| Busiest Airports in Europe | 0 | - | 4.91 | 146,262 |
| World's Busiest Airports | 0 | - | 4.96 | 233,851 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,480,953 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,920 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 215,103 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,379 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,426 |
| Top World Languages | 0 | - | 4.92 | 822,581 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,992 |
| Cities by Airports | 0 | - | 4.49 | 88,741 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,887 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,563 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,428 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,374 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,920 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,105 |
| Boundary Waters | 0 | - | 4.92 | 88,484 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,180 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,127 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,439 |
| World Currency Quiz | 0 | - | 4.92 | 303,255 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,923 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,991 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,144 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,786 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,332 |
| Landlocked Countries | 0 | - | 4.99 | 420,794 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,110 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,404 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,624 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,207 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,219 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,587 |
| World Capitals Quiz | 0 | - | 5.00 | 5,075,633 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,869 |
| Himalayan Countries | 0 | - | 4.95 | 138,200 |
| Andean Countries | 0 | - | 4.95 | 84,319 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,543 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,425 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,169 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,601 |
| Danube Countries | 0 | - | 4.97 | 71,861 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,835 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,264 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,030 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,487 |
| European Landlocked Countries | 0 | - | 4.99 | 147,002 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,410 |
| Countries with the Most Species | 0 | - | 4.99 | 103,124 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,568 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,521 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,457 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,134 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,526 |
| Countries in the Alps | 0 | - | 4.87 | 117,997 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,078 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,903 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,780 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,558 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,473 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,343 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,847 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,496 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,364 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,095 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,720 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,573 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,429 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,091 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,366 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,390 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,599 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,190 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,714 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,854 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,325 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,746 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,127 |
| Largest Countries By Category | 0 | - | 4.97 | 157,974 |
| Countries by Countries | 0 | - | 4.96 | 63,048 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,228 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,541 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,389 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,929 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,587 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,805 |
| Demonyms Quiz | 0 | - | 4.15 | 185,218 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,450 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,651 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,209 |
| Longest International Borders | 0 | - | 4.99 | 264,975 |
| Countries with Three Borders | 0 | - | 4.96 | 36,544 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,030 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,141 |
| Demonym of Every Country | 0 | - | 4.91 | 60,307 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,317 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,504 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,587,077 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,128 |
| Island Countries | 0 | - | 4.99 | 710,538 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,229 |
| Northernmost Countries | 0 | - | 4.99 | 361,361 |
| Countries of South America | 0 | - | 5.00 | 925,433 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,483 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,726 |
| "Land" Countries | 0 | - | 4.98 | 336,819 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,231 |
| Airline Logos | 0 | - | 4.45 | 140,799 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,403 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,390 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,555 |
| Countries with Megacities | 0 | - | 4.99 | 263,636 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,390 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,295 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,668 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,333 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,124 |
| Cities by Famous Street | 0 | - | 3.96 | 48,324 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,135 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,189 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,286 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,434 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,532 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,269 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,056 |
| Countries by Capital City | 0 | - | 5.00 | 68,331 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,195 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,670 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,234 |
| Moved Capital Cities | 0 | - | 4.96 | 74,226 |
| Countries by Official Language | 0 | - | 4.95 | 194,991 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,020 |
| Countries in their Native Language | 0 | - | 4.99 | 198,498 |
| Independence from Whom | 0 | - | 4.99 | 211,772 |
| Subdivisions by Country | 0 | - | 4.86 | 50,377 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,069 |
| Megadiverse Countries | 0 | - | 4.96 | 134,905 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,841 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,277 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,857 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,066 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,948 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,498 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,262 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,953 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,580 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,047 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,400 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,802 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,115 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,888 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,261 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,426 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,442 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,785 |
| World Map Quiz | 0 | - | 4.81 | 64,907 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,217 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,833 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,125 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,850 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,846 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,755 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,889 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,193 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,369 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,466 |
| Widest Countries East to West | 0 | - | 4.92 | 129,533 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,420 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,213 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,073 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,654 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,438 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,725 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,323 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,771 |
| Countries with Double Letters | 0 | - | 4.97 | 95,762 |
| Countries that End in N | 0 | - | 4.95 | 170,716 |
| Countries with Five Letters | 0 | - | 4.96 | 281,775 |
| Countries with Six Letters | 0 | - | 4.94 | 213,136 |
| Countries with W | 0 | - | 4.97 | 160,018 |
| Countries with Z | 0 | - | 4.98 | 290,976 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,367 |
| Countries That End in U | 0 | - | 4.95 | 120,665 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,163 |
| Countries that End in O | 0 | - | 4.92 | 159,386 |
| Countries that End in R | 0 | - | 4.87 | 118,863 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,634 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,762 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,424 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,293 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,922 |
| Countries That End in Y | 0 | - | 4.91 | 185,782 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,611 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,675 |
| Countries that End in I | 0 | - | 4.94 | 134,995 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,797 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,715 |
| Countries That End in NIA | 0 | - | 4.92 | 109,659 |
| Countries That End in BIA | 0 | - | 4.93 | 149,043 |
