| Busiest Airports in Europe | 0 | - | 4.91 | 144,911 |
| World's Busiest Airports | 0 | - | 4.94 | 210,487 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,925,750 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,143 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,092 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,564 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,880 |
| Top World Languages | 0 | - | 4.92 | 813,250 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,778 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,485 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,982 |
| Cities by Airports | 0 | - | 4.49 | 87,910 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,204 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,291 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,886 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,039 |
| 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 | 88,047 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,818 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,296 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,598 |
| World Currency Quiz | 0 | - | 4.92 | 298,550 |
| 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 | 413,690 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,608 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,483 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,164 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,640 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,019 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,134 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,089 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,619 |
| Himalayan Countries | 0 | - | 4.95 | 135,384 |
| Andean Countries | 0 | - | 4.94 | 82,835 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,225 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,226 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,914 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,618 |
| Danube Countries | 0 | - | 4.97 | 71,090 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,770 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,541 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,497 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,413 |
| European Landlocked Countries | 0 | - | 4.99 | 145,760 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,221 |
| Countries with the Most Species | 0 | - | 4.99 | 95,245 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,356 |
| 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 | 72,579 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,953 |
| Countries in the Alps | 0 | - | 4.86 | 116,832 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,817 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,576 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,268 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,015 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,427 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,174 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,009 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,585 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,761 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,316 |
| 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 | 103,455 |
| 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 | 117,081 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,652 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,255 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,774 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,331 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,691 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,607 |
| Largest Countries By Category | 0 | - | 4.97 | 156,771 |
| 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 | 3,717,484 |
| 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 | 184,840 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,240 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,432 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,624 |
| 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 | 47,676 |
| Demonym of Every Country | 0 | - | 4.91 | 58,646 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,216 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,080 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,299 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,141 |
| Island Countries | 0 | - | 4.99 | 707,653 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,538 |
| Northernmost Countries | 0 | - | 4.99 | 357,762 |
| Countries of South America | 0 | - | 5.00 | 914,884 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,606 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,612 |
| "Land" Countries | 0 | - | 4.98 | 333,673 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,877 |
| Airline Logos | 0 | - | 4.45 | 139,967 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,165 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,278 |
| Countries with Megacities | 0 | - | 4.99 | 246,997 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,157 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,000 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,584 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,899 |
| 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 | 134,789 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,964 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,662 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,613 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,647 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,471 |
| Countries by Capital City | 0 | - | 5.00 | 66,676 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,344 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,913 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,419 |
| 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 | 293,149 |
| Countries in their Native Language | 0 | - | 4.99 | 196,646 |
| Independence from Whom | 0 | - | 4.99 | 209,712 |
| Subdivisions by Country | 0 | - | 4.86 | 50,069 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,769 |
| Megadiverse Countries | 0 | - | 4.97 | 133,907 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,810 |
| 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 | 161,671 |
| 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 | 153,152 |
| 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 | 75,581 |
| 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 | 136,506 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,682 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,030 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,496 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,609 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,336 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,365 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,997 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,959 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,787 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,860 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,067 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,281 |
| 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 | 185,224 |
| 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 | 147,638 |
| 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 | 34,585 |
| Countries with Double Letters | 0 | - | 4.97 | 93,399 |
| Countries that End in N | 0 | - | 4.94 | 156,890 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,698 |
| Countries with Six Letters | 0 | - | 4.93 | 210,376 |
| Countries with W | 0 | - | 4.97 | 158,237 |
| Countries with Z | 0 | - | 4.98 | 287,891 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,560 |
| Countries That End in U | 0 | - | 4.95 | 119,521 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,569 |
| Countries that End in O | 0 | - | 4.92 | 158,560 |
| 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 | 207,044 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,340 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,500 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,030 |
| Countries That End in Y | 0 | - | 4.90 | 185,209 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,387 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,696 |
| Countries that End in I | 0 | - | 4.94 | 134,418 |
| 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 | 166,070 |
