| Busiest Airports in Europe | 0 | - | 4.91 | 144,785 |
| World's Busiest Airports | 0 | - | 4.94 | 210,024 |
| Countries with the Most Airports | 0 | - | 4.96 | 96,963 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 212,833 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,848,548 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,475 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,972 |
| Top World Languages | 0 | - | 4.92 | 811,910 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,716 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,261 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,891 |
| Cities by Airports | 0 | - | 4.49 | 87,745 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,059 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,125 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,645 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 118,675 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,917 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,666 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,472 |
| World Currency Quiz | 0 | - | 4.92 | 297,749 |
| Boundary Waters | 0 | - | 4.92 | 87,990 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,170 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 219,922 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,742 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,191 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,534 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,312 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,770 |
| Landlocked Countries | 0 | - | 4.99 | 412,851 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,659 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,102 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,896 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,456 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,835 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,064 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,291 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,220 |
| Himalayan Countries | 0 | - | 4.95 | 135,043 |
| Andean Countries | 0 | - | 4.94 | 82,656 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,077 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,978 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,750 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,457 |
| Danube Countries | 0 | - | 4.97 | 70,989 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,634 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,450 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,279 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,191 |
| European Landlocked Countries | 0 | - | 4.99 | 145,663 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,044 |
| Countries with the Most Species | 0 | - | 4.99 | 95,184 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,188 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,173 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,332 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,907 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,507 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,862 |
| Countries in the Alps | 0 | - | 4.87 | 116,678 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,772 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,464 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,066 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,936 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,318 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,061 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,934 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,466 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,682 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,296 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,964 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,164 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,994 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,358 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,668 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,670 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,855 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,564 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,199 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,659 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,813 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,351 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,534 |
| Largest Countries By Category | 0 | - | 4.97 | 156,602 |
| Countries by Countries | 0 | - | 4.96 | 62,160 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,204 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,931 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,306 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,649 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,459 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,625 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,454 |
| Demonyms Quiz | 0 | - | 4.15 | 184,789 |
| Airports Named for People #2 | 0 | - | 4.23 | 15,311 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,211 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,126 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,539 |
| Longest International Borders | 0 | - | 4.99 | 263,359 |
| Countries with Three Borders | 0 | - | 4.96 | 36,129 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,550 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,601 |
| Demonym of Every Country | 0 | - | 4.91 | 58,561 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,980 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,568,815 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,814 |
| Island Countries | 0 | - | 4.99 | 707,223 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,286 |
| Northernmost Countries | 0 | - | 4.99 | 357,222 |
| Countries of South America | 0 | - | 5.00 | 913,310 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,525 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,014 |
| "Land" Countries | 0 | - | 4.98 | 333,407 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,682 |
| Airline Logos | 0 | - | 4.45 | 139,850 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,944 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,006 |
| All Country Flags of the World | 0 | - | 5.00 | 3,593,773 |
| Foods of the World by Description | 0 | - | 4.18 | 45,925 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,122 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,200 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,370 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,337 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 62,977 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,420 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,002 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,852 |
| Countries with Megacities | 0 | - | 4.99 | 246,154 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,771 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,727 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,236 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,664 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,134 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,018 |
| Cities by Famous Street | 0 | - | 3.96 | 48,238 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,060 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,567 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,805 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,560 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,508 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,475 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,204 |
| Countries by Capital City | 0 | - | 5.00 | 66,449 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,220 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,805 |
| World Capitals by Proximity | 0 | - | 4.91 | 327,927 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,333 |
| Moved Capital Cities | 0 | - | 4.96 | 73,506 |
| Countries by Official Language | 0 | - | 4.95 | 192,581 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,853 |
| Countries in their Native Language | 0 | - | 4.99 | 196,458 |
| Independence from Whom | 0 | - | 4.99 | 209,446 |
| Subdivisions by Country | 0 | - | 4.86 | 50,032 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,579 |
| Megadiverse Countries | 0 | - | 4.97 | 133,829 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,643 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,875 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,370 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,833 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,530 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,585 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,059 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,173 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,711 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,367 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,360 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,423 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,441 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,600 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,978 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,331 |
| World Map Quiz | 0 | - | 4.81 | 63,350 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,193 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,213 |
| Countries by Founding Story | 0 | - | 4.95 | 76,441 |
| Countries by Road Signs | 0 | - | 4.98 | 52,969 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,143 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,874 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,847 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,496 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,759 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,958 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,166 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,875 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,250 |
| Widest Countries East to West | 0 | - | 4.92 | 128,515 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,073 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,519 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,620 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,515 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,945 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,031 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,551 |
| Airlines by Country | 0 | - | 4.52 | 134,707 |
| Countries with Double Letters | 0 | - | 4.97 | 93,210 |
| Countries that End in N | 0 | - | 4.94 | 156,278 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,471 |
| Countries with Six Letters | 0 | - | 4.93 | 210,170 |
| Countries with W | 0 | - | 4.97 | 158,088 |
| Countries with Z | 0 | - | 4.98 | 287,316 |
