| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,599 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,171 |
| World's Busiest Airports | 0 | - | 4.95 | 215,505 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,517 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,046,330 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,434 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,709 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,702 |
| Top World Languages | 0 | - | 4.92 | 815,269 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,918 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,808 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,150 |
| Cities by Airports | 0 | - | 4.49 | 88,380 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,549 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,237 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,584 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,040 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,743 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,796 |
| World Currency Quiz | 0 | - | 4.92 | 299,533 |
| Boundary Waters | 0 | - | 4.92 | 88,125 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,897 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,487 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,415 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,870 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,379 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,708 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,697 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,817 |
| Landlocked Countries | 0 | - | 4.99 | 415,243 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,749 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,279 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,078 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,320 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,246 |
| World Capitals Quiz | 0 | - | 5.00 | 5,041,978 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,241 |
| Himalayan Countries | 0 | - | 4.95 | 135,933 |
| Andean Countries | 0 | - | 4.94 | 83,149 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,469 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,598 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,169 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,816 |
| Danube Countries | 0 | - | 4.97 | 71,252 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,984 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,699 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,837 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,770 |
| European Landlocked Countries | 0 | - | 4.99 | 145,950 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,497 |
| Countries with the Most Species | 0 | - | 4.99 | 95,333 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,624 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,266 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,437 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,060 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,709 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,065 |
| Countries in the Alps | 0 | - | 4.86 | 117,106 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,870 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,741 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,568 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,150 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,571 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,367 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,131 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,781 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,887 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,675 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,200 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,268 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,135 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,606 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,872 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,884 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,438 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,789 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,348 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,009 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,195 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,161 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,717 |
| Largest Countries By Category | 0 | - | 4.97 | 157,006 |
| Countries by Countries | 0 | - | 4.96 | 62,429 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,019 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,924 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,729,688 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,876 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,548 |
| Demonyms Quiz | 0 | - | 4.15 | 184,918 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,284 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,865 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,745 |
| Longest International Borders | 0 | - | 4.99 | 264,090 |
| Countries with Three Borders | 0 | - | 4.96 | 36,281 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,695 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,787 |
| Demonym of Every Country | 0 | - | 4.91 | 58,785 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,710 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,602 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,740 |
| Island Countries | 0 | - | 4.99 | 708,267 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,544 |
| Northernmost Countries | 0 | - | 4.99 | 358,630 |
| Countries of South America | 0 | - | 5.00 | 917,611 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,940 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,873 |
| "Land" Countries | 0 | - | 4.98 | 334,074 |
| World's Biggest Airlines | 0 | - | 4.44 | 124,156 |
| Airline Logos | 0 | - | 4.45 | 140,132 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,693 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,205 |
| All Country Flags of the World | 0 | - | 5.00 | 3,616,656 |
| Foods of the World by Description | 0 | - | 4.18 | 45,956 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,219 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,230 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,710 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,321 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,867 |
| Countries with Megacities | 0 | - | 4.99 | 248,109 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,749 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,329 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,133 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,274 |
| Biggest Cities in the World | 0 | - | 4.91 | 792,467 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,045 |
| Cities by Famous Street | 0 | - | 3.96 | 48,266 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,085 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,165 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,321 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,920 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,877 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,041 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,884 |
| Countries by Capital City | 0 | - | 5.00 | 67,133 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,560 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,087 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,113 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,557 |
| Moved Capital Cities | 0 | - | 4.96 | 73,759 |
| Countries by Official Language | 0 | - | 4.95 | 193,146 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,655 |
| Countries in their Native Language | 0 | - | 4.99 | 196,981 |
| Independence from Whom | 0 | - | 4.99 | 210,118 |
| Subdivisions by Country | 0 | - | 4.86 | 50,141 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,039 |
| Megadiverse Countries | 0 | - | 4.97 | 134,342 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,137 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,004 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,533 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,901 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,865 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,115 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,314 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,421 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,293 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,783 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,896 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,509 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,613 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,577 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,791 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,118 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,091 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,571 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,760 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,503 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,226 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,270 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,098 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,301 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,487 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,071 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,520 |
| Widest Countries East to West | 0 | - | 4.92 | 129,015 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,282 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,470 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,644 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,859 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,813 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,217 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,543 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,639 |
| Airlines by Country | 0 | - | 4.52 | 134,957 |
| Countries with Double Letters | 0 | - | 4.96 | 93,665 |
| Countries that End in N | 0 | - | 4.94 | 157,133 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,018 |
| Countries with Six Letters | 0 | - | 4.93 | 210,677 |
| Countries with W | 0 | - | 4.97 | 158,415 |
| Countries with Z | 0 | - | 4.98 | 288,223 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,749 |
| Countries That End in U | 0 | - | 4.95 | 119,608 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,857 |
| Countries that End in O | 0 | - | 4.92 | 158,651 |
| Countries that End in R | 0 | - | 4.87 | 118,373 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,930 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,396 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,545 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,641 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,194 |
| Countries That End in Y | 0 | - | 4.90 | 185,283 |
