| Countries of the World Quiz | 0 | - | 5.00 | 47,212,860 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,054 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,226 |
| Top World Languages | 0 | - | 4.92 | 818,232 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,887 |
| Places in their Native Language #2 | 0 | - | 4.83 | 130,278 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,818 |
| World's Busiest Airports | 0 | - | 4.96 | 230,650 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,808 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,284 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,233 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,773 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,333 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,314 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,221 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,060 |
| World Currency Quiz | 0 | - | 4.92 | 300,967 |
| Boundary Waters | 0 | - | 4.92 | 88,287 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,006 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,713 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,930 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,196 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,687 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,008 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,551 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,883 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,984 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,873 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,296 |
| Cities by Airports | 0 | - | 4.49 | 88,555 |
| Landlocked Countries | 0 | - | 4.99 | 417,272 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,426 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,438 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,391 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,654 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,395 |
| World Capitals Quiz | 0 | - | 5.00 | 5,054,250 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,218 |
| Himalayan Countries | 0 | - | 4.95 | 136,762 |
| Andean Countries | 0 | - | 4.95 | 83,604 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,866 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,168 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,532 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,126 |
| Danube Countries | 0 | - | 4.97 | 71,488 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,304 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,904 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,298 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,298 |
| European Landlocked Countries | 0 | - | 4.99 | 146,197 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,878 |
| Countries with the Most Species | 0 | - | 4.99 | 102,387 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,009 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,357 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,536 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,205 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,857 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,234 |
| Countries in the Alps | 0 | - | 4.86 | 117,435 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,957 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,964 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,046 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,305 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,808 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,905 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,322 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,073 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,044 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,861 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,394 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,398 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,241 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,790 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,052 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,064 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,840 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,942 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,468 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,310 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,370 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,751 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,876 |
| Largest Countries By Category | 0 | - | 4.97 | 157,356 |
| Countries by Countries | 0 | - | 4.96 | 62,672 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,956 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,109 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,423 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,147 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,296 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,183 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,682 |
| Demonyms Quiz | 0 | - | 4.15 | 185,024 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,344 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,668 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,954 |
| Longest International Borders | 0 | - | 4.99 | 264,410 |
| Countries with Three Borders | 0 | - | 4.96 | 36,378 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,820 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,910 |
| Demonym of Every Country | 0 | - | 4.91 | 58,986 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,561 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,342 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,106 |
| Island Countries | 0 | - | 4.99 | 709,097 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,131 |
| Northernmost Countries | 0 | - | 4.99 | 359,722 |
| Countries of South America | 0 | - | 5.00 | 920,537 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,126 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,937 |
| "Land" Countries | 0 | - | 4.98 | 335,199 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,841 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,600 |
| Airline Logos | 0 | - | 4.45 | 140,363 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,049 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,798 |
| All Country Flags of the World | 0 | - | 5.00 | 3,635,587 |
| Foods of the World by Description | 0 | - | 4.18 | 45,988 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,748 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,283 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,264 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,956 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,599 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,257 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,917 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,109 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,493 |
| Countries with Megacities | 0 | - | 4.99 | 249,427 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,345 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,672 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,674 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,642 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,828 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,071 |
| Cities by Famous Street | 0 | - | 3.96 | 48,293 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,099 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,576 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,692 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,104 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,133 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,676 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,299 |
| Countries by Capital City | 0 | - | 5.00 | 67,616 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,821 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,315 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,013 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,769 |
| Moved Capital Cities | 0 | - | 4.96 | 73,933 |
| Countries by Official Language | 0 | - | 4.95 | 194,244 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,067 |
| Countries in their Native Language | 0 | - | 4.99 | 197,844 |
| Independence from Whom | 0 | - | 4.99 | 210,975 |
| Subdivisions by Country | 0 | - | 4.86 | 50,224 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,450 |
| Megadiverse Countries | 0 | - | 4.96 | 134,604 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,005 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,108 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,661 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,965 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,515 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,275 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,706 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,597 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,409 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,822 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,475 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,620 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,717 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,685 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,893 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,249 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,749 |
| World Map Quiz | 0 | - | 4.81 | 64,230 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,717 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,774 |
| Countries by Founding Story | 0 | - | 4.95 | 76,936 |
| Countries by Road Signs | 0 | - | 4.98 | 53,487 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,184 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,741 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,474 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,888 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,351 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,523 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,686 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,181 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,138 |
| Widest Countries East to West | 0 | - | 4.92 | 129,221 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,342 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,739 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,946 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,997 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,046 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,420 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,157 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,691 |
| Airlines by Country | 0 | - | 4.52 | 135,118 |
| Countries with Double Letters | 0 | - | 4.96 | 94,598 |
| Countries that End in N | 0 | - | 4.95 | 168,685 |
| Countries with Five Letters | 0 | - | 4.96 | 273,268 |
| Countries with Six Letters | 0 | - | 4.93 | 211,860 |
| Countries with W | 0 | - | 4.97 | 159,169 |
