| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,310 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,813 |
| World's Busiest Airports | 0 | - | 4.96 | 230,616 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,228 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,211,505 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,045 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,212 |
| Top World Languages | 0 | - | 4.92 | 818,208 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,293 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,748 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,853 |
| Places in their Native Language #2 | 0 | - | 4.83 | 130,043 |
| Cities by Airports | 0 | - | 4.49 | 88,550 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,282 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,769 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,327 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,220 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,839 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,058 |
| World Currency Quiz | 0 | - | 4.92 | 300,956 |
| Boundary Waters | 0 | - | 4.92 | 88,286 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,006 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,710 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,683 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,006 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,549 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,877 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,982 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,873 |
| Landlocked Countries | 0 | - | 4.99 | 417,256 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,807 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,425 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,387 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,650 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,395 |
| World Capitals Quiz | 0 | - | 5.00 | 5,054,145 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,213 |
| Himalayan Countries | 0 | - | 4.95 | 136,760 |
| Andean Countries | 0 | - | 4.95 | 83,603 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,864 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,165 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,528 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,123 |
| Danube Countries | 0 | - | 4.97 | 71,487 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,301 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,903 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,297 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,296 |
| European Landlocked Countries | 0 | - | 4.99 | 146,195 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,876 |
| Countries with the Most Species | 0 | - | 4.99 | 102,377 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,004 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,355 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,535 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,204 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,856 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,234 |
| Countries in the Alps | 0 | - | 4.86 | 117,433 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,957 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,963 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,041 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,305 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,803 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,901 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,322 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,071 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,043 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,860 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,393 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,397 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,240 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,789 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,051 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,063 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,839 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,941 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,467 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,307 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,363 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,749 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,874 |
| Largest Countries By Category | 0 | - | 4.97 | 157,356 |
| Countries by Countries | 0 | - | 4.96 | 62,667 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,109 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,144 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,210 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,180 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,682 |
| Demonyms Quiz | 0 | - | 4.15 | 185,022 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,344 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,648 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,952 |
| Longest International Borders | 0 | - | 4.99 | 264,408 |
| Countries with Three Borders | 0 | - | 4.96 | 36,378 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,819 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,908 |
| Demonym of Every Country | 0 | - | 4.91 | 58,983 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,541 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,312 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,093 |
| Island Countries | 0 | - | 4.99 | 709,090 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,112 |
| Northernmost Countries | 0 | - | 4.99 | 359,714 |
| Countries of South America | 0 | - | 5.00 | 920,522 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,093 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,887 |
| "Land" Countries | 0 | - | 4.98 | 335,177 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,600 |
| Airline Logos | 0 | - | 4.45 | 140,362 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,020 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,750 |
| All Country Flags of the World | 0 | - | 5.00 | 3,635,458 |
| Foods of the World by Description | 0 | - | 4.18 | 45,988 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,283 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,263 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,893 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,100 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,485 |
| Countries with Megacities | 0 | - | 4.99 | 249,418 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,340 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,668 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,667 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,639 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,813 |
| 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 | 135,571 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,691 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,102 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,131 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,646 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,294 |
| Countries by Capital City | 0 | - | 5.00 | 67,613 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,820 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,312 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,007 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,769 |
| Moved Capital Cities | 0 | - | 4.96 | 73,932 |
| Countries by Official Language | 0 | - | 4.95 | 194,237 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,058 |
| Countries in their Native Language | 0 | - | 4.99 | 197,837 |
| Independence from Whom | 0 | - | 4.99 | 210,972 |
| Subdivisions by Country | 0 | - | 4.86 | 50,223 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,447 |
| Megadiverse Countries | 0 | - | 4.96 | 134,602 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,998 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,108 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,660 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,964 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,515 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,273 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,702 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,595 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,407 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,821 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,471 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,617 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,713 |
| 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 | 109,746 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,771 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,183 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,739 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,473 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,885 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,347 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,522 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,684 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,180 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,112 |
| Widest Countries East to West | 0 | - | 4.92 | 129,218 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,342 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,737 |
| 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 | 93,996 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,045 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,418 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,156 |
| 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 | 94,570 |
| Countries that End in N | 0 | - | 4.95 | 168,636 |
| Countries with Five Letters | 0 | - | 4.96 | 272,757 |
| Countries with Six Letters | 0 | - | 4.93 | 211,825 |
| Countries with W | 0 | - | 4.97 | 159,155 |
| Countries with Z | 0 | - | 4.98 | 289,243 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,347 |
| Countries That End in U | 0 | - | 4.95 | 120,193 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,379 |
| Countries that End in O | 0 | - | 4.92 | 159,029 |
| Countries that End in R | 0 | - | 4.87 | 118,607 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,384 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,958 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,877 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,906 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,492 |
| Countries That End in Y | 0 | - | 4.90 | 185,517 |
