| Busiest Airports in Europe | 0 | - | 4.91 | 146,864 |
| World's Busiest Airports | 0 | - | 4.96 | 236,428 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,762,895 |
| Countries with the Most Airports | 0 | - | 4.96 | 99,931 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 216,204 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,699 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,775 |
| Top World Languages | 0 | - | 4.92 | 827,809 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,016 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,032 |
| Cities by Airports | 0 | - | 4.47 | 103,832 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,547 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,484 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 122,794 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,520 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,077 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,592 |
| Boundary Waters | 0 | - | 4.92 | 88,697 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,354 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,524 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,859 |
| World Currency Quiz | 0 | - | 4.92 | 305,800 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,961 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,571 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,450 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,042 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,822 |
| Landlocked Countries | 0 | - | 4.99 | 424,219 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,441 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,894 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,840 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,770 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,800 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,856 |
| World Capitals Quiz | 0 | - | 5.00 | 5,097,573 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,514 |
| Himalayan Countries | 0 | - | 4.94 | 139,676 |
| Andean Countries | 0 | - | 4.94 | 85,135 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,317 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,559 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,891 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,171 |
| Danube Countries | 0 | - | 4.97 | 72,248 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,380 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,680 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,803 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,290 |
| European Landlocked Countries | 0 | - | 4.99 | 147,427 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,040 |
| Countries with the Most Species | 0 | - | 4.99 | 103,454 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,174 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,700 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,810 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,723 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,453 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,876 |
| Countries in the Alps | 0 | - | 4.87 | 118,538 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,243 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,216 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,550 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,842 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,852 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,776 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,115 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,963 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,706 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,327 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,041 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,780 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,644 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,422 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,663 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,749 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,446 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,497 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,446 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,447 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,096 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,773 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,410 |
| Largest Countries By Category | 0 | - | 4.97 | 158,600 |
| Countries by Countries | 0 | - | 4.96 | 63,480 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,358 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,952 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,794,684 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,071 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,310 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,942 |
| Demonyms Quiz | 0 | - | 4.15 | 185,463 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,584 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,682 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,464 |
| Longest International Borders | 0 | - | 4.99 | 265,587 |
| Countries with Three Borders | 0 | - | 4.96 | 36,708 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,276 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,409 |
| Demonym of Every Country | 0 | - | 4.90 | 61,246 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,361 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,748 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,239 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,228 |
| Island Countries | 0 | - | 4.99 | 711,955 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,975 |
| Northernmost Countries | 0 | - | 4.99 | 363,296 |
| Countries of South America | 0 | - | 5.00 | 930,530 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,939 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,884,686 |
| "Land" Countries | 0 | - | 4.98 | 337,997 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,933 |
| Airline Logos | 0 | - | 4.45 | 141,266 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,666 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,697 |
| Countries with Megacities | 0 | - | 4.99 | 266,203 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,429 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,850 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,720 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,965 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,168 |
| Cities by Famous Street | 0 | - | 3.96 | 48,371 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,173 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,030 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,954 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,836 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,021 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,973 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,854 |
| Countries by Capital City | 0 | - | 5.00 | 69,135 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,693 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,080 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,658 |
| Moved Capital Cities | 0 | - | 4.96 | 74,551 |
| Countries by Official Language | 0 | - | 4.95 | 195,738 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,239 |
| Countries in their Native Language | 0 | - | 4.99 | 199,503 |
| Independence from Whom | 0 | - | 4.99 | 212,690 |
| Subdivisions by Country | 0 | - | 4.87 | 50,550 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,171 |
| Megadiverse Countries | 0 | - | 4.96 | 135,178 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,715 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,471 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,369 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,175 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,413 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,733 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,853 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,493 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,767 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,218 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,145 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,293 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,360 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,077 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,498 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,615 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,079 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,952 |
| World Map Quiz | 0 | - | 4.81 | 65,411 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,555 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,934 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,905 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,409 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,153 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,262 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,382 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,581 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,611 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,872 |
| Widest Countries East to West | 0 | - | 4.92 | 130,285 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,554 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,075 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,454 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,964 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,838 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,338 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,459 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,860 |
| Countries with Double Letters | 0 | - | 4.96 | 96,759 |
| Countries that End in N | 0 | - | 4.95 | 171,649 |
| Countries with Five Letters | 0 | - | 4.96 | 283,340 |
| Countries with Six Letters | 0 | - | 4.94 | 214,106 |
| Countries with W | 0 | - | 4.96 | 160,713 |
| Countries with Z | 0 | - | 4.98 | 292,073 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,068 |
| Countries That End in U | 0 | - | 4.95 | 121,060 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,867 |
| Countries that End in O | 0 | - | 4.92 | 159,706 |
| Countries that End in R | 0 | - | 4.87 | 119,101 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,847 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,544 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,980 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,694 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,619 |
| Countries That End in Y | 0 | - | 4.91 | 186,016 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,252 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,117 |
| Countries that End in I | 0 | - | 4.94 | 135,240 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,432 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,960 |
| Countries That End in NIA | 0 | - | 4.92 | 109,948 |
| Countries That End in BIA | 0 | - | 4.93 | 149,434 |
