| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,132 |
| Busiest Airports in Europe | 0 | - | 4.91 | 144,932 |
| World's Busiest Airports | 0 | - | 4.94 | 210,549 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,182 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,936,029 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,223 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,572 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,946 |
| Top World Languages | 0 | - | 4.92 | 813,385 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,788 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,512 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,994 |
| Cities by Airports | 0 | - | 4.49 | 88,115 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,313 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,913 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,077 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,965 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,696 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,610 |
| World Currency Quiz | 0 | - | 4.92 | 298,632 |
| Boundary Waters | 0 | - | 4.92 | 88,061 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,826 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,314 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,023 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,798 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,275 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,615 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,501 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,781 |
| Landlocked Countries | 0 | - | 4.99 | 413,794 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,700 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,177 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,676 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,060 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,141 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,866 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,666 |
| Himalayan Countries | 0 | - | 4.95 | 135,428 |
| Andean Countries | 0 | - | 4.94 | 82,854 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,248 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,248 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,934 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,628 |
| Danube Countries | 0 | - | 4.97 | 71,097 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,782 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,551 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,523 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,439 |
| European Landlocked Countries | 0 | - | 4.99 | 145,774 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,238 |
| Countries with the Most Species | 0 | - | 4.99 | 95,252 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,379 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,203 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,374 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,968 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,583 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,962 |
| Countries in the Alps | 0 | - | 4.86 | 116,854 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,820 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,585 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,284 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,023 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,437 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,191 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,021 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,599 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,773 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,374 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,079 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,201 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,053 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,461 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,766 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,768 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,108 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,662 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,265 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,792 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,393 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,731 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,613 |
| Largest Countries By Category | 0 | - | 4.97 | 156,791 |
| Countries by Countries | 0 | - | 4.96 | 62,271 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,786 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,718,672 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,730 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,493 |
| Demonyms Quiz | 0 | - | 4.15 | 184,848 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,242 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,470 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,637 |
| Longest International Borders | 0 | - | 4.99 | 263,559 |
| Countries with Three Borders | 0 | - | 4.96 | 36,190 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,611 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,690 |
| Demonym of Every Country | 0 | - | 4.91 | 58,658 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,286 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,572 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,176 |
| Island Countries | 0 | - | 4.99 | 707,700 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,705 |
| Northernmost Countries | 0 | - | 4.99 | 357,832 |
| Countries of South America | 0 | - | 5.00 | 915,130 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,911 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,849,108 |
| "Land" Countries | 0 | - | 4.98 | 333,703 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,903 |
| Airline Logos | 0 | - | 4.45 | 139,982 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,817 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,457 |
| All Country Flags of the World | 0 | - | 5.00 | 3,604,123 |
| Foods of the World by Description | 0 | - | 4.18 | 45,936 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,170 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,216 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,431 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,748 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,390 |
| Countries with Megacities | 0 | - | 4.99 | 247,162 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,239 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,055 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,669 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,977 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,675 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,028 |
| Cities by Famous Street | 0 | - | 3.96 | 48,249 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,067 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,819 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,980 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,672 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,626 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,665 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,491 |
| Countries by Capital City | 0 | - | 5.00 | 66,696 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,360 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,923 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,511 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,431 |
| Moved Capital Cities | 0 | - | 4.96 | 73,602 |
| Countries by Official Language | 0 | - | 4.95 | 192,809 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,179 |
| Countries in their Native Language | 0 | - | 4.99 | 196,678 |
| Independence from Whom | 0 | - | 4.99 | 209,751 |
| Subdivisions by Country | 0 | - | 4.86 | 50,075 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,799 |
| Megadiverse Countries | 0 | - | 4.97 | 133,916 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,834 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,924 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,432 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,865 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,690 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,020 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,063 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,163 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,221 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,752 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,619 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,437 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,507 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,510 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,698 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,033 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,637 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,349 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,395 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,015 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,974 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,826 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,876 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,083 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,295 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,958 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,350 |
| Widest Countries East to West | 0 | - | 4.92 | 128,622 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,252 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,580 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,702 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,652 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,065 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,054 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,589 |
| Airlines by Country | 0 | - | 4.52 | 134,815 |
| Countries with Double Letters | 0 | - | 4.97 | 93,423 |
| Countries that End in N | 0 | - | 4.94 | 156,918 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,725 |
| Countries with Six Letters | 0 | - | 4.93 | 210,400 |
| Countries with W | 0 | - | 4.97 | 158,251 |
| Countries with Z | 0 | - | 4.98 | 287,915 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,578 |
| Countries That End in U | 0 | - | 4.95 | 119,529 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,606 |
| Countries that End in O | 0 | - | 4.92 | 158,570 |
| Countries that End in R | 0 | - | 4.87 | 118,283 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,866 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,093 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,361 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,514 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,051 |
| Countries That End in Y | 0 | - | 4.90 | 185,216 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,408 |
