| Busiest Airports in Europe | 0 | - | 4.91 | 144,895 |
| World's Busiest Airports | 0 | - | 4.94 | 210,403 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,911,290 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,104 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,050 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,543 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,794 |
| Top World Languages | 0 | - | 4.92 | 813,025 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,765 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,436 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,963 |
| Cities by Airports | 0 | - | 4.49 | 87,791 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,183 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,259 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,850 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 118,968 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,954 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,688 |
| Boundary Waters | 0 | - | 4.92 | 88,036 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,810 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,271 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,582 |
| World Currency Quiz | 0 | - | 4.92 | 298,410 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,779 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,001 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,782 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,251 |
| Landlocked Countries | 0 | - | 4.99 | 413,503 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,592 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,445 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,156 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,602 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,964 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,124 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,755 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,544 |
| Himalayan Countries | 0 | - | 4.95 | 135,321 |
| Andean Countries | 0 | - | 4.94 | 82,805 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,204 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,171 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,879 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,585 |
| Danube Countries | 0 | - | 4.97 | 71,068 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,746 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,527 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,449 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,370 |
| European Landlocked Countries | 0 | - | 4.99 | 145,742 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,186 |
| Countries with the Most Species | 0 | - | 4.99 | 95,235 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,322 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,951 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,569 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,943 |
| Countries in the Alps | 0 | - | 4.86 | 116,803 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,811 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,549 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,240 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,996 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,409 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,147 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,992 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,559 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,743 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,232 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,040 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,038 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,445 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,731 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,743 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,038 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,631 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,759 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,229 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,649 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,597 |
| Largest Countries By Category | 0 | - | 4.97 | 156,742 |
| Countries by Countries | 0 | - | 4.96 | 62,249 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,960 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,757 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,779 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,687 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,701 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,484 |
| Demonyms Quiz | 0 | - | 4.15 | 184,833 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,227 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,386 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,614 |
| Longest International Borders | 0 | - | 4.99 | 263,532 |
| Countries with Three Borders | 0 | - | 4.96 | 36,177 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,596 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,662 |
| Demonym of Every Country | 0 | - | 4.91 | 58,634 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,210 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,773 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,841 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,085 |
| Island Countries | 0 | - | 4.99 | 707,577 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,333 |
| Northernmost Countries | 0 | - | 4.99 | 357,672 |
| Countries of South America | 0 | - | 5.00 | 914,537 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,233 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,992 |
| "Land" Countries | 0 | - | 4.98 | 333,621 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,851 |
| Airline Logos | 0 | - | 4.45 | 139,940 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,158 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,134 |
| Countries with Megacities | 0 | - | 4.99 | 246,788 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,055 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,931 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,479 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,822 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,026 |
| Cities by Famous Street | 0 | - | 3.96 | 48,245 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,064 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,746 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,931 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,645 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,595 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,606 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,425 |
| Countries by Capital City | 0 | - | 5.00 | 66,626 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,318 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,900 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,404 |
| Moved Capital Cities | 0 | - | 4.96 | 73,581 |
| Countries by Official Language | 0 | - | 4.95 | 192,751 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,095 |
| Countries in their Native Language | 0 | - | 4.99 | 196,618 |
| Independence from Whom | 0 | - | 4.99 | 209,661 |
| Subdivisions by Country | 0 | - | 4.86 | 50,063 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,726 |
| Megadiverse Countries | 0 | - | 4.97 | 133,891 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,779 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,916 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,425 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,856 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,641 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,991 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,922 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,135 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,209 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,738 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,551 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,408 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,485 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,493 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,661 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,018 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,033 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,551 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,318 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,329 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,977 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,936 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,721 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,844 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,052 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,266 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,940 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,330 |
| Widest Countries East to West | 0 | - | 4.92 | 128,598 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,215 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,195 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,562 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,681 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,620 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,031 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,050 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,577 |
| Countries with Double Letters | 0 | - | 4.97 | 93,368 |
| Countries that End in N | 0 | - | 4.94 | 156,708 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,666 |
| Countries with Six Letters | 0 | - | 4.93 | 210,335 |
| Countries with W | 0 | - | 4.97 | 158,212 |
| Countries with Z | 0 | - | 4.98 | 287,848 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,534 |
| Countries That End in U | 0 | - | 4.95 | 119,511 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,523 |
| Countries that End in O | 0 | - | 4.92 | 158,545 |
| Countries that End in R | 0 | - | 4.87 | 118,267 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,855 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,994 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,309 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,481 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,999 |
| Countries That End in Y | 0 | - | 4.90 | 185,196 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,353 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,669 |
| Countries that End in I | 0 | - | 4.94 | 134,404 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,178 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,187 |
| Countries That End in NIA | 0 | - | 4.92 | 109,000 |
| Countries That End in BIA | 0 | - | 4.92 | 147,705 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,048 |
