| Busiest Airports in Europe | 0 | - | 4.91 | 145,983 |
| World's Busiest Airports | 0 | - | 4.96 | 232,084 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,297,336 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,483 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,579 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,185 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,819 |
| Top World Languages | 0 | - | 4.92 | 819,637 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,394 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,466 |
| Places in their Native Language #2 | 0 | - | 4.81 | 133,602 |
| Cities by Airports | 0 | - | 4.49 | 88,617 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,500 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,018 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,672 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,276 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,867 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,853 |
| Boundary Waters | 0 | - | 4.92 | 88,354 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,057 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,872 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,170 |
| World Currency Quiz | 0 | - | 4.91 | 301,693 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,897 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,799 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,059 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,630 |
| Landlocked Countries | 0 | - | 4.99 | 418,343 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,944 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,122 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,477 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,586 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,816 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,455 |
| World Capitals Quiz | 0 | - | 5.00 | 5,060,712 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,686 |
| Himalayan Countries | 0 | - | 4.94 | 137,157 |
| Andean Countries | 0 | - | 4.95 | 83,788 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,040 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,430 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,718 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,264 |
| Danube Countries | 0 | - | 4.97 | 71,592 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,461 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,995 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,539 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,600 |
| European Landlocked Countries | 0 | - | 4.99 | 146,703 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,041 |
| Countries with the Most Species | 0 | - | 4.99 | 102,836 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,176 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,408 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,563 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,264 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,939 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,316 |
| Countries in the Alps | 0 | - | 4.87 | 117,600 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,992 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,076 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,268 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,373 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,922 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,028 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,403 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,209 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,138 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,934 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,502 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,447 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,305 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,882 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,153 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,169 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,062 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,020 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,541 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,438 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,090 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,092 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,951 |
| Largest Countries By Category | 0 | - | 4.97 | 157,546 |
| Countries by Countries | 0 | - | 4.96 | 62,785 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,145 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,275 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,753,544 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,844 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,319 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,715 |
| Demonyms Quiz | 0 | - | 4.15 | 185,063 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,379 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,958 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,034 |
| Longest International Borders | 0 | - | 4.99 | 264,575 |
| Countries with Three Borders | 0 | - | 4.96 | 36,427 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,883 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,977 |
| Demonym of Every Country | 0 | - | 4.91 | 59,108 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,275 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,489 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,581,847 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,452 |
| Island Countries | 0 | - | 4.99 | 709,531 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,476 |
| Northernmost Countries | 0 | - | 4.99 | 360,224 |
| Countries of South America | 0 | - | 5.00 | 922,228 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,109 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,829 |
| "Land" Countries | 0 | - | 4.98 | 335,674 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,777 |
| Airline Logos | 0 | - | 4.45 | 140,492 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,325 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,834 |
| Countries with Megacities | 0 | - | 4.99 | 253,583 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,691 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,884 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,991 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,869 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,087 |
| Cities by Famous Street | 0 | - | 3.96 | 48,301 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,107 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,782 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,884 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,206 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,231 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,886 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,514 |
| Countries by Capital City | 0 | - | 5.00 | 67,846 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,925 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,423 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,915 |
| Moved Capital Cities | 0 | - | 4.96 | 74,011 |
| Countries by Official Language | 0 | - | 4.95 | 194,542 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,394 |
| Countries in their Native Language | 0 | - | 4.99 | 198,093 |
| Independence from Whom | 0 | - | 4.99 | 211,205 |
| Subdivisions by Country | 0 | - | 4.86 | 50,265 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,614 |
| Megadiverse Countries | 0 | - | 4.96 | 134,733 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,304 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,157 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,722 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,000 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,654 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,339 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,892 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,797 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,460 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,964 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,838 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,679 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,951 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,750 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,107 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,299 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,534 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,050 |
| World Map Quiz | 0 | - | 4.81 | 64,425 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,972 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,402 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,874 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,586 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,196 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,466 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,640 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,785 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,234 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,237 |
| Widest Countries East to West | 0 | - | 4.92 | 129,320 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,373 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,899 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,979 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,477 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,162 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,497 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,218 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,715 |
| Countries with Double Letters | 0 | - | 4.97 | 95,003 |
| Countries that End in N | 0 | - | 4.95 | 169,780 |
| Countries with Five Letters | 0 | - | 4.96 | 279,507 |
| Countries with Six Letters | 0 | - | 4.94 | 212,367 |
| Countries with W | 0 | - | 4.97 | 159,454 |
| Countries with Z | 0 | - | 4.98 | 289,698 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,658 |
| Countries That End in U | 0 | - | 4.95 | 120,376 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,677 |
| Countries that End in O | 0 | - | 4.92 | 159,164 |
| Countries that End in R | 0 | - | 4.87 | 118,709 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,484 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,226 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,054 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,048 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,636 |
| Countries That End in Y | 0 | - | 4.90 | 185,625 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,158 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,356 |
| Countries that End in I | 0 | - | 4.94 | 134,836 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,013 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,551 |
| Countries That End in NIA | 0 | - | 4.92 | 109,486 |
| Countries That End in BIA | 0 | - | 4.93 | 148,799 |
