| Busiest Airports in Europe | 0 | - | 4.91 | 146,132 |
| World's Busiest Airports | 0 | - | 4.96 | 233,071 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,392,701 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,704 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,856 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,299 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,689 |
| Top World Languages | 0 | - | 4.92 | 821,162 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,502 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,765 |
| Cities by Airports | 0 | - | 4.49 | 88,687 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,716 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,313 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,075 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,329 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,897 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,988 |
| Boundary Waters | 0 | - | 4.92 | 88,426 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,123 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,002 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,315 |
| World Currency Quiz | 0 | - | 4.91 | 302,492 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,917 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,904 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,111 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,712 |
| Places in their Native Language #2 | 0 | - | 4.79 | 134,145 |
| Landlocked Countries | 0 | - | 4.99 | 419,679 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,033 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,265 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,540 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,816 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,036 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,543 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,363 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,307 |
| Himalayan Countries | 0 | - | 4.95 | 137,743 |
| Andean Countries | 0 | - | 4.95 | 84,086 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,325 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,860 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,958 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,439 |
| Danube Countries | 0 | - | 4.97 | 71,737 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,659 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,137 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,785 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,867 |
| European Landlocked Countries | 0 | - | 4.99 | 146,859 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,235 |
| Countries with the Most Species | 0 | - | 4.99 | 103,000 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,392 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,457 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,618 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,368 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,042 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,438 |
| Countries in the Alps | 0 | - | 4.87 | 117,812 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,050 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,214 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,531 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,467 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,266 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,197 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,778 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,370 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,261 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,020 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,624 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,523 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,369 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,992 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,257 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,274 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,341 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,116 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,622 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,651 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,717 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,434 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,041 |
| Largest Countries By Category | 0 | - | 4.97 | 157,783 |
| Countries by Countries | 0 | - | 4.96 | 62,923 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,180 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,408 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,800 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,890 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,469 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,769 |
| Demonyms Quiz | 0 | - | 4.15 | 185,109 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,414 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,319 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,126 |
| Longest International Borders | 0 | - | 4.99 | 264,797 |
| Countries with Three Borders | 0 | - | 4.96 | 36,496 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,956 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,078 |
| Demonym of Every Country | 0 | - | 4.91 | 59,229 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,296 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,641 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,584,597 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,814 |
| Island Countries | 0 | - | 4.99 | 710,072 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,900 |
| Northernmost Countries | 0 | - | 4.99 | 360,841 |
| Countries of South America | 0 | - | 5.00 | 923,982 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,602 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,128 |
| "Land" Countries | 0 | - | 4.98 | 335,982 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,021 |
| Airline Logos | 0 | - | 4.45 | 140,635 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,367 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,242 |
| Countries with Megacities | 0 | - | 4.99 | 262,337 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,076 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,109 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,383 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,163 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,103 |
| Cities by Famous Street | 0 | - | 3.96 | 48,312 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,120 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,994 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,110 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,314 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,391 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,107 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,835 |
| Countries by Capital City | 0 | - | 5.00 | 68,099 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,086 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,567 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,075 |
| Moved Capital Cities | 0 | - | 4.96 | 74,124 |
| Countries by Official Language | 0 | - | 4.95 | 194,790 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,739 |
| Countries in their Native Language | 0 | - | 4.99 | 198,333 |
| Independence from Whom | 0 | - | 4.99 | 211,522 |
| Subdivisions by Country | 0 | - | 4.86 | 50,320 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,847 |
| Megadiverse Countries | 0 | - | 4.96 | 134,819 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,664 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,219 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,792 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,036 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,804 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,430 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,083 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,890 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,529 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,015 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,165 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,757 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,037 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,827 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,199 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,370 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,480 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,407 |
| World Map Quiz | 0 | - | 4.81 | 64,727 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,113 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,652 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,015 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,744 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,566 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,612 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,762 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,899 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,313 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,351 |
| Widest Countries East to West | 0 | - | 4.92 | 129,440 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,405 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,055 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,028 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,578 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,315 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,626 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,274 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,739 |
| Countries with Double Letters | 0 | - | 4.97 | 95,235 |
| Countries that End in N | 0 | - | 4.95 | 170,233 |
| Countries with Five Letters | 0 | - | 4.96 | 280,943 |
| Countries with Six Letters | 0 | - | 4.94 | 212,671 |
| Countries with W | 0 | - | 4.97 | 159,619 |
| Countries with Z | 0 | - | 4.98 | 290,342 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,867 |
| Countries That End in U | 0 | - | 4.95 | 120,464 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,887 |
| Countries that End in O | 0 | - | 4.92 | 159,248 |
| Countries that End in R | 0 | - | 4.87 | 118,764 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,542 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,473 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,230 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,152 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,756 |
| Countries That End in Y | 0 | - | 4.91 | 185,681 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,403 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,515 |
| Countries that End in I | 0 | - | 4.94 | 134,909 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,472 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,617 |
| Countries That End in NIA | 0 | - | 4.92 | 109,566 |
| Countries That End in BIA | 0 | - | 4.93 | 148,913 |
