| Busiest Airports in Europe | 0 | - | 4.91 | 146,970 |
| World's Busiest Airports | 0 | - | 4.96 | 236,970 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,830,052 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,079 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 216,361 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,750 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,328 |
| Top World Languages | 0 | - | 4.92 | 828,952 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,083 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,232 |
| Cities by Airports | 0 | - | 4.47 | 103,961 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,700 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,679 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,058 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,556 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,091 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,667 |
| Boundary Waters | 0 | - | 4.92 | 88,739 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,390 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,630 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 72,957 |
| World Currency Quiz | 0 | - | 4.92 | 306,388 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,965 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,637 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,481 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,093 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,891 |
| Landlocked Countries | 0 | - | 4.99 | 425,040 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,487 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,000 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,892 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,893 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,923 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,903 |
| World Capitals Quiz | 0 | - | 5.00 | 5,102,410 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,900 |
| Himalayan Countries | 0 | - | 4.93 | 139,967 |
| Andean Countries | 0 | - | 4.94 | 85,288 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,445 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,791 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,018 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,314 |
| Danube Countries | 0 | - | 4.97 | 72,312 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,475 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,753 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,972 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,463 |
| European Landlocked Countries | 0 | - | 4.99 | 147,525 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,181 |
| Countries with the Most Species | 0 | - | 4.99 | 103,518 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,313 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,738 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,849 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,785 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,519 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,952 |
| Countries in the Alps | 0 | - | 4.87 | 118,681 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,294 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,470 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,725 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,913 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,956 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,874 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,184 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,312 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,808 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,369 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,112 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,819 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,690 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,494 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,729 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,826 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,670 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,560 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,683 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,575 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,430 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,981 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,470 |
| Largest Countries By Category | 0 | - | 4.97 | 158,756 |
| Countries by Countries | 0 | - | 4.96 | 63,577 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,378 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,035 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,800,125 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,091 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,407 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,966 |
| Demonyms Quiz | 0 | - | 4.15 | 185,508 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,606 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,930 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,522 |
| Longest International Borders | 0 | - | 4.99 | 265,739 |
| Countries with Three Borders | 0 | - | 4.96 | 36,746 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,320 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,461 |
| Demonym of Every Country | 0 | - | 4.90 | 61,391 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,385 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,893 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,598,164 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,482 |
| Island Countries | 0 | - | 4.99 | 712,301 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,014 |
| Northernmost Countries | 0 | - | 4.99 | 363,697 |
| Countries of South America | 0 | - | 5.00 | 931,727 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,193 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,887,127 |
| "Land" Countries | 0 | - | 4.98 | 338,237 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,108 |
| Airline Logos | 0 | - | 4.45 | 141,363 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,714 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,982 |
| Countries with Megacities | 0 | - | 4.99 | 266,773 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,669 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,019 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,985 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,138 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,178 |
| Cities by Famous Street | 0 | - | 3.96 | 48,380 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,179 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,193 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,267 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,920 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,134 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,142 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,034 |
| Countries by Capital City | 0 | - | 5.00 | 69,269 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,793 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,170 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,754 |
| Moved Capital Cities | 0 | - | 4.96 | 74,606 |
| Countries by Official Language | 0 | - | 4.95 | 195,877 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,475 |
| Countries in their Native Language | 0 | - | 4.99 | 199,641 |
| Independence from Whom | 0 | - | 4.99 | 212,917 |
| Subdivisions by Country | 0 | - | 4.87 | 50,589 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,340 |
| Megadiverse Countries | 0 | - | 4.96 | 135,231 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,851 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,508 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,412 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,207 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,514 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,806 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,031 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,537 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,794 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,241 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,395 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,342 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,408 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,122 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,555 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,663 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,392,162 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,184 |
| World Map Quiz | 0 | - | 4.81 | 65,585 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,648 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,129 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,000 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,487 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,402 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,356 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,466 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,666 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,651 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,507 |
| Widest Countries East to West | 0 | - | 4.92 | 130,390 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,580 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,180 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,492 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,018 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,926 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,414 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,479 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,881 |
| Countries with Double Letters | 0 | - | 4.96 | 96,949 |
| Countries that End in N | 0 | - | 4.94 | 171,815 |
| Countries with Five Letters | 0 | - | 4.96 | 283,595 |
| Countries with Six Letters | 0 | - | 4.94 | 214,323 |
| Countries with W | 0 | - | 4.96 | 160,850 |
| Countries with Z | 0 | - | 4.98 | 292,301 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,208 |
| Countries That End in U | 0 | - | 4.95 | 121,132 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,009 |
| Countries that End in O | 0 | - | 4.92 | 160,005 |
| Countries that End in R | 0 | - | 4.87 | 119,145 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,900 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,731 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,085 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,770 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,705 |
| Countries That End in Y | 0 | - | 4.91 | 186,058 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,382 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,207 |
| Countries that End in I | 0 | - | 4.94 | 135,281 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,545 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,021 |
| Countries That End in NIA | 0 | - | 4.92 | 110,016 |
| Countries That End in BIA | 0 | - | 4.93 | 149,535 |
