| Busiest Airports in Europe | 0 | - | 4.91 | 146,168 |
| World's Busiest Airports | 0 | - | 4.96 | 233,299 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,420,488 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,779 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,934 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,316 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,941 |
| Top World Languages | 0 | - | 4.92 | 821,637 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,542 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,837 |
| Cities by Airports | 0 | - | 4.49 | 88,704 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,758 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,376 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,197 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,337 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,903 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,033 |
| Boundary Waters | 0 | - | 4.92 | 88,449 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,135 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,036 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,357 |
| World Currency Quiz | 0 | - | 4.92 | 302,738 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,917 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,928 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,125 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,736 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,215 |
| Landlocked Countries | 0 | - | 4.99 | 419,979 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,054 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,306 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,568 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,884 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,086 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,558 |
| World Capitals Quiz | 0 | - | 5.00 | 5,070,567 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,467 |
| Himalayan Countries | 0 | - | 4.95 | 137,890 |
| Andean Countries | 0 | - | 4.95 | 84,157 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,373 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,943 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,025 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,477 |
| Danube Countries | 0 | - | 4.97 | 71,769 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,707 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,165 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,857 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,941 |
| European Landlocked Countries | 0 | - | 4.99 | 146,900 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,290 |
| Countries with the Most Species | 0 | - | 4.99 | 103,039 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,443 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,468 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,636 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,400 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,079 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,468 |
| Countries in the Alps | 0 | - | 4.87 | 117,880 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,062 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 96,944 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,599 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,504 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,385 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,242 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,801 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,405 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,281 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,041 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,649 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,544 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,387 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,013 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,306 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,308 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,436 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,139 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,642 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,710 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,929 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,524 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,063 |
| Largest Countries By Category | 0 | - | 4.97 | 157,841 |
| Countries by Countries | 0 | - | 4.97 | 62,952 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,187 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,450 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,764,149 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,906 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,514 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,787 |
| Demonyms Quiz | 0 | - | 4.15 | 185,133 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,428 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,445 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,148 |
| Longest International Borders | 0 | - | 4.99 | 264,864 |
| Countries with Three Borders | 0 | - | 4.96 | 36,511 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,988 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,100 |
| Demonym of Every Country | 0 | - | 4.91 | 59,457 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,305 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,902 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,585,374 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,904 |
| Island Countries | 0 | - | 4.99 | 710,194 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,047,278 |
| Northernmost Countries | 0 | - | 4.99 | 361,001 |
| Countries of South America | 0 | - | 5.00 | 924,425 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,254 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,870,295 |
| "Land" Countries | 0 | - | 4.98 | 336,072 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,084 |
| Airline Logos | 0 | - | 4.45 | 140,681 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,376 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,342 |
| Countries with Megacities | 0 | - | 4.99 | 262,861 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,181 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,158 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,479 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,208 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,106 |
| Cities by Famous Street | 0 | - | 3.96 | 48,317 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,122 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,055 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,175 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,355 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,437 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,160 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,895 |
| Countries by Capital City | 0 | - | 5.00 | 68,183 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,120 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,602 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,132 |
| Moved Capital Cities | 0 | - | 4.96 | 74,161 |
| Countries by Official Language | 0 | - | 4.95 | 194,847 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,816 |
| Countries in their Native Language | 0 | - | 4.99 | 198,388 |
| Independence from Whom | 0 | - | 4.99 | 211,605 |
| Subdivisions by Country | 0 | - | 4.86 | 50,339 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,903 |
| Megadiverse Countries | 0 | - | 4.96 | 134,844 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,723 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,235 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,809 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,047 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,849 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,452 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,137 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,907 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,542 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,029 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,257 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,775 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,058 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,841 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,227 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,393 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,321 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,516 |
| World Map Quiz | 0 | - | 4.81 | 64,791 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,150 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,700 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,052 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,772 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,651 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,652 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,791 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,927 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,334 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,389 |
| Widest Countries East to West | 0 | - | 4.92 | 129,459 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,408 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,108 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,041 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,603 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,351 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,660 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,291 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,752 |
| Countries with Double Letters | 0 | - | 4.97 | 95,306 |
| Countries that End in N | 0 | - | 4.95 | 170,331 |
| Countries with Five Letters | 0 | - | 4.96 | 281,139 |
| Countries with Six Letters | 0 | - | 4.94 | 212,745 |
| Countries with W | 0 | - | 4.97 | 159,664 |
| Countries with Z | 0 | - | 4.98 | 290,544 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,929 |
| Countries That End in U | 0 | - | 4.95 | 120,492 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,938 |
| Countries that End in O | 0 | - | 4.92 | 159,269 |
| Countries that End in R | 0 | - | 4.87 | 118,793 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,558 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,544 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,285 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,194 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,791 |
| Countries That End in Y | 0 | - | 4.91 | 185,699 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,471 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,561 |
| Countries that End in I | 0 | - | 4.94 | 134,929 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,670 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,643 |
| Countries That End in NIA | 0 | - | 4.92 | 109,595 |
| Countries That End in BIA | 0 | - | 4.93 | 148,952 |
