| Busiest Airports in Europe | 0 | - | 4.91 | 146,133 |
| World's Busiest Airports | 0 | - | 4.96 | 233,078 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,393,976 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,711 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,861 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,300 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,720 |
| Top World Languages | 0 | - | 4.92 | 821,190 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,503 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,769 |
| Cities by Airports | 0 | - | 4.49 | 88,689 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,720 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,317 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,081 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,330 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,898 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,990 |
| Boundary Waters | 0 | - | 4.92 | 88,427 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,124 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,003 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,318 |
| World Currency Quiz | 0 | - | 4.91 | 302,501 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,917 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,907 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,113 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,712 |
| Places in their Native Language #2 | 0 | - | 4.79 | 134,151 |
| Landlocked Countries | 0 | - | 4.99 | 419,697 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,035 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,267 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,543 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,819 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,040 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,544 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,467 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,311 |
| Himalayan Countries | 0 | - | 4.95 | 137,748 |
| Andean Countries | 0 | - | 4.95 | 84,092 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,328 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,863 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,961 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,440 |
| Danube Countries | 0 | - | 4.97 | 71,737 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,663 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,138 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,791 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,874 |
| European Landlocked Countries | 0 | - | 4.99 | 146,862 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,236 |
| Countries with the Most Species | 0 | - | 4.99 | 103,001 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,394 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,458 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,618 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,369 |
| 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 | 117,816 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,051 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,215 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,532 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,468 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,278 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,204 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,780 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,372 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,261 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,022 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,625 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,371 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,992 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,259 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,276 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,347 |
| 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 | 45,659 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,729 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,438 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,042 |
| 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 | 88,409 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,927 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,891 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,474 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,771 |
| Demonyms Quiz | 0 | - | 4.15 | 185,110 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,415 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,328 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,128 |
| Longest International Borders | 0 | - | 4.99 | 264,807 |
| Countries with Three Borders | 0 | - | 4.96 | 36,496 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,957 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,078 |
| Demonym of Every Country | 0 | - | 4.91 | 59,232 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,297 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,656 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,584,636 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,816 |
| Island Countries | 0 | - | 4.99 | 710,081 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,914 |
| Northernmost Countries | 0 | - | 4.99 | 360,851 |
| Countries of South America | 0 | - | 5.00 | 923,999 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,632 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,186 |
| "Land" Countries | 0 | - | 4.98 | 335,985 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,023 |
| Airline Logos | 0 | - | 4.45 | 140,637 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,367 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,247 |
| Countries with Megacities | 0 | - | 4.99 | 262,369 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,080 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,111 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,386 |
| 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 | 135,996 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,113 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,315 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,393 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,109 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,840 |
| Countries by Capital City | 0 | - | 5.00 | 68,104 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,087 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,569 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,075 |
| Moved Capital Cities | 0 | - | 4.96 | 74,125 |
| Countries by Official Language | 0 | - | 4.95 | 194,793 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,741 |
| Countries in their Native Language | 0 | - | 4.99 | 198,335 |
| Independence from Whom | 0 | - | 4.99 | 211,531 |
| Subdivisions by Country | 0 | - | 4.86 | 50,321 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,848 |
| Megadiverse Countries | 0 | - | 4.96 | 134,821 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,665 |
| 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 | 162,806 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,431 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,085 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,890 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,530 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,016 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,170 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,761 |
| 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 | 71,371 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,528 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,412 |
| World Map Quiz | 0 | - | 4.81 | 64,728 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,113 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,654 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,018 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,745 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,573 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,614 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,763 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,901 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,314 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,352 |
| 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 | 186,056 |
| 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 | 94,579 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,316 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,629 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,274 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,741 |
| Countries with Double Letters | 0 | - | 4.97 | 95,237 |
| Countries that End in N | 0 | - | 4.95 | 170,239 |
| Countries with Five Letters | 0 | - | 4.96 | 280,965 |
| Countries with Six Letters | 0 | - | 4.94 | 212,679 |
| Countries with W | 0 | - | 4.97 | 159,629 |
| Countries with Z | 0 | - | 4.98 | 290,361 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,870 |
| Countries That End in U | 0 | - | 4.95 | 120,465 |
| 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 | 155,543 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,476 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,234 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,153 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,757 |
| Countries That End in Y | 0 | - | 4.91 | 185,681 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,406 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,518 |
| Countries that End in I | 0 | - | 4.94 | 134,909 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,503 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,618 |
| Countries That End in NIA | 0 | - | 4.92 | 109,567 |
| Countries That End in BIA | 0 | - | 4.93 | 148,918 |
