| Busiest Airports in Europe | 0 | - | 4.91 | 146,055 |
| World's Busiest Airports | 0 | - | 4.96 | 232,593 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,342,261 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,605 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,701 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,233 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,166 |
| Top World Languages | 0 | - | 4.92 | 820,360 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,452 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,587 |
| Places in their Native Language #2 | 0 | - | 4.79 | 133,920 |
| Cities by Airports | 0 | - | 4.49 | 88,650 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,601 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,179 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,875 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,298 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,880 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,915 |
| Boundary Waters | 0 | - | 4.92 | 88,383 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,088 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,925 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,233 |
| World Currency Quiz | 0 | - | 4.91 | 302,054 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,907 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,854 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,084 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,665 |
| Landlocked Countries | 0 | - | 4.99 | 419,074 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,000 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,191 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,505 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,689 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,923 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,493 |
| World Capitals Quiz | 0 | - | 5.00 | 5,064,355 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,038 |
| Himalayan Countries | 0 | - | 4.94 | 137,476 |
| Andean Countries | 0 | - | 4.95 | 83,964 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,241 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,694 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,852 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,366 |
| Danube Countries | 0 | - | 4.97 | 71,675 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,567 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,067 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,674 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,750 |
| European Landlocked Countries | 0 | - | 4.99 | 146,790 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,151 |
| Countries with the Most Species | 0 | - | 4.99 | 102,923 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,285 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,436 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,592 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,314 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,999 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,373 |
| Countries in the Alps | 0 | - | 4.87 | 117,706 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,014 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,147 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,386 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,428 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,003 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,111 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,671 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,296 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,198 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,974 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,560 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,489 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,343 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,938 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,196 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,217 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,211 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,071 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,579 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,536 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,441 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,254 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,009 |
| Largest Countries By Category | 0 | - | 4.97 | 157,659 |
| Countries by Countries | 0 | - | 4.96 | 62,848 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,166 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,334 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,757,485 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,859 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,391 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,740 |
| Demonyms Quiz | 0 | - | 4.15 | 185,085 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,391 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,105 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,083 |
| Longest International Borders | 0 | - | 4.99 | 264,685 |
| Countries with Three Borders | 0 | - | 4.96 | 36,459 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,921 |
| Largest Cities for each Latitude Degree | 0 | - | 5.00 | 48,020 |
| Demonym of Every Country | 0 | - | 4.91 | 59,159 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,287 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,095 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,583,114 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,636 |
| Island Countries | 0 | - | 4.99 | 709,810 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,163 |
| Northernmost Countries | 0 | - | 4.99 | 360,529 |
| Countries of South America | 0 | - | 5.00 | 923,054 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,216 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,691 |
| "Land" Countries | 0 | - | 4.98 | 335,821 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,895 |
| Airline Logos | 0 | - | 4.45 | 140,559 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,348 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,060 |
| Countries with Megacities | 0 | - | 4.99 | 260,608 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,923 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,016 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,199 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,023 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,094 |
| Cities by Famous Street | 0 | - | 3.96 | 48,307 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,115 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,887 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,984 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,259 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,292 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,996 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,671 |
| Countries by Capital City | 0 | - | 5.00 | 67,950 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,988 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,481 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,989 |
| Moved Capital Cities | 0 | - | 4.96 | 74,074 |
| Countries by Official Language | 0 | - | 4.95 | 194,655 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,560 |
| Countries in their Native Language | 0 | - | 4.99 | 198,208 |
| Independence from Whom | 0 | - | 4.99 | 211,342 |
| Subdivisions by Country | 0 | - | 4.86 | 50,290 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,729 |
| Megadiverse Countries | 0 | - | 4.96 | 134,776 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,559 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,188 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,760 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,019 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,721 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,388 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,992 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,847 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,491 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,996 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,015 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,724 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,998 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,785 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,160 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,329 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,940 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,224 |
| World Map Quiz | 0 | - | 4.81 | 64,543 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,042 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,527 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,936 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,652 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,355 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,525 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,678 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,838 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,268 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,295 |
| Widest Countries East to West | 0 | - | 4.92 | 129,385 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,386 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,968 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,996 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,516 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,229 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,561 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,238 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,729 |
| Countries with Double Letters | 0 | - | 4.97 | 95,114 |
| Countries that End in N | 0 | - | 4.95 | 170,028 |
| Countries with Five Letters | 0 | - | 4.96 | 280,336 |
| Countries with Six Letters | 0 | - | 4.94 | 212,509 |
| Countries with W | 0 | - | 4.97 | 159,531 |
| Countries with Z | 0 | - | 4.98 | 289,831 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,762 |
| Countries That End in U | 0 | - | 4.95 | 120,420 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,769 |
| Countries that End in O | 0 | - | 4.92 | 159,203 |
| Countries that End in R | 0 | - | 4.87 | 118,738 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,517 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,352 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,122 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,093 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,676 |
| Countries That End in Y | 0 | - | 4.90 | 185,651 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,240 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,442 |
| Countries that End in I | 0 | - | 4.94 | 134,876 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,097 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,583 |
| Countries That End in NIA | 0 | - | 4.92 | 109,522 |
| Countries That End in BIA | 0 | - | 4.93 | 148,851 |
