| Busiest Airports in Europe | 0 | - | 4.91 | 144,935 |
| World's Busiest Airports | 0 | - | 4.94 | 210,563 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,939,166 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,193 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,143 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,572 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,970 |
| Top World Languages | 0 | - | 4.92 | 813,424 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,790 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,517 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,998 |
| Cities by Airports | 0 | - | 4.49 | 88,161 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,229 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,321 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,921 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,088 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,966 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,697 |
| Boundary Waters | 0 | - | 4.92 | 88,061 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,826 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,318 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,613 |
| World Currency Quiz | 0 | - | 4.92 | 298,646 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,781 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,032 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,801 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,277 |
| Landlocked Countries | 0 | - | 4.99 | 413,830 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,616 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,507 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,179 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,681 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,067 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,143 |
| World Capitals Quiz | 0 | - | 5.00 | 5,033,084 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,679 |
| Himalayan Countries | 0 | - | 4.95 | 135,439 |
| Andean Countries | 0 | - | 4.94 | 82,855 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,252 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,253 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,937 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,630 |
| Danube Countries | 0 | - | 4.97 | 71,097 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,784 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,555 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,528 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,451 |
| European Landlocked Countries | 0 | - | 4.99 | 145,779 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,240 |
| Countries with the Most Species | 0 | - | 4.99 | 95,253 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,383 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,205 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,374 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,969 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,586 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,965 |
| Countries in the Alps | 0 | - | 4.86 | 116,862 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,820 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,586 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,289 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,024 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,440 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,196 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,024 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,600 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,776 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,390 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,082 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,202 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,053 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,462 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,770 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,769 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,118 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,665 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,266 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,797 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,415 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,739 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,615 |
| Largest Countries By Category | 0 | - | 4.97 | 156,798 |
| Countries by Countries | 0 | - | 4.96 | 62,274 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,972 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,788 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,718,973 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,704 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,737 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,493 |
| Demonyms Quiz | 0 | - | 4.15 | 184,852 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,242 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,481 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,639 |
| Longest International Borders | 0 | - | 4.99 | 263,565 |
| Countries with Three Borders | 0 | - | 4.96 | 36,195 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,613 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,697 |
| Demonym of Every Country | 0 | - | 4.91 | 58,661 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,216 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,338 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,643 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,182 |
| Island Countries | 0 | - | 4.99 | 707,710 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,764 |
| Northernmost Countries | 0 | - | 4.99 | 357,854 |
| Countries of South America | 0 | - | 5.00 | 915,194 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,015 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,849,270 |
| "Land" Countries | 0 | - | 4.98 | 333,711 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,912 |
| Airline Logos | 0 | - | 4.45 | 139,985 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,172 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,415 |
| Countries with Megacities | 0 | - | 4.99 | 247,222 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,258 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,077 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,691 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,992 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,030 |
| Cities by Famous Street | 0 | - | 3.96 | 48,249 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,068 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,827 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,993 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,677 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,630 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,675 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,499 |
| Countries by Capital City | 0 | - | 5.00 | 66,709 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,364 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,933 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,432 |
| Moved Capital Cities | 0 | - | 4.96 | 73,608 |
| Countries by Official Language | 0 | - | 4.95 | 192,816 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,182 |
| Countries in their Native Language | 0 | - | 4.99 | 196,683 |
| Independence from Whom | 0 | - | 4.99 | 209,760 |
| Subdivisions by Country | 0 | - | 4.86 | 50,077 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,806 |
| Megadiverse Countries | 0 | - | 4.97 | 133,920 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,839 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,928 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,436 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,866 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,697 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,022 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,081 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,165 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,223 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,752 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,630 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,437 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,508 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,512 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,699 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,034 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,915 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,643 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,355 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,403 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,021 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,975 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,833 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,882 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,087 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,300 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,959 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,352 |
| Widest Countries East to West | 0 | - | 4.92 | 128,624 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,255 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,582 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,702 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,659 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,074 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,055 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,589 |
| Countries with Double Letters | 0 | - | 4.97 | 93,431 |
| Countries that End in N | 0 | - | 4.94 | 156,923 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,729 |
| Countries with Six Letters | 0 | - | 4.93 | 210,403 |
| Countries with W | 0 | - | 4.97 | 158,256 |
| Countries with Z | 0 | - | 4.98 | 287,924 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,581 |
| Countries That End in U | 0 | - | 4.95 | 119,533 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,614 |
| Countries that End in O | 0 | - | 4.92 | 158,572 |
| Countries that End in R | 0 | - | 4.87 | 118,285 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,866 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,105 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,365 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,518 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,056 |
| Countries That End in Y | 0 | - | 4.90 | 185,220 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,413 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,713 |
| Countries that End in I | 0 | - | 4.94 | 134,432 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,243 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,210 |
| Countries That End in NIA | 0 | - | 4.92 | 109,023 |
| Countries That End in BIA | 0 | - | 4.92 | 147,734 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,096 |
