| Busiest Airports in Europe | 0 | - | 4.91 | 146,304 |
| World's Busiest Airports | 0 | - | 4.96 | 234,048 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,502,299 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,977 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 215,162 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,408 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,604 |
| Top World Languages | 0 | - | 4.92 | 822,900 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,635 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,052 |
| Cities by Airports | 0 | - | 4.49 | 88,758 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,934 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,617 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,527 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,381 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,930 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,132 |
| Boundary Waters | 0 | - | 4.92 | 88,502 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,193 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,157 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,478 |
| World Currency Quiz | 0 | - | 4.92 | 303,446 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,928 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,020 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,159 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,809 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,377 |
| Landlocked Countries | 0 | - | 4.99 | 421,024 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,129 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,450 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,646 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,245 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,262 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,608 |
| World Capitals Quiz | 0 | - | 5.00 | 5,077,315 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,994 |
| Himalayan Countries | 0 | - | 4.95 | 138,301 |
| Andean Countries | 0 | - | 4.93 | 84,372 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,591 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,509 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,223 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,625 |
| Danube Countries | 0 | - | 4.97 | 71,898 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,874 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,294 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,090 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,562 |
| European Landlocked Countries | 0 | - | 4.99 | 147,029 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,460 |
| Countries with the Most Species | 0 | - | 4.99 | 103,148 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,608 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,534 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,674 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,468 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,150 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,555 |
| Countries in the Alps | 0 | - | 4.87 | 118,040 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,089 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,309 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,833 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,579 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,504 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,380 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,872 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,538 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,398 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,111 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,744 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,585 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,444 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,118 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,384 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,417 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,663 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,213 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,726 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,886 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,446 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,818 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,141 |
| Largest Countries By Category | 0 | - | 4.97 | 158,016 |
| Countries by Countries | 0 | - | 4.96 | 63,081 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,237 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,564 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,771,304 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,938 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,631 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,821 |
| Demonyms Quiz | 0 | - | 4.15 | 185,235 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,461 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,729 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,231 |
| Longest International Borders | 0 | - | 4.99 | 265,015 |
| Countries with Three Borders | 0 | - | 4.96 | 36,559 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,045 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,158 |
| Demonym of Every Country | 0 | - | 4.92 | 60,400 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,321 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,731 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,587,886 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,223 |
| Island Countries | 0 | - | 4.99 | 710,652 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,567 |
| Northernmost Countries | 0 | - | 4.99 | 361,506 |
| Countries of South America | 0 | - | 5.00 | 925,827 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,047 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,731 |
| "Land" Countries | 0 | - | 4.98 | 336,985 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,285 |
| Airline Logos | 0 | - | 4.45 | 140,832 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,413 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,624 |
| Countries with Megacities | 0 | - | 4.99 | 263,865 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,473 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,328 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,750 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,376 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,127 |
| Cities by Famous Street | 0 | - | 3.96 | 48,329 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,139 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,253 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,340 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,463 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,561 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,313 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,111 |
| Countries by Capital City | 0 | - | 5.00 | 68,403 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,229 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,707 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,272 |
| Moved Capital Cities | 0 | - | 4.96 | 74,253 |
| Countries by Official Language | 0 | - | 4.95 | 195,042 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,106 |
| Countries in their Native Language | 0 | - | 4.99 | 198,546 |
| Independence from Whom | 0 | - | 4.99 | 211,856 |
| Subdivisions by Country | 0 | - | 4.86 | 50,385 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,544 |
| Megadiverse Countries | 0 | - | 4.96 | 134,926 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,905 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,287 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,869 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,074 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,988 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,527 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,327 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,971 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,593 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,051 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,462 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,818 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,129 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,907 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,292 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,438 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,093 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,881 |
| World Map Quiz | 0 | - | 4.81 | 64,950 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,250 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,886 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,158 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,880 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,927 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,795 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,919 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,213 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,388 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,496 |
| Widest Countries East to West | 0 | - | 4.92 | 129,561 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,425 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,251 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,086 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,685 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,473 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,758 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,332 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,779 |
| Countries with Double Letters | 0 | - | 4.96 | 95,927 |
| Countries that End in N | 0 | - | 4.95 | 170,837 |
| Countries with Five Letters | 0 | - | 4.96 | 281,949 |
| Countries with Six Letters | 0 | - | 4.94 | 213,260 |
| Countries with W | 0 | - | 4.97 | 160,112 |
| Countries with Z | 0 | - | 4.98 | 291,125 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,472 |
| Countries That End in U | 0 | - | 4.95 | 120,728 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,239 |
| Countries that End in O | 0 | - | 4.92 | 159,430 |
| Countries that End in R | 0 | - | 4.87 | 118,897 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,665 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,845 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,536 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,370 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,262 |
| Countries That End in Y | 0 | - | 4.91 | 185,804 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,726 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,721 |
| Countries that End in I | 0 | - | 4.94 | 135,026 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,897 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,748 |
| Countries That End in NIA | 0 | - | 4.92 | 109,697 |
| Countries That End in BIA | 0 | - | 4.93 | 149,090 |
