| Busiest Airports in Europe | 0 | - | 4.91 | 145,965 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,288,102 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,463 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,562 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,178 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,760 |
| Top World Languages | 0 | - | 4.92 | 819,472 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,384 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,425 |
| Places in their Native Language #2 | 0 | - | 4.81 | 133,486 |
| Cities by Airports | 0 | - | 4.49 | 88,610 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,478 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,992 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,632 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,270 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,863 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,843 |
| Boundary Waters | 0 | - | 4.92 | 88,348 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,054 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,857 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,159 |
| World Currency Quiz | 0 | - | 4.91 | 301,592 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,894 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,784 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,051 |
| Largest Countries with Little Tourism | 0 | - | 4.69 | 61,626 |
| Landlocked Countries | 0 | - | 4.99 | 418,233 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,937 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,106 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,474 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,568 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,801 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,450 |
| World Capitals Quiz | 0 | - | 5.00 | 5,059,963 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,628 |
| Himalayan Countries | 0 | - | 4.94 | 137,115 |
| Andean Countries | 0 | - | 4.95 | 83,778 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,018 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,397 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,694 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,256 |
| Danube Countries | 0 | - | 4.97 | 71,583 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,449 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,986 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,521 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,579 |
| European Landlocked Countries | 0 | - | 4.99 | 146,695 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,024 |
| Countries with the Most Species | 0 | - | 4.99 | 102,811 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,159 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,400 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,558 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,261 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,932 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,310 |
| Countries in the Alps | 0 | - | 4.87 | 117,586 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,986 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,064 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,245 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,370 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,913 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,021 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,395 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,189 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,131 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,929 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,493 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,443 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,302 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,875 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,137 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,161 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,040 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,013 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,536 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,427 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,990 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,070 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,944 |
| Largest Countries By Category | 0 | - | 4.97 | 157,536 |
| Countries by Countries | 0 | - | 4.96 | 62,778 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,138 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,263 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,752,801 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,844 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,313 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,713 |
| Demonyms Quiz | 0 | - | 4.15 | 185,057 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,377 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,926 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,027 |
| Longest International Borders | 0 | - | 4.99 | 264,556 |
| Countries with Three Borders | 0 | - | 4.96 | 36,422 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,878 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,971 |
| Demonym of Every Country | 0 | - | 4.91 | 59,094 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,275 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,346 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,581,636 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,411 |
| Island Countries | 0 | - | 4.99 | 709,469 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,324 |
| Northernmost Countries | 0 | - | 4.99 | 360,180 |
| Countries of South America | 0 | - | 5.00 | 922,101 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,954 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,441 |
| "Land" Countries | 0 | - | 4.98 | 335,641 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,758 |
| Airline Logos | 0 | - | 4.45 | 140,484 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,321 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,090 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,776 |
| Countries with Megacities | 0 | - | 4.99 | 249,972 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,630 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,852 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,937 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,829 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,083 |
| Cities by Famous Street | 0 | - | 3.96 | 48,301 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,106 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,759 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,863 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,197 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,218 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,866 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,488 |
| Countries by Capital City | 0 | - | 5.00 | 67,825 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,911 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,415 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,905 |
| Moved Capital Cities | 0 | - | 4.96 | 74,003 |
| Countries by Official Language | 0 | - | 4.95 | 194,511 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,358 |
| Countries in their Native Language | 0 | - | 4.99 | 198,076 |
| Independence from Whom | 0 | - | 4.99 | 211,181 |
| Subdivisions by Country | 0 | - | 4.86 | 50,262 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,601 |
| Megadiverse Countries | 0 | - | 4.96 | 134,719 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,194 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,152 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,719 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,999 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,642 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,331 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,873 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,790 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,456 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,956 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,797 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,673 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,936 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,746 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,096 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,289 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,231 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,006 |
| World Map Quiz | 0 | - | 4.81 | 64,410 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,964 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,376 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,863 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,573 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,148 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,453 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,629 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,771 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,228 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,228 |
| Widest Countries East to West | 0 | - | 4.92 | 129,316 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,372 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,882 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,976 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,468 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,150 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,487 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,210 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,713 |
| Countries with Double Letters | 0 | - | 4.97 | 94,978 |
| Countries that End in N | 0 | - | 4.95 | 169,712 |
| Countries with Five Letters | 0 | - | 4.96 | 279,237 |
| Countries with Six Letters | 0 | - | 4.94 | 212,326 |
| Countries with W | 0 | - | 4.97 | 159,427 |
| Countries with Z | 0 | - | 4.98 | 289,662 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,639 |
| Countries That End in U | 0 | - | 4.95 | 120,366 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,659 |
| Countries that End in O | 0 | - | 4.92 | 159,160 |
| Countries that End in R | 0 | - | 4.87 | 118,697 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,477 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,205 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,039 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,040 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,621 |
| Countries That End in Y | 0 | - | 4.90 | 185,613 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,142 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,344 |
| Countries that End in I | 0 | - | 4.94 | 134,833 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,992 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,544 |
| Countries That End in NIA | 0 | - | 4.92 | 109,476 |
| Countries That End in BIA | 0 | - | 4.93 | 148,785 |
