| Busiest Airports in Europe | 0 | - | 4.91 | 146,851 |
| World's Busiest Airports | 0 | - | 4.96 | 236,372 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,757,258 |
| Countries with the Most Airports | 0 | - | 4.96 | 99,919 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 216,168 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,691 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,731 |
| Top World Languages | 0 | - | 4.92 | 827,688 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,010 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,019 |
| Cities by Airports | 0 | - | 4.47 | 103,812 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,529 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,462 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 122,762 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,518 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,075 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,576 |
| Boundary Waters | 0 | - | 4.92 | 88,694 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,350 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,517 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,847 |
| World Currency Quiz | 0 | - | 4.92 | 305,750 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,960 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,562 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,448 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,036 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,815 |
| Landlocked Countries | 0 | - | 4.99 | 424,149 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,437 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,885 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,836 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,761 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,781 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,851 |
| World Capitals Quiz | 0 | - | 5.00 | 5,096,996 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,478 |
| Himalayan Countries | 0 | - | 4.94 | 139,645 |
| Andean Countries | 0 | - | 4.94 | 85,119 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,308 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,542 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,876 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,162 |
| Danube Countries | 0 | - | 4.97 | 72,242 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,372 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,666 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,786 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,271 |
| European Landlocked Countries | 0 | - | 4.99 | 147,417 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,026 |
| Countries with the Most Species | 0 | - | 4.99 | 103,448 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,166 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,696 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,806 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,722 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,450 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,872 |
| Countries in the Alps | 0 | - | 4.87 | 118,528 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,242 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,191 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,519 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,834 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,843 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,772 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,115 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,959 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,699 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,321 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,037 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,777 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,642 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,413 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,654 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,745 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,434 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,492 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,407 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,441 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,061 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,749 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,406 |
| Largest Countries By Category | 0 | - | 4.97 | 158,592 |
| Countries by Countries | 0 | - | 4.96 | 63,470 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,356 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,943 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,794,196 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,061 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,303 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,940 |
| Demonyms Quiz | 0 | - | 4.15 | 185,458 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,580 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,666 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,461 |
| Longest International Borders | 0 | - | 4.99 | 265,575 |
| Countries with Three Borders | 0 | - | 4.96 | 36,706 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,270 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,403 |
| Demonym of Every Country | 0 | - | 4.90 | 61,222 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,360 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,631 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,084 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,201 |
| Island Countries | 0 | - | 4.99 | 711,921 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,887 |
| Northernmost Countries | 0 | - | 4.99 | 363,259 |
| Countries of South America | 0 | - | 5.00 | 930,427 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,829 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,884,452 |
| "Land" Countries | 0 | - | 4.98 | 337,976 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,906 |
| Airline Logos | 0 | - | 4.45 | 141,259 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,665 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,620 |
| Countries with Megacities | 0 | - | 4.99 | 266,119 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,368 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,817 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,649 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,942 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,167 |
| Cities by Famous Street | 0 | - | 3.96 | 48,370 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,172 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,017 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,940 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,827 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,009 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,951 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,834 |
| Countries by Capital City | 0 | - | 5.00 | 69,113 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,684 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,074 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,646 |
| Moved Capital Cities | 0 | - | 4.96 | 74,546 |
| Countries by Official Language | 0 | - | 4.95 | 195,715 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,218 |
| Countries in their Native Language | 0 | - | 4.99 | 199,487 |
| Independence from Whom | 0 | - | 4.99 | 212,673 |
| Subdivisions by Country | 0 | - | 4.87 | 50,548 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,160 |
| Megadiverse Countries | 0 | - | 4.96 | 135,168 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,612 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,468 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,365 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,171 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,406 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,725 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,835 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,483 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,763 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,215 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,138 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,285 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,352 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,073 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,495 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,613 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,389,789 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,931 |
| World Map Quiz | 0 | - | 4.81 | 65,409 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,550 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,915 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,834 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,398 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,121 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,243 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,377 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,572 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,607 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,744 |
| Widest Countries East to West | 0 | - | 4.92 | 130,272 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,549 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,064 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,452 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,959 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,833 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,328 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,456 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,859 |
| Countries with Double Letters | 0 | - | 4.96 | 96,748 |
| Countries that End in N | 0 | - | 4.95 | 171,635 |
| Countries with Five Letters | 0 | - | 4.96 | 283,312 |
| Countries with Six Letters | 0 | - | 4.94 | 214,084 |
| Countries with W | 0 | - | 4.96 | 160,703 |
| Countries with Z | 0 | - | 4.98 | 292,053 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,057 |
| Countries That End in U | 0 | - | 4.95 | 121,055 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,852 |
| Countries that End in O | 0 | - | 4.92 | 159,702 |
| Countries that End in R | 0 | - | 4.87 | 119,097 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,847 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,534 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,973 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,686 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,608 |
| Countries That End in Y | 0 | - | 4.91 | 186,014 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,239 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,108 |
| Countries that End in I | 0 | - | 4.94 | 135,232 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,428 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,956 |
| Countries That End in NIA | 0 | - | 4.92 | 109,944 |
| Countries That End in BIA | 0 | - | 4.93 | 149,427 |
