| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,636 |
| Busiest Airports in Europe | 0 | - | 4.91 | 146,022 |
| World's Busiest Airports | 0 | - | 4.96 | 232,347 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,538 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,318,524 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,203 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,972 |
| Top World Languages | 0 | - | 4.92 | 819,978 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,419 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,883 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,527 |
| Places in their Native Language #2 | 0 | - | 4.81 | 133,785 |
| Cities by Airports | 0 | - | 4.49 | 88,634 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,551 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,088 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,777 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,289 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,875 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,187 |
| World Currency Quiz | 0 | - | 4.91 | 301,870 |
| Boundary Waters | 0 | - | 4.92 | 88,368 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,068 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,891 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,824 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,068 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,646 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,972 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,153 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,903 |
| Landlocked Countries | 0 | - | 4.99 | 418,686 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,852 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,488 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,637 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,867 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,474 |
| World Capitals Quiz | 0 | - | 5.00 | 5,062,518 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,878 |
| Himalayan Countries | 0 | - | 4.94 | 137,313 |
| Andean Countries | 0 | - | 4.95 | 83,874 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,158 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,565 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,793 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,315 |
| Danube Countries | 0 | - | 4.97 | 71,624 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,510 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,029 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,594 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,674 |
| European Landlocked Countries | 0 | - | 4.99 | 146,741 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,096 |
| Countries with the Most Species | 0 | - | 4.99 | 102,883 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,227 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,425 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,579 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,286 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,962 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,343 |
| Countries in the Alps | 0 | - | 4.87 | 117,643 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,001 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,105 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,320 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,392 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,958 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,059 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,428 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,249 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,162 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,948 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,529 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,462 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,324 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,903 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,174 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,187 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,134 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,045 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,558 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,488 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,261 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,166 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,980 |
| Largest Countries By Category | 0 | - | 4.97 | 157,594 |
| Countries by Countries | 0 | - | 4.96 | 62,816 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,153 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,300 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,755,386 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,350 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,726 |
| Demonyms Quiz | 0 | - | 4.15 | 185,079 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,386 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,020 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,059 |
| Longest International Borders | 0 | - | 4.99 | 264,619 |
| Countries with Three Borders | 0 | - | 4.96 | 36,446 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,903 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,994 |
| Demonym of Every Country | 0 | - | 4.91 | 59,126 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,771 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,492 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,538 |
| Island Countries | 0 | - | 4.99 | 709,645 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,805 |
| Northernmost Countries | 0 | - | 4.99 | 360,370 |
| Countries of South America | 0 | - | 5.00 | 922,596 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,623 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,865,639 |
| "Land" Countries | 0 | - | 4.98 | 335,743 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,830 |
| Airline Logos | 0 | - | 4.45 | 140,522 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,197 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,195 |
| All Country Flags of the World | 0 | - | 5.00 | 3,647,844 |
| Foods of the World by Description | 0 | - | 4.18 | 46,003 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,335 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,281 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,972 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,635 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,948 |
| Countries with Megacities | 0 | - | 4.99 | 258,100 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,822 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,946 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,104 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,954 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,471 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,090 |
| Cities by Famous Street | 0 | - | 3.96 | 48,305 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,111 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,828 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,928 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,228 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,255 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,942 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,591 |
| Countries by Capital City | 0 | - | 5.00 | 67,893 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,957 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,451 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,590 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,945 |
| Moved Capital Cities | 0 | - | 4.96 | 74,040 |
| Countries by Official Language | 0 | - | 4.95 | 194,598 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,471 |
| Countries in their Native Language | 0 | - | 4.99 | 198,141 |
| Independence from Whom | 0 | - | 4.99 | 211,254 |
| Subdivisions by Country | 0 | - | 4.86 | 50,276 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,656 |
| Megadiverse Countries | 0 | - | 4.96 | 134,750 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,517 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,173 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,736 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,007 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,679 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,361 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,941 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,828 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,470 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,979 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,901 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,701 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,975 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,758 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,134 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,309 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,131 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,010 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,460 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,903 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,615 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,276 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,495 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,653 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,806 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,248 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,265 |
| Widest Countries East to West | 0 | - | 4.92 | 129,346 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,377 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,933 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,985 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,499 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,191 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,524 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,224 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,724 |
| Airlines by Country | 0 | - | 4.52 | 135,228 |
| Countries with Double Letters | 0 | - | 4.97 | 95,050 |
| Countries that End in N | 0 | - | 4.95 | 169,912 |
| Countries with Five Letters | 0 | - | 4.96 | 279,912 |
| Countries with Six Letters | 0 | - | 4.94 | 212,431 |
| Countries with W | 0 | - | 4.97 | 159,497 |
| Countries with Z | 0 | - | 4.98 | 289,755 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,699 |
| Countries That End in U | 0 | - | 4.95 | 120,398 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,722 |
| Countries that End in O | 0 | - | 4.92 | 159,182 |
| Countries that End in R | 0 | - | 4.87 | 118,727 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,501 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,280 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,079 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,065 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,651 |
| Countries That End in Y | 0 | - | 4.90 | 185,639 |
