| Busiest Airports in Europe | 0 | - | 4.91 | 147,078 |
| World's Busiest Airports | 0 | - | 4.96 | 237,448 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,900,146 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,244 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 216,683 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,820 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,845 |
| Top World Languages | 0 | - | 4.92 | 830,150 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,165 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,413 |
| Cities by Airports | 0 | - | 4.47 | 104,061 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,862 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,887 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,335 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,584 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,121 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,809 |
| Boundary Waters | 0 | - | 4.92 | 88,782 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,424 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,727 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,041 |
| World Currency Quiz | 0 | - | 4.92 | 306,934 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,978 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,715 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,510 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,143 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,987 |
| Landlocked Countries | 0 | - | 4.99 | 426,173 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,567 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,124 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,936 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,028 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,049 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,951 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,866 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,411 |
| Himalayan Countries | 0 | - | 4.93 | 140,369 |
| Andean Countries | 0 | - | 4.94 | 85,533 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,683 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,107 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,256 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,488 |
| Danube Countries | 0 | - | 4.97 | 72,437 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,636 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,869 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,193 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,665 |
| European Landlocked Countries | 0 | - | 4.99 | 147,640 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,347 |
| Countries with the Most Species | 0 | - | 4.99 | 103,587 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,447 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,785 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,897 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,858 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,595 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,040 |
| Countries in the Alps | 0 | - | 4.87 | 118,822 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,316 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,705 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,933 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,985 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,048 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,991 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,285 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,436 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,888 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,445 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,206 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,898 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,757 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,578 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,822 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,914 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,913 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,636 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,468 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,712 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,844 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,216 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,532 |
| Largest Countries By Category | 0 | - | 4.97 | 158,901 |
| Countries by Countries | 0 | - | 4.96 | 63,668 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,413 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,128 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,252 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,110 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,490 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,991 |
| Demonyms Quiz | 0 | - | 4.15 | 185,554 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,622 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,166 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,588 |
| Longest International Borders | 0 | - | 4.99 | 265,850 |
| Countries with Three Borders | 0 | - | 4.96 | 36,786 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,370 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,508 |
| Demonym of Every Country | 0 | - | 4.90 | 61,512 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,395 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,686 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,167 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,765 |
| Island Countries | 0 | - | 4.99 | 712,662 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,058 |
| Northernmost Countries | 0 | - | 4.99 | 364,155 |
| Countries of South America | 0 | - | 5.00 | 933,057 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,892 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,214 |
| "Land" Countries | 0 | - | 4.98 | 338,456 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,251 |
| Airline Logos | 0 | - | 4.45 | 141,467 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,738 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,241 |
| Countries with Megacities | 0 | - | 4.99 | 267,295 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,921 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,181 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,245 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,297 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,186 |
| Cities by Famous Street | 0 | - | 3.96 | 48,382 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,185 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,353 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,396 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,997 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,240 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,268 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,193 |
| Countries by Capital City | 0 | - | 5.00 | 69,449 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,890 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,259 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,839 |
| Moved Capital Cities | 0 | - | 4.96 | 74,671 |
| Countries by Official Language | 0 | - | 4.95 | 196,054 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,698 |
| Countries in their Native Language | 0 | - | 4.99 | 199,788 |
| Independence from Whom | 0 | - | 4.99 | 213,141 |
| Subdivisions by Country | 0 | - | 4.87 | 50,630 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,499 |
| Megadiverse Countries | 0 | - | 4.96 | 135,297 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,987 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,548 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,719 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,233 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,309 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,869 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,146 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,578 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,091 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,263 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,588 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,397 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,454 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,160 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,596 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,893 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,569 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,424 |
| World Map Quiz | 0 | - | 4.81 | 65,780 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,737 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,317 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,122 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,597 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,651 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,470 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,571 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,771 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,714 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,783 |
| Widest Countries East to West | 0 | - | 4.92 | 130,673 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,606 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,282 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,526 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,080 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,010 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,504 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,511 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,899 |
| Countries with Double Letters | 0 | - | 4.96 | 97,145 |
| Countries that End in N | 0 | - | 4.95 | 172,018 |
| Countries with Five Letters | 0 | - | 4.96 | 284,030 |
| Countries with Six Letters | 0 | - | 4.94 | 214,559 |
| Countries with W | 0 | - | 4.96 | 161,005 |
| Countries with Z | 0 | - | 4.98 | 292,533 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,336 |
| Countries That End in U | 0 | - | 4.95 | 121,217 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,160 |
| Countries that End in O | 0 | - | 4.92 | 160,244 |
| Countries that End in R | 0 | - | 4.87 | 119,200 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,962 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,911 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,191 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,860 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,782 |
| Countries That End in Y | 0 | - | 4.91 | 186,103 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,499 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,304 |
| Countries that End in I | 0 | - | 4.94 | 135,339 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,665 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,075 |
| Countries That End in NIA | 0 | - | 4.92 | 110,087 |
| Countries That End in BIA | 0 | - | 4.93 | 149,607 |
