| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,686 |
| Busiest Airports in Europe | 0 | - | 4.91 | 146,048 |
| World's Busiest Airports | 0 | - | 4.96 | 232,538 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,596 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,336,337 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,225 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,120 |
| Top World Languages | 0 | - | 4.92 | 820,269 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,444 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,903 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,576 |
| Places in their Native Language #2 | 0 | - | 4.79 | 133,891 |
| Cities by Airports | 0 | - | 4.49 | 88,648 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,592 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,156 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,845 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,297 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,879 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,224 |
| World Currency Quiz | 0 | - | 4.91 | 302,012 |
| Boundary Waters | 0 | - | 4.92 | 88,379 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,085 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,915 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,847 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,081 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,658 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,992 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,177 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,906 |
| Landlocked Countries | 0 | - | 4.99 | 418,973 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,857 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,501 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,679 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,908 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,490 |
| World Capitals Quiz | 0 | - | 5.00 | 5,063,884 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,010 |
| Himalayan Countries | 0 | - | 4.94 | 137,439 |
| Andean Countries | 0 | - | 4.95 | 83,947 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,235 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,667 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,840 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,357 |
| Danube Countries | 0 | - | 4.97 | 71,667 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,559 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,058 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,661 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,738 |
| European Landlocked Countries | 0 | - | 4.99 | 146,780 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,143 |
| Countries with the Most Species | 0 | - | 4.99 | 102,912 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,274 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,433 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,589 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,305 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,994 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,368 |
| Countries in the Alps | 0 | - | 4.87 | 117,694 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,011 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,136 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,371 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,425 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,989 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,098 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,599 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,288 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,191 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,970 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,557 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,481 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,340 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,927 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,190 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,209 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,194 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,065 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,574 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,533 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,394 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,234 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,001 |
| Largest Countries By Category | 0 | - | 4.97 | 157,644 |
| Countries by Countries | 0 | - | 4.96 | 62,843 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,161 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,325 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,757,061 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,380 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,736 |
| Demonyms Quiz | 0 | - | 4.15 | 185,083 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,390 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,078 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,077 |
| Longest International Borders | 0 | - | 4.99 | 264,668 |
| Countries with Three Borders | 0 | - | 4.96 | 36,454 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,914 |
| Largest Cities for each Latitude Degree | 0 | - | 5.00 | 48,014 |
| Demonym of Every Country | 0 | - | 4.91 | 59,152 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,025 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,968 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,616 |
| Island Countries | 0 | - | 4.99 | 709,766 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,078 |
| Northernmost Countries | 0 | - | 4.99 | 360,483 |
| Countries of South America | 0 | - | 5.00 | 922,940 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,088 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,438 |
| "Land" Countries | 0 | - | 4.98 | 335,802 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,873 |
| Airline Logos | 0 | - | 4.45 | 140,552 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,769 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,240 |
| All Country Flags of the World | 0 | - | 5.00 | 3,649,847 |
| Foods of the World by Description | 0 | - | 4.18 | 46,008 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,347 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,286 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,317 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,757 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,030 |
| Countries with Megacities | 0 | - | 4.99 | 260,127 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,904 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,998 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,178 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,008 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,785 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,091 |
| Cities by Famous Street | 0 | - | 3.96 | 48,306 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,113 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,871 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,973 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,248 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,283 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,981 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,652 |
| Countries by Capital City | 0 | - | 5.00 | 67,941 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,978 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,472 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,677 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,981 |
| Moved Capital Cities | 0 | - | 4.96 | 74,067 |
| Countries by Official Language | 0 | - | 4.95 | 194,645 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,541 |
| Countries in their Native Language | 0 | - | 4.99 | 198,189 |
| Independence from Whom | 0 | - | 4.99 | 211,322 |
| Subdivisions by Country | 0 | - | 4.86 | 50,288 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,710 |
| Megadiverse Countries | 0 | - | 4.96 | 134,769 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,548 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,186 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,756 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,018 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,715 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,381 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,981 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,846 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,490 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,990 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,983 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,719 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,995 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,776 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,157 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,327 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,201 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,034 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,510 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,929 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,641 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,335 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,519 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,673 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,831 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,263 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,286 |
| Widest Countries East to West | 0 | - | 4.92 | 129,378 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,382 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,966 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,994 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,512 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,223 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,552 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,235 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,728 |
| Airlines by Country | 0 | - | 4.52 | 135,248 |
| Countries with Double Letters | 0 | - | 4.97 | 95,098 |
| Countries that End in N | 0 | - | 4.95 | 170,001 |
| Countries with Five Letters | 0 | - | 4.96 | 280,256 |
| Countries with Six Letters | 0 | - | 4.94 | 212,488 |
| Countries with W | 0 | - | 4.97 | 159,523 |
| Countries with Z | 0 | - | 4.98 | 289,811 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,753 |
| Countries That End in U | 0 | - | 4.95 | 120,415 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,757 |
| Countries that End in O | 0 | - | 4.92 | 159,199 |
| Countries that End in R | 0 | - | 4.87 | 118,735 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,515 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,338 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,111 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,087 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,669 |
| Countries That End in Y | 0 | - | 4.90 | 185,649 |
