| Europe's Busiest Airports | 0 | - | 4.92 | 134,907 |
| World's Busiest Airports | 0 | - | 4.94 | 191,466 |
| Countries with the Most Airports | 0 | - | 4.96 | 83,158 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,843,184 |
| Airport Codes Quiz #1 | 0 | - | 4.79 | 193,045 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 363,358 |
| Top World Languages | 0 | - | 4.92 | 724,935 |
| Busiest Airports in the United States | 0 | - | 4.57 | 128,452 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 84,349 |
| Places in their Native Language #1 | 0 | - | 4.87 | 213,901 |
| Places in their Native Language #2 | 0 | - | 4.89 | 114,685 |
| Cities by Airports | 0 | - | 4.51 | 82,386 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 119,001 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 106,355 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 96,592 |
| Busiest Air Routes in the World | 0 | - | 4.52 | 35,610 |
| Airports Named for People #1 | 0 | - | 4.45 | 53,639 |
| Countries by Airline Passengers | 0 | - | 4.91 | 49,830 |
| World Currency Quiz | 0 | - | 4.92 | 251,852 |
| Boundary Waters | 0 | - | 4.93 | 82,093 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,572 |
| Lonely Planet Top 200 Cities | 0 | - | 4.63 | 211,631 |
| Cities with the Most International Tourists | 0 | - | 4.46 | 50,570 |
| Largest Countries with Little Tourism | 0 | - | 4.71 | 55,881 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 96,396 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 78,022 |
| Tourist Route of Europe | 0 | - | 4.22 | 41,909 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,840 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 335,360 |
| U.S. National Parks Map Quiz | 0 | - | 4.52 | 52,106 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,366 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 140,033 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,729 |
| Cities by Famous Street | 0 | - | 4.01 | 47,526 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.35 | 93,876 |
| World Capitals Quiz | 0 | - | 5.00 | 4,584,896 |
| Members of the Arab League | 0 | - | 4.86 | 66,647 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,791 |
| Himalayan Countries | 0 | - | 4.94 | 108,731 |
| Andean Countries | 0 | - | 4.91 | 60,399 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,590 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,992 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,626 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,929 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,372 |
| Danube Countries | 0 | - | 4.96 | 57,292 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,289 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,345 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,847 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,520 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,188 |
| European Landlocked Countries | 0 | - | 4.99 | 137,295 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,944 |
| Countries with the Most Species | 0 | - | 4.99 | 90,095 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,470 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,066 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,357 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,151 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,940 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,170 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 50,009 |
| Countries in the Alps | 0 | - | 4.84 | 103,994 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.25 | 77,592 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,567 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,808 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,375 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,481 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 95,002 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,432 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,656 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,836 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,753 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,495 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,255 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,081 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,069 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,674 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,760 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,331 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,846 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 62,034 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,126 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 203,316 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,711 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,898 |
| Largest Countries By Category | 0 | - | 4.97 | 146,588 |
| Countries by Countries | 0 | - | 4.95 | 55,710 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,182,586 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,778 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,236,076 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.99 | 136,421 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,755 |
| Demonyms Quiz | 0 | - | 4.11 | 180,005 |
| Who Controls It? #1 | 0 | - | 4.82 | 45,934 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 183,510 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,982 |
| Longest International Borders | 0 | - | 4.99 | 236,890 |
| Countries with Three Borders | 0 | - | 4.96 | 32,204 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,971 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 41,500 |
| Demonym of Every Country | 0 | - | 4.91 | 50,951 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,411,166 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 345,538 |
| Island Countries Quiz | 0 | - | 4.99 | 669,456 |
| Biggest Countries by Area | 0 | - | 5.00 | 948,982 |
| Northernmost Countries | 0 | - | 4.99 | 331,215 |
| Countries of South America | 0 | - | 5.00 | 811,643 |
| Countries of Oceania | 0 | - | 5.00 | 915,591 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,615,123 |
| Airline Logos | 0 | - | 4.43 | 130,127 |
| Europe Map Quiz | 0 | - | 5.00 | 4,358,380 |
| Foods of the World Quiz | 0 | - | 4.19 | 44,535 |
| Analogies of Countries #1 | 0 | - | 4.87 | 63,497 |
| Five Letter Geography #4 | 0 | - | 4.83 | 67,888 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,330,533 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,728 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,325 |
| Countries with Megacities | 0 | - | 4.99 | 202,217 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,690 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 100,126 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,483 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 66,074 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,558 |
| Biggest Cities in the World | 0 | - | 4.90 | 704,123 |
| Cities by Tourist Attraction #1 | 0 | - | 3.64 | 80,186 |
| Global Cities on a World Map | 0 | - | 4.92 | 93,036 |
| Northernmost Capital Cities | 0 | - | 4.98 | 96,179 |
| Most Remote Capital Cities | 0 | - | 4.90 | 45,003 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,727 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 93,440 |
| Same Letter Country and Capital | 0 | - | 4.99 | 130,462 |
| Countries by Capital City | 0 | - | 4.99 | 51,718 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 67,332 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 106,293 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 74,596 |
| Moved Capital Cities | 0 | - | 4.96 | 68,031 |
| Countries by Official Language | 0 | - | 4.96 | 175,460 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,896 |
| Countries in their Native Language | 0 | - | 4.98 | 180,816 |
| Independence from Whom | 0 | - | 4.99 | 189,694 |
| Subdivisions by Country | 0 | - | 4.85 | 46,944 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,861 |
| Megadiverse Countries | 0 | - | 4.96 | 126,897 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 94,128 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,681 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,867 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,495 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,969 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,803 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,106 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,782 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,885 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,227 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,336 |
| Countries Furthest from the United States | 0 | - | 4.94 | 73,026 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,569 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,467 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,093 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,122,233 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,964 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,842 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,991 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,966 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 110,346 |
| Countries With the Most Languages | 0 | - | 4.90 | 178,104 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,789 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,202 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 88,430 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 55,195 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,697 |
| Widest Countries East to West | 0 | - | 4.93 | 120,662 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,147 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,708 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,910 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,473 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,956 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,765 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,606 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,826 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,446 |
| Airlines by Country | 0 | - | 4.51 | 127,009 |
| Countries with Double Letters | 0 | - | 4.96 | 72,539 |
| Countries that End in N | 0 | - | 4.94 | 136,775 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 234,567 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 191,121 |
| Countries with W | 0 | - | 4.96 | 126,226 |
| Countries with Z | 0 | - | 4.98 | 265,255 |
| Countries with Letters Missing | 0 | - | 4.97 | 170,081 |
| Countries That End in U | 0 | - | 4.95 | 109,799 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,890 |
| Countries that End in O | 0 | - | 4.92 | 148,932 |
| Countries that End in R | 0 | - | 4.85 | 97,503 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,443 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,526 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,921 |
| Countries by Last Two Letters | 0 | - | 4.89 | 117,849 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,788 |
| Countries That End in Y | 0 | - | 4.92 | 177,469 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 163,187 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,751 |
