| Busiest Airports in Europe | 0 | - | 4.91 | 144,783 |
| World's Busiest Airports | 0 | - | 4.94 | 210,012 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,846,306 |
| Countries with the Most Airports | 0 | - | 4.96 | 96,958 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 212,829 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,475 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,953 |
| Top World Languages | 0 | - | 4.92 | 811,877 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,713 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,256 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,889 |
| Cities by Airports | 0 | - | 4.49 | 87,742 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,058 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,120 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,636 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 118,666 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,911 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,665 |
| Boundary Waters | 0 | - | 4.92 | 87,988 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,782 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,164 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,466 |
| World Currency Quiz | 0 | - | 4.92 | 297,722 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,770 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 219,921 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,739 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,188 |
| Landlocked Countries | 0 | - | 4.99 | 412,828 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,533 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,309 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,102 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,454 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,834 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,060 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,060 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,211 |
| Himalayan Countries | 0 | - | 4.95 | 135,032 |
| Andean Countries | 0 | - | 4.94 | 82,650 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,074 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,971 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,746 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,453 |
| Danube Countries | 0 | - | 4.97 | 70,987 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,631 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,450 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,273 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,183 |
| European Landlocked Countries | 0 | - | 4.99 | 145,659 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,036 |
| Countries with the Most Species | 0 | - | 4.99 | 95,180 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,179 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,172 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,331 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,905 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,500 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,861 |
| Countries in the Alps | 0 | - | 4.87 | 116,675 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,772 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,459 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,052 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,935 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,316 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,059 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,932 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,456 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,675 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,113 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,963 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,164 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,994 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,356 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,667 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,667 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,848 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,554 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,196 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,657 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,799 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,340 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,529 |
| Largest Countries By Category | 0 | - | 4.97 | 156,596 |
| Countries by Countries | 0 | - | 4.96 | 62,157 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,929 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,648 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,229 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,658 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,622 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,454 |
| Demonyms Quiz | 0 | - | 4.15 | 184,788 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,211 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,118 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,538 |
| Longest International Borders | 0 | - | 4.99 | 263,355 |
| Countries with Three Borders | 0 | - | 4.96 | 36,127 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,550 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,597 |
| Demonym of Every Country | 0 | - | 4.91 | 58,559 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,200 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,963 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,568,737 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,806 |
| Island Countries | 0 | - | 4.99 | 707,206 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,252 |
| Northernmost Countries | 0 | - | 4.99 | 357,199 |
| Countries of South America | 0 | - | 5.00 | 913,253 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,432 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,844,835 |
| "Land" Countries | 0 | - | 4.98 | 333,400 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,675 |
| Airline Logos | 0 | - | 4.45 | 139,847 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,122 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,849 |
| Countries with Megacities | 0 | - | 4.99 | 246,130 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,761 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,726 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,228 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,660 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,018 |
| Cities by Famous Street | 0 | - | 3.96 | 48,238 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,060 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,560 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,802 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,555 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,505 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,470 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,196 |
| Countries by Capital City | 0 | - | 5.00 | 66,441 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,217 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,799 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,329 |
| Moved Capital Cities | 0 | - | 4.96 | 73,501 |
| Countries by Official Language | 0 | - | 4.95 | 192,575 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,844 |
| Countries in their Native Language | 0 | - | 4.99 | 196,454 |
| Independence from Whom | 0 | - | 4.99 | 209,434 |
| Subdivisions by Country | 0 | - | 4.86 | 50,030 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,577 |
| Megadiverse Countries | 0 | - | 4.97 | 133,827 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,636 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,874 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,369 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,830 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,528 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,582 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,058 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,173 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,710 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,362 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,358 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,423 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,437 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,600 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,975 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,878 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,317 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,205 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,140 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,871 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,841 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,484 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,755 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,956 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,164 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,871 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,248 |
| Widest Countries East to West | 0 | - | 4.92 | 128,512 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,070 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,516 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,617 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,513 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,941 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,029 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,551 |
| Countries with Double Letters | 0 | - | 4.97 | 93,203 |
| Countries that End in N | 0 | - | 4.94 | 156,272 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,461 |
| Countries with Six Letters | 0 | - | 4.93 | 210,163 |
| Countries with W | 0 | - | 4.97 | 158,085 |
| Countries with Z | 0 | - | 4.98 | 287,269 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,422 |
| Countries That End in U | 0 | - | 4.95 | 119,435 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,313 |
| Countries that End in O | 0 | - | 4.92 | 158,467 |
| Countries that End in R | 0 | - | 4.86 | 118,193 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,805 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,848 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,173 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,373 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,560 |
| Countries That End in Y | 0 | - | 4.90 | 185,144 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,163 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,540 |
| Countries that End in I | 0 | - | 4.94 | 134,294 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,001 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,136 |
| Countries That End in NIA | 0 | - | 4.92 | 108,919 |
| Countries That End in BIA | 0 | - | 4.92 | 147,601 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 165,957 |
