| Airport Codes Quiz #1 | 0 | - | 4.82 | 217,279 |
| Busiest Airports in Europe | 0 | - | 4.91 | 147,269 |
| World's Busiest Airports | 0 | - | 4.96 | 238,132 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,513 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,993,820 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,915 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,543 |
| Top World Languages | 0 | - | 4.92 | 831,772 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,298 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 98,020 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,682 |
| Cities by Airports | 0 | - | 4.48 | 104,177 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 137,090 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 127,147 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,776 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,636 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,153 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,172 |
| World Currency Quiz | 0 | - | 4.92 | 307,752 |
| Boundary Waters | 0 | - | 4.92 | 88,868 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,479 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,877 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,830 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,556 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,228 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,656 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,287 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,098 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,989 |
| Landlocked Countries | 0 | - | 4.99 | 427,561 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,136 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,008 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,211 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,231 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 101,017 |
| World Capitals Quiz | 0 | - | 5.00 | 5,115,932 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,064 |
| Himalayan Countries | 0 | - | 4.93 | 140,957 |
| Andean Countries | 0 | - | 4.94 | 85,866 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,974 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,588 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,520 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,738 |
| Danube Countries | 0 | - | 4.97 | 72,589 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,847 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,002 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,502 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,974 |
| European Landlocked Countries | 0 | - | 4.99 | 147,808 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,580 |
| Countries with the Most Species | 0 | - | 4.99 | 103,663 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,687 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,826 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,965 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,946 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,699 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,157 |
| Countries in the Alps | 0 | - | 4.87 | 119,022 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,363 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,075 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,218 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,082 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,207 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,177 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,413 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,629 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,022 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,529 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,339 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,969 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,846 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,695 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,946 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,049 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,209 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,759 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,677 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,874 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,472 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,591 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,635 |
| Largest Countries By Category | 0 | - | 4.97 | 159,142 |
| Countries by Countries | 0 | - | 4.97 | 63,834 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,454 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,268 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,814,617 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,611 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,032 |
| Demonyms Quiz | 0 | - | 4.15 | 185,617 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,665 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,498 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,688 |
| Longest International Borders | 0 | - | 4.99 | 266,054 |
| Countries with Three Borders | 0 | - | 4.96 | 36,849 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,441 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,589 |
| Demonym of Every Country | 0 | - | 4.90 | 61,674 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,899 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,006 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,136 |
| Island Countries | 0 | - | 4.99 | 713,116 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,540 |
| Northernmost Countries | 0 | - | 4.99 | 364,755 |
| Countries of South America | 0 | - | 5.00 | 934,736 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,013 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,139 |
| "Land" Countries | 0 | - | 4.98 | 339,123 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,453 |
| Airline Logos | 0 | - | 4.45 | 141,616 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,014 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,412 |
| All Country Flags of the World | 0 | - | 5.00 | 3,727,469 |
| Foods of the World by Description | 0 | - | 4.19 | 46,169 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,789 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,414 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,564 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,110 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,597 |
| Countries with Megacities | 0 | - | 4.99 | 268,066 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,247 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,386 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,567 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,488 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,339 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,192 |
| Cities by Famous Street | 0 | - | 3.96 | 48,392 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,196 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,557 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,613 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,116 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,379 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,499 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,453 |
| Countries by Capital City | 0 | - | 5.00 | 69,698 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,212 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,385 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,569 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,996 |
| Moved Capital Cities | 0 | - | 4.96 | 74,752 |
| Countries by Official Language | 0 | - | 4.95 | 196,294 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,034 |
| Countries in their Native Language | 0 | - | 4.99 | 200,010 |
| Independence from Whom | 0 | - | 4.99 | 213,485 |
| Subdivisions by Country | 0 | - | 4.87 | 50,679 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,731 |
| Megadiverse Countries | 0 | - | 4.96 | 149,600 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,194 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,591 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,835 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,266 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,520 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,944 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,349 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,643 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,196 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,292 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,854 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,511 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,524 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,237 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,658 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,998 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,837 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,848 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,588 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,271 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,745 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,016 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,594 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,708 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,889 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,781 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,994 |
| Widest Countries East to West | 0 | - | 4.92 | 130,892 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,637 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,451 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,580 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,183 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,287 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,639 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,547 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,930 |
| Airlines by Country | 0 | - | 4.52 | 135,959 |
| Countries with Double Letters | 0 | - | 4.96 | 97,736 |
| Countries that End in N | 0 | - | 4.95 | 172,730 |
| Countries with Five Letters | 0 | - | 4.96 | 284,775 |
| Countries with Six Letters | 0 | - | 4.94 | 215,064 |
| Countries with W | 0 | - | 4.96 | 161,387 |
| Countries with Z | 0 | - | 4.98 | 293,135 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,758 |
| Countries That End in U | 0 | - | 4.95 | 121,440 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,510 |
| Countries that End in O | 0 | - | 4.92 | 160,411 |
| Countries that End in R | 0 | - | 4.87 | 119,305 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,081 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,226 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,315 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,272 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,945 |
| Countries That End in Y | 0 | - | 4.91 | 186,194 |
