 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,789 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,262 |
| Landlocked Countries | 0 | - | 4.99 | 413,697 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,609 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,487 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,164 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,641 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,022 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,135 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,143 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,623 |
| Himalayan Countries | 0 | - | 4.95 | 135,387 |
| Andean Countries | 0 | - | 4.94 | 82,836 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,228 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,227 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,917 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,620 |
| Danube Countries | 0 | - | 4.97 | 71,090 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,773 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,543 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,498 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,415 |
| European Landlocked Countries | 0 | - | 4.99 | 145,761 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,223 |
| Countries with the Most Species | 0 | - | 4.99 | 95,245 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,359 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,200 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,371 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,960 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,580 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,953 |
| Countries in the Alps | 0 | - | 4.86 | 116,835 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,818 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,578 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,272 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,016 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,428 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,177 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,009 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,587 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,762 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,322 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,067 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,046 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,457 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,753 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,758 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,087 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,653 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,255 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,776 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,334 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,695 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,607 |
| Largest Countries By Category | 0 | - | 4.97 | 156,772 |
| Countries by Countries | 0 | - | 4.96 | 62,263 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,963 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,775 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,557 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,694 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,719 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,488 |
| Demonyms Quiz | 0 | - | 4.15 | 184,843 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,240 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,435 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,627 |
| Longest International Borders | 0 | - | 4.99 | 263,548 |
| Countries with Three Borders | 0 | - | 4.96 | 36,181 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,602 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,677 |
| Demonym of Every Country | 0 | - | 4.91 | 58,647 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,216 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,097 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,316 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,143 |
| Island Countries | 0 | - | 4.99 | 707,660 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,555 |
| Northernmost Countries | 0 | - | 4.99 | 357,766 |
| Countries of South America | 0 | - | 5.00 | 914,889 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,621 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,631 |
| "Land" Countries | 0 | - | 4.98 | 333,677 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,879 |
| Airline Logos | 0 | - | 4.45 | 139,968 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,165 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,288 |
| Countries with Megacities | 0 | - | 4.99 | 247,010 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,163 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,006 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,589 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,909 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,027 |
| Cities by Famous Street | 0 | - | 3.96 | 48,247 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,067 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,792 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,965 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,664 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,613 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,650 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,472 |
| Countries by Capital City | 0 | - | 5.00 | 66,680 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,349 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,913 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,420 |
| Moved Capital Cities | 0 | - | 4.96 | 73,596 |
| Countries by Official Language | 0 | - | 4.95 | 192,786 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,153 |
| Countries in their Native Language | 0 | - | 4.99 | 196,651 |
| Independence from Whom | 0 | - | 4.99 | 209,712 |
| Subdivisions by Country | 0 | - | 4.86 | 50,069 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,772 |
| Megadiverse Countries | 0 | - | 4.97 | 133,907 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,813 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,921 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,431 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,863 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,673 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,008 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,035 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,159 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,217 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,748 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,583 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,426 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,500 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,508 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,684 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,031 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,520 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,610 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,338 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,368 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,998 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,960 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,789 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,861 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,068 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,282 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,951 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,339 |
| Widest Countries East to West | 0 | - | 4.92 | 128,610 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,218 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,225 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,570 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,695 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,639 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,049 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,051 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,586 |
| Countries with Double Letters | 0 | - | 4.97 | 93,399 |
| Countries that End in N | 0 | - | 4.94 | 156,891 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,699 |
| Countries with Six Letters | 0 | - | 4.93 | 210,376 |
| Countries with W | 0 | - | 4.97 | 158,237 |
| Countries with Z | 0 | - | 4.98 | 287,894 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,563 |
| Countries That End in U | 0 | - | 4.95 | 119,521 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,573 |
| Countries that End in O | 0 | - | 4.92 | 158,564 |
| Countries that End in R | 0 | - | 4.87 | 118,276 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,861 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,048 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,342 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,501 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,031 |
| Countries That End in Y | 0 | - | 4.90 | 185,210 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,388 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,696 |
| Countries that End in I | 0 | - | 4.94 | 134,419 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,206 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,198 |
| Countries That End in NIA | 0 | - | 4.92 | 109,012 |
| Countries That End in BIA | 0 | - | 4.92 | 147,721 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,071 |
