| Busiest Airports in Europe | 0 | - | 4.91 | 147,018 |
| World's Busiest Airports | 0 | - | 4.96 | 237,172 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,863,188 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,154 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 216,472 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,782 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,578 |
| Top World Languages | 0 | - | 4.92 | 829,523 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,122 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,307 |
| Cities by Airports | 0 | - | 4.47 | 104,006 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,771 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,758 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,186 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,569 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,101 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,718 |
| Boundary Waters | 0 | - | 4.92 | 88,754 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,406 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,682 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 72,995 |
| World Currency Quiz | 0 | - | 4.92 | 306,609 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,970 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,671 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,498 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,116 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,928 |
| Landlocked Countries | 0 | - | 4.99 | 425,587 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,517 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,058 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,916 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,951 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,983 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,923 |
| World Capitals Quiz | 0 | - | 5.00 | 5,104,808 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,140 |
| Himalayan Countries | 0 | - | 4.93 | 140,148 |
| Andean Countries | 0 | - | 4.94 | 85,386 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,530 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,923 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,105 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,382 |
| Danube Countries | 0 | - | 4.97 | 72,352 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,553 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,804 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,065 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,561 |
| European Landlocked Countries | 0 | - | 4.99 | 147,584 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,259 |
| Countries with the Most Species | 0 | - | 4.99 | 103,545 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,369 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,767 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,873 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,822 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,561 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,987 |
| Countries in the Alps | 0 | - | 4.87 | 118,742 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,303 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,564 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,818 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,945 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,002 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,922 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,231 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,372 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,834 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,405 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,154 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,853 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,730 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,539 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,765 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,866 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,774 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,592 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,769 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,636 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,592 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,089 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,490 |
| Largest Countries By Category | 0 | - | 4.97 | 158,822 |
| Countries by Countries | 0 | - | 4.96 | 63,621 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,389 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,083 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,172 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,096 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,441 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,976 |
| Demonyms Quiz | 0 | - | 4.15 | 185,527 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,614 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,038 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,558 |
| Longest International Borders | 0 | - | 4.99 | 265,795 |
| Countries with Three Borders | 0 | - | 4.96 | 36,761 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,342 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,487 |
| Demonym of Every Country | 0 | - | 4.90 | 61,457 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,388 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,252 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,102 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,623 |
| Island Countries | 0 | - | 4.99 | 712,482 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,479 |
| Northernmost Countries | 0 | - | 4.99 | 363,895 |
| Countries of South America | 0 | - | 5.00 | 932,358 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,986 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,530 |
| "Land" Countries | 0 | - | 4.98 | 338,340 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,178 |
| Airline Logos | 0 | - | 4.45 | 141,414 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,727 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,095 |
| Countries with Megacities | 0 | - | 4.99 | 267,004 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,801 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,102 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,113 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,214 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,182 |
| Cities by Famous Street | 0 | - | 3.96 | 48,381 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,179 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,272 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,327 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,960 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,181 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,203 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,108 |
| Countries by Capital City | 0 | - | 5.00 | 69,356 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,836 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,206 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,793 |
| Moved Capital Cities | 0 | - | 4.96 | 74,634 |
| Countries by Official Language | 0 | - | 4.95 | 195,960 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,581 |
| Countries in their Native Language | 0 | - | 4.99 | 199,702 |
| Independence from Whom | 0 | - | 4.99 | 213,016 |
| Subdivisions by Country | 0 | - | 4.87 | 50,605 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,405 |
| Megadiverse Countries | 0 | - | 4.96 | 135,268 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,917 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,530 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,618 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,224 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,807 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,836 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,092 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,563 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,999 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,250 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,494 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,365 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,437 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,138 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,569 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,818 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,159 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,303 |
| World Map Quiz | 0 | - | 4.81 | 65,685 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,698 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,214 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,054 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,542 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,522 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,414 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,513 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,708 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,681 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,665 |
| Widest Countries East to West | 0 | - | 4.92 | 130,438 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,593 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,237 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,512 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,053 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,954 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,466 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,493 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,031 |
| Countries that End in N | 0 | - | 4.95 | 171,892 |
| Countries with Five Letters | 0 | - | 4.96 | 283,705 |
| Countries with Six Letters | 0 | - | 4.94 | 214,437 |
| Countries with W | 0 | - | 4.96 | 160,908 |
| Countries with Z | 0 | - | 4.98 | 292,397 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,263 |
| Countries That End in U | 0 | - | 4.95 | 121,176 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,074 |
| Countries that End in O | 0 | - | 4.92 | 160,196 |
| Countries that End in R | 0 | - | 4.87 | 119,173 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,925 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,806 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,131 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,812 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,738 |
| Countries That End in Y | 0 | - | 4.91 | 186,082 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,434 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,258 |
| Countries that End in I | 0 | - | 4.94 | 135,309 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,604 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,044 |
| Countries That End in NIA | 0 | - | 4.92 | 110,040 |
| Countries That End in BIA | 0 | - | 4.93 | 149,566 |
