| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,493 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,934 |
| World's Busiest Airports | 0 | - | 4.96 | 231,636 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,409 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,265,141 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,152 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,600 |
| Top World Languages | 0 | - | 4.92 | 819,145 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,361 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,323 |
| Places in their Native Language #2 | 0 | - | 4.81 | 133,076 |
| Cities by Airports | 0 | - | 4.49 | 88,605 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,438 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,925 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,559 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,257 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,853 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,134 |
| World Currency Quiz | 0 | - | 4.91 | 301,399 |
| Boundary Waters | 0 | - | 4.92 | 88,333 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,047 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,811 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,752 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,042 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,608 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,920 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,071 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,888 |
| Landlocked Countries | 0 | - | 4.99 | 417,979 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,837 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,460 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,529 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,758 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,440 |
| World Capitals Quiz | 0 | - | 5.00 | 5,058,287 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,518 |
| Himalayan Countries | 0 | - | 4.94 | 137,007 |
| Andean Countries | 0 | - | 4.95 | 83,725 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,970 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,335 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,646 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,218 |
| Danube Countries | 0 | - | 4.97 | 71,560 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,405 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,972 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,467 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,522 |
| European Landlocked Countries | 0 | - | 4.99 | 146,648 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,990 |
| Countries with the Most Species | 0 | - | 4.99 | 102,701 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,127 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,387 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,553 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,245 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,907 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,294 |
| Countries in the Alps | 0 | - | 4.86 | 117,537 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,979 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,034 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,182 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,354 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,883 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,988 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,380 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,153 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,106 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,911 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,469 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,430 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,288 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,849 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,113 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,137 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,987 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,992 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,515 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,400 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,808 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,983 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,923 |
| Largest Countries By Category | 0 | - | 4.97 | 157,487 |
| Countries by Countries | 0 | - | 4.96 | 62,752 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,129 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,235 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,750,571 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,272 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,709 |
| Demonyms Quiz | 0 | - | 4.15 | 185,043 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,367 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,862 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,007 |
| Longest International Borders | 0 | - | 4.99 | 264,519 |
| Countries with Three Borders | 0 | - | 4.96 | 36,407 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,861 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,956 |
| Demonym of Every Country | 0 | - | 4.91 | 59,062 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,105 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,580,940 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,337 |
| Island Countries | 0 | - | 4.99 | 709,342 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,971 |
| Northernmost Countries | 0 | - | 4.99 | 360,040 |
| Countries of South America | 0 | - | 5.00 | 921,696 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,487 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,863,388 |
| "Land" Countries | 0 | - | 4.98 | 335,551 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,711 |
| Airline Logos | 0 | - | 4.45 | 140,438 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,556 |
| Europe Map Quiz | 0 | - | 5.00 | 4,751,753 |
| All Country Flags of the World | 0 | - | 5.00 | 3,641,534 |
| Foods of the World by Description | 0 | - | 4.18 | 45,994 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,312 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,274 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,943 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,373 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,689 |
| Countries with Megacities | 0 | - | 4.99 | 249,797 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,520 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,789 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,857 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,777 |
| Biggest Cities in the World | 0 | - | 4.91 | 795,594 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,082 |
| Cities by Famous Street | 0 | - | 3.96 | 48,300 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,105 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,711 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,813 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,174 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,198 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,823 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,426 |
| Countries by Capital City | 0 | - | 5.00 | 67,756 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,881 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,379 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,316 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,874 |
| Moved Capital Cities | 0 | - | 4.96 | 73,980 |
| Countries by Official Language | 0 | - | 4.95 | 194,456 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,283 |
| Countries in their Native Language | 0 | - | 4.99 | 198,014 |
| Independence from Whom | 0 | - | 4.99 | 211,127 |
| Subdivisions by Country | 0 | - | 4.86 | 50,252 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,562 |
| Megadiverse Countries | 0 | - | 4.96 | 134,697 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,150 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,146 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,701 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,989 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,599 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,312 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,826 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,747 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,447 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,925 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,646 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,661 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,885 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,727 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,051 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,279 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,932 |
| World Map Quiz | 0 | - | 4.81 | 64,374 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,929 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,312 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,825 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,547 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,071 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,430 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,601 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,748 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,214 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,210 |
| Widest Countries East to West | 0 | - | 4.92 | 129,275 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,366 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,834 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,968 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,445 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,121 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,466 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,193 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,707 |
| Airlines by Country | 0 | - | 4.52 | 135,158 |
| Countries with Double Letters | 0 | - | 4.97 | 94,891 |
| Countries that End in N | 0 | - | 4.95 | 169,472 |
| Countries with Five Letters | 0 | - | 4.96 | 278,345 |
| Countries with Six Letters | 0 | - | 4.94 | 212,229 |
| Countries with W | 0 | - | 4.97 | 159,371 |
| Countries with Z | 0 | - | 4.98 | 289,580 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,572 |
| Countries That End in U | 0 | - | 4.95 | 120,335 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,586 |
| Countries that End in O | 0 | - | 4.92 | 159,134 |
| Countries that End in R | 0 | - | 4.87 | 118,674 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,462 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,165 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,997 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,997 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,586 |
| Countries That End in Y | 0 | - | 4.90 | 185,594 |
