| Europe's Busiest Airports | 0 | - | 4.92 | 133,821 |
| World's Busiest Airports | 0 | - | 4.94 | 190,074 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,357,648 |
| Countries with the Most Airports | 0 | - | 4.96 | 81,488 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 358,975 |
| Top World Languages | 0 | - | 4.92 | 715,852 |
| Busiest Airports in the United States | 0 | - | 4.57 | 127,511 |
| Places in their Native Language #1 | 0 | - | 4.86 | 212,018 |
| Places in their Native Language #2 | 0 | - | 4.88 | 113,826 |
| Cities by Airports | 0 | - | 4.51 | 81,594 |
| Airport Codes Quiz #1 | 0 | - | 4.79 | 191,145 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 105,076 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.96 | 104,549 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 94,115 |
| Busiest Air Routes in the World | 0 | - | 4.52 | 35,420 |
| Airports Named for People #1 | 0 | - | 4.45 | 53,409 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 83,487 |
| Boundary Waters | 0 | - | 4.93 | 81,552 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 75,733 |
| Countries by Airline Passengers | 0 | - | 4.91 | 49,439 |
| World Currency Quiz | 0 | - | 4.92 | 249,154 |
| Tourist Route of Europe | 0 | - | 4.22 | 41,838 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,559 |
| Lonely Planet Top 200 Cities | 0 | - | 4.64 | 210,590 |
| Cities with the Most International Tourists | 0 | - | 4.46 | 50,211 |
| Largest Countries with Little Tourism | 0 | - | 4.72 | 55,245 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 329,579 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 95,794 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 77,174 |
| World Geography on a Map #1 | 0 | - | 4.93 | 67,840 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,588 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 110,640 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.34 | 92,923 |
| World Capitals Quiz | 0 | - | 5.00 | 4,535,039 |
| Members of the Arab League | 0 | - | 4.85 | 64,451 |
| Sahara Desert Countries | 0 | - | 4.97 | 128,808 |
| Himalayan Countries | 0 | - | 4.95 | 106,741 |
| Andean Countries | 0 | - | 4.91 | 59,364 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,417 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,209 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,579 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,498 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,813 |
| Danube Countries | 0 | - | 4.96 | 56,970 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,986 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,096 |
| Countries with the Best Passports | 0 | - | 4.87 | 71,990 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,919 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,189 |
| European Landlocked Countries | 0 | - | 4.99 | 136,320 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,257 |
| Countries with the Most Species | 0 | - | 4.99 | 89,691 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,838 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,866 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,158 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,686 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,654 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,921 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,525 |
| Countries in the Alps | 0 | - | 4.84 | 103,276 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.25 | 77,086 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,901 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,321 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,939 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,994 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,460 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,969 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,107 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,481 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,516 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,060 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,825 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,797 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,850 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,171 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,335 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,901 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,330 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,658 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,723 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,296 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,076 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,568 |
| Largest Countries By Category | 0 | - | 4.97 | 145,712 |
| Countries by Countries | 0 | - | 4.96 | 55,121 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,122,544 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,915 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,192,234 |
| U.S. National Parks Map Quiz | 0 | - | 4.51 | 51,917 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 135,296 |
| Western Europe Map Quiz | 0 | - | 4.86 | 89,356 |
| Demonyms Quiz | 0 | - | 4.12 | 179,313 |
| Who Controls It? #1 | 0 | - | 4.84 | 45,684 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 182,231 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,500 |
| Longest International Borders | 0 | - | 4.99 | 235,232 |
| Countries with Three Borders | 0 | - | 4.96 | 31,784 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,393 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 40,738 |
| Demonym of Every Country | 0 | - | 4.90 | 50,202 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,395,682 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 342,980 |
| Island Countries Quiz | 0 | - | 4.99 | 664,607 |
| Biggest Countries by Area | 0 | - | 5.00 | 940,123 |
| Northernmost Countries | 0 | - | 4.99 | 329,250 |
| Countries of South America | 0 | - | 5.00 | 801,979 |
| Countries of Oceania | 0 | - | 5.00 | 903,867 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,592,117 |
| Airline Logos | 0 | - | 4.43 | 128,870 |
| Analogies of Countries #1 | 0 | - | 4.87 | 61,880 |
| Five Letter Geography #4 | 0 | - | 4.83 | 67,239 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,581 |
| Countries with Megacities | 0 | - | 4.99 | 199,679 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,361 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,972 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 96,962 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,937 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,496 |
| Cities by Tourist Attraction #1 | 0 | - | 3.64 | 80,105 |
| Cities by Famous Street | 0 | - | 3.99 | 47,450 |
| Global Cities on a World Map | 0 | - | 4.92 | 92,038 |
| Northernmost Capital Cities | 0 | - | 4.98 | 95,043 |
| Most Remote Capital Cities | 0 | - | 4.90 | 44,283 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,031 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 92,096 |
| Same Letter Country and Capital | 0 | - | 4.99 | 128,774 |
| Countries by Capital City | 0 | - | 4.99 | 50,432 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 66,553 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 105,643 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 73,697 |
| Moved Capital Cities | 0 | - | 4.96 | 67,458 |
| Countries by Official Language | 0 | - | 4.96 | 174,121 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,177 |
| Countries in their Native Language | 0 | - | 4.98 | 179,359 |
| Independence from Whom | 0 | - | 4.99 | 187,515 |
| Subdivisions by Country | 0 | - | 4.82 | 46,681 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,553 |
| Megadiverse Countries | 0 | - | 4.96 | 126,149 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,462 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,114 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,631 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,326 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,491 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,791 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,665 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,382 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,669 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,456 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,930 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,567 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,140 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,008 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,631 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,137 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,284 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,865 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,084 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,669 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,025 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 72,387 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,462 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,529 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,025 |
| Widest Countries East to West | 0 | - | 4.93 | 119,988 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,991 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,787 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,976 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,116 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,980 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,726 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,621 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,246 |
| Countries with Double Letters | 0 | - | 4.96 | 69,940 |
| Countries that End in N | 0 | - | 4.94 | 134,171 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,519 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 188,908 |
| Countries with W | 0 | - | 4.96 | 124,159 |
| Countries with Z | 0 | - | 4.98 | 246,175 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,363 |
| Countries That End in U | 0 | - | 4.95 | 108,295 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,777 |
| Countries that End in O | 0 | - | 4.92 | 147,526 |
| Countries that End in R | 0 | - | 4.84 | 96,837 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,643 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,664 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 156,889 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,099 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,036 |
| Countries That End in Y | 0 | - | 4.90 | 161,989 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,050 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,530 |
| Countries that End in I | 0 | - | 4.92 | 114,842 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,587 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,946 |
| Countries That End in NIA | 0 | - | 4.93 | 101,348 |
| Countries That End in BIA | 0 | - | 4.91 | 126,721 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,247 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,375 |
| Countries That End in RIA | 0 | - | 4.90 | 101,457 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,092 |
