| Airport Codes Quiz #1 | 0 | - | 4.82 | 216,999 |
| Busiest Airports in Europe | 0 | - | 4.91 | 147,138 |
| World's Busiest Airports | 0 | - | 4.96 | 237,671 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,343 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,927,707 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,847 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,046 |
| Top World Languages | 0 | - | 4.92 | 830,608 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,206 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,886 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,497 |
| Cities by Airports | 0 | - | 4.48 | 104,106 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,929 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,974 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,462 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,602 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,131 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,078 |
| World Currency Quiz | 0 | - | 4.92 | 307,180 |
| Boundary Waters | 0 | - | 4.92 | 88,806 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,432 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,770 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,755 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,520 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,171 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,588 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,166 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,018 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,981 |
| Landlocked Countries | 0 | - | 4.99 | 426,684 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,120 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,960 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,079 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,111 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,973 |
| World Capitals Quiz | 0 | - | 5.00 | 5,110,226 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,631 |
| Himalayan Countries | 0 | - | 4.93 | 140,558 |
| Andean Countries | 0 | - | 4.94 | 85,661 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,794 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,279 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,350 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,580 |
| Danube Countries | 0 | - | 4.97 | 72,487 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,709 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,912 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,308 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,757 |
| European Landlocked Countries | 0 | - | 4.99 | 147,683 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,424 |
| Countries with the Most Species | 0 | - | 4.99 | 103,610 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,543 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,794 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,923 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,887 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,629 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,083 |
| Countries in the Alps | 0 | - | 4.87 | 118,877 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,329 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,830 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,021 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,020 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,108 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,053 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,337 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,482 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,931 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,477 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,254 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,926 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,796 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,623 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,861 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,961 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,030 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,669 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,802 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,766 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,001 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,335 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,568 |
| Largest Countries By Category | 0 | - | 4.97 | 158,973 |
| Countries by Countries | 0 | - | 4.97 | 63,727 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,427 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,169 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,808,561 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,532 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,014 |
| Demonyms Quiz | 0 | - | 4.15 | 185,573 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,637 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,267 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,615 |
| Longest International Borders | 0 | - | 4.99 | 265,904 |
| Countries with Three Borders | 0 | - | 4.96 | 36,806 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,393 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,533 |
| Demonym of Every Country | 0 | - | 4.90 | 61,562 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,075 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,012 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,889 |
| Island Countries | 0 | - | 4.99 | 712,790 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,503 |
| Northernmost Countries | 0 | - | 4.99 | 364,333 |
| Countries of South America | 0 | - | 5.00 | 933,529 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,533 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,239 |
| "Land" Countries | 0 | - | 4.98 | 338,635 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,301 |
| Airline Logos | 0 | - | 4.45 | 141,499 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,505 |
| Europe Map Quiz | 0 | - | 5.00 | 4,790,628 |
| All Country Flags of the World | 0 | - | 5.00 | 3,719,514 |
| Foods of the World by Description | 0 | - | 4.18 | 46,154 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,755 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,401 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,141 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,750 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,355 |
| Countries with Megacities | 0 | - | 4.99 | 267,519 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,009 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,247 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,342 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,349 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,344 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,187 |
| Cities by Famous Street | 0 | - | 3.96 | 48,382 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,189 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,422 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,467 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,033 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,281 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,338 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,263 |
| Countries by Capital City | 0 | - | 5.00 | 69,521 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,985 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,290 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,169 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,888 |
| Moved Capital Cities | 0 | - | 4.96 | 74,694 |
| Countries by Official Language | 0 | - | 4.95 | 196,132 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,801 |
| Countries in their Native Language | 0 | - | 4.99 | 199,851 |
| Independence from Whom | 0 | - | 4.99 | 213,252 |
| Subdivisions by Country | 0 | - | 4.87 | 50,643 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,573 |
| Megadiverse Countries | 0 | - | 4.96 | 146,251 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,050 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,559 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,759 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,241 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,368 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,894 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,198 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,598 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,130 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,664 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,443 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,472 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,183 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,610 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,924 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,558 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,767 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,398 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,166 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,632 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,754 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,494 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,614 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,800 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,737 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,865 |
| Widest Countries East to West | 0 | - | 4.92 | 130,783 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,619 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,319 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,539 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,110 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,053 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,551 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,519 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,910 |
| Airlines by Country | 0 | - | 4.52 | 135,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,308 |
| Countries that End in N | 0 | - | 4.95 | 172,393 |
| Countries with Five Letters | 0 | - | 4.96 | 284,297 |
| Countries with Six Letters | 0 | - | 4.94 | 214,697 |
| Countries with W | 0 | - | 4.96 | 161,110 |
| Countries with Z | 0 | - | 4.98 | 292,691 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,457 |
| Countries That End in U | 0 | - | 4.95 | 121,281 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,249 |
| Countries that End in O | 0 | - | 4.92 | 160,286 |
| Countries that End in R | 0 | - | 4.87 | 119,231 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,995 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,000 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 176,825 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,955 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,110 |
| Countries That End in Y | 0 | - | 4.91 | 186,125 |
