| Busiest Airports in Europe | 0 | - | 4.91 | 147,070 |
| World's Busiest Airports | 0 | - | 4.96 | 237,415 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,237 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 216,668 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,896,259 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,815 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,814 |
| Top World Languages | 0 | - | 4.92 | 830,096 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,163 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,403 |
| Cities by Airports | 0 | - | 4.47 | 104,058 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,856 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,871 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,320 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,581 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,120 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,805 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,035 |
| World Currency Quiz | 0 | - | 4.92 | 306,889 |
| 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 | 96,721 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,370 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,988 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,712 |
| 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 | 103,564 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,109 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,979 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,977 |
| Landlocked Countries | 0 | - | 4.99 | 426,112 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,108 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,936 |
| 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 | 125,037 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,949 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,531 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,390 |
| Himalayan Countries | 0 | - | 4.93 | 140,346 |
| Andean Countries | 0 | - | 4.94 | 85,522 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,669 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,085 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,243 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,475 |
| Danube Countries | 0 | - | 4.97 | 72,433 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,627 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,864 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,176 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,652 |
| European Landlocked Countries | 0 | - | 4.99 | 147,629 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,341 |
| Countries with the Most Species | 0 | - | 4.99 | 103,583 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,437 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,784 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,893 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,857 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,592 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,038 |
| Countries in the Alps | 0 | - | 4.87 | 118,814 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,316 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,690 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,919 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,978 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,044 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,986 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,283 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,431 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,883 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,442 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,202 |
| 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 | 104,575 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,820 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,909 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,903 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,634 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,246 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,708 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,817 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,206 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,530 |
| Largest Countries By Category | 0 | - | 4.97 | 158,895 |
| Countries by Countries | 0 | - | 4.96 | 63,665 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,290 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,411 |
| 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 | 3,805,855 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,482 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,991 |
| Demonyms Quiz | 0 | - | 4.15 | 185,551 |
| Airports Named for People #2 | 0 | - | 4.23 | 15,528 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,622 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,154 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,586 |
| Longest International Borders | 0 | - | 4.99 | 265,843 |
| Countries with Three Borders | 0 | - | 4.96 | 36,782 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,368 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,504 |
| Demonym of Every Country | 0 | - | 4.90 | 61,507 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,651 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,041 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,748 |
| Island Countries | 0 | - | 4.99 | 712,640 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,998 |
| Northernmost Countries | 0 | - | 4.99 | 364,121 |
| Countries of South America | 0 | - | 5.00 | 932,990 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,774 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,040 |
| "Land" Countries | 0 | - | 4.98 | 338,441 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,244 |
| Airline Logos | 0 | - | 4.45 | 141,464 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,351 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,998 |
| All Country Flags of the World | 0 | - | 5.00 | 3,715,723 |
| Foods of the World by Description | 0 | - | 4.18 | 46,141 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,737 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,395 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,007 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,026 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,688 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,468 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,576 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,227 |
| Countries with Megacities | 0 | - | 4.99 | 267,259 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,913 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,173 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,226 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,287 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,826 |
| 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 | 137,345 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,386 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,989 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,232 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,258 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,184 |
| Countries by Capital City | 0 | - | 5.00 | 69,440 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,880 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,257 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,981 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,833 |
| Moved Capital Cities | 0 | - | 4.96 | 74,667 |
| Countries by Official Language | 0 | - | 4.95 | 196,039 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,683 |
| Countries in their Native Language | 0 | - | 4.99 | 199,781 |
| Independence from Whom | 0 | - | 4.99 | 213,127 |
| Subdivisions by Country | 0 | - | 4.87 | 50,626 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,480 |
| Megadiverse Countries | 0 | - | 4.96 | 135,294 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,980 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,547 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,709 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,232 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,297 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,863 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,139 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,576 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,084 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,262 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,579 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,391 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,452 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,157 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,595 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,888 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,414 |
| World Map Quiz | 0 | - | 4.81 | 65,771 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,383 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,729 |
| Countries by Founding Story | 0 | - | 4.95 | 77,822 |
| Countries by Road Signs | 0 | - | 4.98 | 54,368 |
| 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 | 123,590 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,645 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,464 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,566 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,765 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,713 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,774 |
| Widest Countries East to West | 0 | - | 4.92 | 130,616 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,604 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,278 |
| 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 | 95,076 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,003 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,503 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,511 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,897 |
| Airlines by Country | 0 | - | 4.52 | 135,859 |
| Countries with Double Letters | 0 | - | 4.96 | 97,131 |
| Countries that End in N | 0 | - | 4.95 | 172,009 |
| Countries with Five Letters | 0 | - | 4.96 | 283,964 |
| Countries with Six Letters | 0 | - | 4.94 | 214,544 |
