| Busiest Airports in Europe | 0 | - | 4.91 | 147,069 |
| World's Busiest Airports | 0 | - | 4.96 | 237,409 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,236 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 216,662 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,894,850 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,814 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,805 |
| Top World Languages | 0 | - | 4.92 | 830,067 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,162 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,397 |
| Cities by Airports | 0 | - | 4.47 | 104,057 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,853 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,869 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,315 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,581 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,119 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,801 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,032 |
| World Currency Quiz | 0 | - | 4.92 | 306,883 |
| Boundary Waters | 0 | - | 4.92 | 88,779 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,424 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,719 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,368 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,986 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,711 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,508 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,141 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,561 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,108 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,976 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,977 |
| Landlocked Countries | 0 | - | 4.99 | 426,096 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,108 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,934 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,419 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,019 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,032 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,948 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,419 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,387 |
| Himalayan Countries | 0 | - | 4.93 | 140,340 |
| Andean Countries | 0 | - | 4.94 | 85,520 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,665 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,080 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,238 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,469 |
| Danube Countries | 0 | - | 4.97 | 72,431 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,626 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,861 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,170 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,651 |
| European Landlocked Countries | 0 | - | 4.99 | 147,627 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,339 |
| Countries with the Most Species | 0 | - | 4.99 | 103,581 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,435 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,783 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,892 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,856 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,591 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,035 |
| Countries in the Alps | 0 | - | 4.87 | 118,809 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,315 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,684 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,914 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,977 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,041 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,985 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,279 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,431 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,882 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,440 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,198 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,893 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,754 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,574 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,818 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,907 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,897 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,632 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,174 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,706 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,811 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,205 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,528 |
| Largest Countries By Category | 0 | - | 4.97 | 158,895 |
| Countries by Countries | 0 | - | 4.96 | 63,664 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,288 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,410 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,677 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,126 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,744 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,480 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,990 |
| Demonyms Quiz | 0 | - | 4.15 | 185,550 |
| Airports Named for People #2 | 0 | - | 4.23 | 15,528 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,620 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,147 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,584 |
| Longest International Borders | 0 | - | 4.99 | 265,843 |
| Countries with Three Borders | 0 | - | 4.96 | 36,781 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,367 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,502 |
| Demonym of Every Country | 0 | - | 4.90 | 61,503 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,629 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,999 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,745 |
| Island Countries | 0 | - | 4.99 | 712,635 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,989 |
| Northernmost Countries | 0 | - | 4.99 | 364,113 |
| Countries of South America | 0 | - | 5.00 | 932,973 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,731 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,889,989 |
| "Land" Countries | 0 | - | 4.98 | 338,439 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,239 |
| Airline Logos | 0 | - | 4.45 | 141,458 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,312 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,921 |
| All Country Flags of the World | 0 | - | 5.00 | 3,715,550 |
| Foods of the World by Description | 0 | - | 4.18 | 46,141 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,736 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,395 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,005 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,024 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,688 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,448 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,568 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,221 |
| Countries with Megacities | 0 | - | 4.99 | 267,246 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,907 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,171 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,221 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,284 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,812 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,186 |
| Cities by Famous Street | 0 | - | 3.96 | 48,382 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,185 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,339 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,381 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,986 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,230 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,257 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,181 |
| Countries by Capital City | 0 | - | 5.00 | 69,433 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,876 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,251 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,974 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,829 |
| Moved Capital Cities | 0 | - | 4.96 | 74,665 |
| Countries by Official Language | 0 | - | 4.95 | 196,038 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,681 |
| Countries in their Native Language | 0 | - | 4.99 | 199,769 |
| Independence from Whom | 0 | - | 4.99 | 213,122 |
| Subdivisions by Country | 0 | - | 4.87 | 50,625 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,477 |
| Megadiverse Countries | 0 | - | 4.96 | 135,293 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,976 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,546 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,707 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,232 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,296 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,862 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,139 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,575 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,082 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,262 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,576 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,389 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,449 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,157 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,594 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,887 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,409 |
| World Map Quiz | 0 | - | 4.81 | 65,769 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,375 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,729 |
| Countries by Founding Story | 0 | - | 4.95 | 77,821 |
| Countries by Road Signs | 0 | - | 4.98 | 54,365 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,305 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,115 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,586 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,642 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,462 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,564 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,763 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,712 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,768 |
| Widest Countries East to West | 0 | - | 4.92 | 130,597 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,604 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,277 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,525 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,074 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,001 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,501 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,509 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,897 |
| Airlines by Country | 0 | - | 4.52 | 135,853 |
| Countries with Double Letters | 0 | - | 4.96 | 97,124 |
| Countries that End in N | 0 | - | 4.95 | 171,999 |
| Countries with Five Letters | 0 | - | 4.96 | 283,938 |
| Countries with Six Letters | 0 | - | 4.94 | 214,536 |
