| Busiest Airports in Europe | 0 | - | 4.91 | 146,604 |
| World's Busiest Airports | 0 | - | 4.96 | 235,274 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,629,539 |
| Countries with the Most Airports | 0 | - | 4.96 | 99,564 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 215,688 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,555 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,698 |
| Top World Languages | 0 | - | 4.92 | 825,169 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,863 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,589 |
| Cities by Airports | 0 | - | 4.47 | 102,430 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,233 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,057 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 122,177 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,448 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,020 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,354 |
| Boundary Waters | 0 | - | 4.92 | 88,608 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,276 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,335 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,648 |
| World Currency Quiz | 0 | - | 4.92 | 304,549 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,945 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,357 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,365 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,916 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,621 |
| Landlocked Countries | 0 | - | 4.99 | 422,572 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,269 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,660 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,738 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,490 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,506 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,748 |
| World Capitals Quiz | 0 | - | 5.00 | 5,086,893 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,816 |
| Himalayan Countries | 0 | - | 4.95 | 138,994 |
| Andean Countries | 0 | - | 4.93 | 84,778 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,006 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,075 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,590 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,916 |
| Danube Countries | 0 | - | 4.97 | 72,094 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,118 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,488 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,440 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,922 |
| European Landlocked Countries | 0 | - | 4.99 | 147,225 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,759 |
| Countries with the Most Species | 0 | - | 4.99 | 103,303 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,875 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,628 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,748 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,596 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,313 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,733 |
| Countries in the Alps | 0 | - | 4.87 | 118,305 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,158 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,483 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,165 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,716 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,667 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,581 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,995 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,746 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,563 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,224 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,916 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,689 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,569 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,286 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,534 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,598 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,044 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,364 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,436 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,192 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,249 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,303 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,276 |
| Largest Countries By Category | 0 | - | 4.97 | 158,329 |
| Countries by Countries | 0 | - | 4.96 | 63,311 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,308 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,744 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,782,969 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,975 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,758 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,874 |
| Demonyms Quiz | 0 | - | 4.15 | 185,343 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,515 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,146 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,335 |
| Longest International Borders | 0 | - | 4.99 | 265,306 |
| Countries with Three Borders | 0 | - | 4.96 | 36,638 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,152 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,261 |
| Demonym of Every Country | 0 | - | 4.91 | 60,845 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,342 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,113 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,592,063 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,677 |
| Island Countries | 0 | - | 4.99 | 711,243 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,599 |
| Northernmost Countries | 0 | - | 4.99 | 362,250 |
| Countries of South America | 0 | - | 5.00 | 928,163 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,999 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,879,097 |
| "Land" Countries | 0 | - | 4.98 | 337,509 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,615 |
| Airline Logos | 0 | - | 4.45 | 141,057 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,567 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,066 |
| Countries with Megacities | 0 | - | 4.99 | 264,966 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,888 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,571 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,155 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,641 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,154 |
| Cities by Famous Street | 0 | - | 3.96 | 48,349 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,156 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,653 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,619 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,606 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,738 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,580 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,437 |
| Countries by Capital City | 0 | - | 5.00 | 68,723 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,423 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,866 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,456 |
| Moved Capital Cities | 0 | - | 4.96 | 74,392 |
| Countries by Official Language | 0 | - | 4.95 | 195,362 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,535 |
| Countries in their Native Language | 0 | - | 4.99 | 199,153 |
| Independence from Whom | 0 | - | 4.99 | 212,243 |
| Subdivisions by Country | 0 | - | 4.87 | 50,456 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,833 |
| Megadiverse Countries | 0 | - | 4.96 | 135,062 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,196 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,390 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,268 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,128 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,205 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,632 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,552 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,072 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,689 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,165 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,799 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,927 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,236 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,999 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,390 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,519 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,149 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,369 |
| World Map Quiz | 0 | - | 4.81 | 65,179 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,405 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,204 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,350 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,051 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,395 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,952 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,062 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,343 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,477 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,612 |
| Widest Countries East to West | 0 | - | 4.92 | 129,712 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,470 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,448 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,143 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,809 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,641 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,924 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,396 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,813 |
| Countries with Double Letters | 0 | - | 4.96 | 96,364 |
| Countries that End in N | 0 | - | 4.95 | 171,257 |
| Countries with Five Letters | 0 | - | 4.96 | 282,732 |
| Countries with Six Letters | 0 | - | 4.94 | 213,691 |
| Countries with W | 0 | - | 4.97 | 160,425 |
| Countries with Z | 0 | - | 4.98 | 291,604 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,786 |
| Countries That End in U | 0 | - | 4.95 | 120,894 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,547 |
| Countries that End in O | 0 | - | 4.92 | 159,548 |
| Countries that End in R | 0 | - | 4.87 | 118,998 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,761 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,217 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,752 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,522 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,443 |
| Countries That End in Y | 0 | - | 4.91 | 185,906 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,997 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,919 |
| Countries that End in I | 0 | - | 4.94 | 135,133 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,174 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,851 |
| Countries That End in NIA | 0 | - | 4.92 | 109,830 |
| Countries That End in BIA | 0 | - | 4.93 | 149,261 |
