| Busiest Airports in Europe | 0 | - | 4.91 | 146,356 |
| World's Busiest Airports | 0 | - | 4.96 | 234,311 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,531,244 |
| Countries with the Most Airports | 0 | - | 4.96 | 99,054 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 215,262 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,444 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,813 |
| Top World Languages | 0 | - | 4.92 | 823,389 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,670 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,140 |
| Cities by Airports | 0 | - | 4.49 | 88,782 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,006 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,701 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,678 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,397 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,944 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,172 |
| Boundary Waters | 0 | - | 4.92 | 88,520 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,217 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,194 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,517 |
| World Currency Quiz | 0 | - | 4.92 | 303,709 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,931 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,043 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,175 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,837 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,419 |
| Landlocked Countries | 0 | - | 4.99 | 421,332 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,153 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,491 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,671 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,309 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,313 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,635 |
| World Capitals Quiz | 0 | - | 5.00 | 5,079,469 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,132 |
| Himalayan Countries | 0 | - | 4.95 | 138,433 |
| Andean Countries | 0 | - | 4.93 | 84,439 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,649 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,604 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,278 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,678 |
| Danube Countries | 0 | - | 4.97 | 71,931 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,920 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,350 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,162 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,624 |
| European Landlocked Countries | 0 | - | 4.99 | 147,060 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,509 |
| Countries with the Most Species | 0 | - | 4.99 | 103,167 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,666 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,547 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,690 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,495 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,175 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,586 |
| Countries in the Alps | 0 | - | 4.87 | 118,095 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,104 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,638 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,914 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,602 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,532 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,418 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,894 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,582 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,440 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,138 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,782 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,613 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,470 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,156 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,412 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,448 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,735 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,244 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 61,799 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,955 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,604 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,910 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,167 |
| Largest Countries By Category | 0 | - | 4.97 | 158,090 |
| Countries by Countries | 0 | - | 4.96 | 63,121 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,253 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,603 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,773,882 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,943 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,657 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,831 |
| Demonyms Quiz | 0 | - | 4.15 | 185,260 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,469 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,828 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,250 |
| Longest International Borders | 0 | - | 4.99 | 265,087 |
| Countries with Three Borders | 0 | - | 4.96 | 36,573 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,080 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,177 |
| Demonym of Every Country | 0 | - | 4.91 | 60,499 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,323 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,053 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,588,818 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,326 |
| Island Countries | 0 | - | 4.99 | 710,795 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,015 |
| Northernmost Countries | 0 | - | 4.99 | 361,665 |
| Countries of South America | 0 | - | 5.00 | 926,356 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,628 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,875,121 |
| "Land" Countries | 0 | - | 4.98 | 337,129 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,346 |
| Airline Logos | 0 | - | 4.45 | 140,882 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,431 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,728 |
| Countries with Megacities | 0 | - | 4.99 | 264,156 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,573 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,384 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,833 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,443 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,130 |
| Cities by Famous Street | 0 | - | 3.96 | 48,332 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,142 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,337 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,421 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,491 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,601 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,360 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,178 |
| Countries by Capital City | 0 | - | 5.00 | 68,480 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,273 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,746 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,316 |
| Moved Capital Cities | 0 | - | 4.96 | 74,284 |
| Countries by Official Language | 0 | - | 4.95 | 195,119 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,188 |
| Countries in their Native Language | 0 | - | 4.99 | 198,905 |
| Independence from Whom | 0 | - | 4.99 | 211,937 |
| Subdivisions by Country | 0 | - | 4.86 | 50,398 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,616 |
| Megadiverse Countries | 0 | - | 4.96 | 134,957 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,964 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,312 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,938 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,086 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,028 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,557 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,369 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,991 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,608 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,065 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,548 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,839 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,160 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,926 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,311 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,461 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,034 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,996 |
| World Map Quiz | 0 | - | 4.81 | 65,004 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,284 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,965 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,201 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,922 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,032 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,818 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,950 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,249 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,405 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,521 |
| Widest Countries East to West | 0 | - | 4.92 | 129,584 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,436 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,311 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,097 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,721 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,518 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,792 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,345 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,786 |
| Countries with Double Letters | 0 | - | 4.96 | 96,061 |
| Countries that End in N | 0 | - | 4.95 | 170,946 |
| Countries with Five Letters | 0 | - | 4.96 | 282,132 |
| Countries with Six Letters | 0 | - | 4.94 | 213,375 |
| Countries with W | 0 | - | 4.97 | 160,194 |
| Countries with Z | 0 | - | 4.98 | 291,253 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,554 |
| Countries That End in U | 0 | - | 4.95 | 120,771 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,323 |
| Countries that End in O | 0 | - | 4.92 | 159,460 |
| Countries that End in R | 0 | - | 4.87 | 118,924 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,683 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,930 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,598 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,402 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,319 |
| Countries That End in Y | 0 | - | 4.91 | 185,830 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,798 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,762 |
| Countries that End in I | 0 | - | 4.94 | 135,045 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,975 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,768 |
| Countries That End in NIA | 0 | - | 4.92 | 109,719 |
| Countries That End in BIA | 0 | - | 4.93 | 149,126 |
