| Busiest Airports in Europe | 0 | - | 4.91 | 146,444 |
| World's Busiest Airports | 0 | - | 4.96 | 234,764 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,578,588 |
| Countries with the Most Airports | 0 | - | 4.96 | 99,206 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 215,407 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,499 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,174 |
| Top World Languages | 0 | - | 4.92 | 824,145 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,744 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,262 |
| Cities by Airports | 0 | - | 4.49 | 89,523 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,096 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,875 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,912 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,418 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,961 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,228 |
| Boundary Waters | 0 | - | 4.92 | 88,566 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,246 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,261 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,593 |
| World Currency Quiz | 0 | - | 4.92 | 304,098 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,937 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,114 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,200 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,876 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,487 |
| Landlocked Countries | 0 | - | 4.99 | 421,918 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,184 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,576 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,703 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,405 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,415 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,667 |
| World Capitals Quiz | 0 | - | 5.00 | 5,082,919 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,408 |
| Himalayan Countries | 0 | - | 4.94 | 138,692 |
| Andean Countries | 0 | - | 4.93 | 84,591 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,787 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,794 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,410 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,797 |
| Danube Countries | 0 | - | 4.97 | 72,001 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,007 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,419 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,292 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,772 |
| European Landlocked Countries | 0 | - | 4.99 | 147,138 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,629 |
| Countries with the Most Species | 0 | - | 4.99 | 103,240 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,753 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,590 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,721 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,538 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,222 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,655 |
| Countries in the Alps | 0 | - | 4.87 | 118,195 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,125 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,080 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,025 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,639 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,593 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,504 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,945 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,669 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,487 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,176 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,839 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,650 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,521 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,218 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,463 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,515 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,893 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,304 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 63,710 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,064 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,901 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,084 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,224 |
| Largest Countries By Category | 0 | - | 4.97 | 158,200 |
| Countries by Countries | 0 | - | 4.96 | 63,219 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,284 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,673 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,778,248 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,961 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,702 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,859 |
| Demonyms Quiz | 0 | - | 4.15 | 185,294 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,498 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,989 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,285 |
| Longest International Borders | 0 | - | 4.99 | 265,195 |
| Countries with Three Borders | 0 | - | 4.96 | 36,611 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,123 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,222 |
| Demonym of Every Country | 0 | - | 4.91 | 60,696 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,333 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,535 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,341 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,486 |
| Island Countries | 0 | - | 4.99 | 711,026 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,796 |
| Northernmost Countries | 0 | - | 4.99 | 361,941 |
| Countries of South America | 0 | - | 5.00 | 927,270 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,756 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,877,105 |
| "Land" Countries | 0 | - | 4.98 | 337,319 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,480 |
| Airline Logos | 0 | - | 4.45 | 140,979 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,448 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,872 |
| Countries with Megacities | 0 | - | 4.99 | 264,511 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,727 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,460 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,984 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,534 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,141 |
| Cities by Famous Street | 0 | - | 3.96 | 48,339 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,146 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,433 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,514 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,536 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,660 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,469 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,284 |
| Countries by Capital City | 0 | - | 5.00 | 68,605 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,356 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,795 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,389 |
| Moved Capital Cities | 0 | - | 4.96 | 74,330 |
| Countries by Official Language | 0 | - | 4.95 | 195,235 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,359 |
| Countries in their Native Language | 0 | - | 4.99 | 199,032 |
| Independence from Whom | 0 | - | 4.99 | 212,075 |
| Subdivisions by Country | 0 | - | 4.86 | 50,430 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,718 |
| Megadiverse Countries | 0 | - | 4.96 | 135,006 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,074 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,346 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,233 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,097 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,132 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,593 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,460 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,029 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,652 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,145 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,660 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,877 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,199 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,960 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,344 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,494 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,383,559 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,165 |
| World Map Quiz | 0 | - | 4.81 | 65,072 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,344 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,082 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,272 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,992 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,174 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,881 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,004 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,294 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,435 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,567 |
| Widest Countries East to West | 0 | - | 4.92 | 129,634 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,451 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,367 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,117 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,764 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,593 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,864 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,371 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,796 |
| Countries with Double Letters | 0 | - | 4.96 | 96,220 |
| Countries that End in N | 0 | - | 4.95 | 171,096 |
| Countries with Five Letters | 0 | - | 4.96 | 282,414 |
| Countries with Six Letters | 0 | - | 4.94 | 213,523 |
| Countries with W | 0 | - | 4.97 | 160,310 |
| Countries with Z | 0 | - | 4.98 | 291,422 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,681 |
| Countries That End in U | 0 | - | 4.95 | 120,844 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,444 |
| Countries that End in O | 0 | - | 4.92 | 159,503 |
| Countries that End in R | 0 | - | 4.87 | 118,962 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,724 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,061 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,682 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,465 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,386 |
| Countries That End in Y | 0 | - | 4.91 | 185,865 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,898 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,842 |
| Countries that End in I | 0 | - | 4.94 | 135,085 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,083 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,815 |
| Countries That End in NIA | 0 | - | 4.92 | 109,778 |
| Countries That End in BIA | 0 | - | 4.93 | 149,187 |
