| Countries of the World Quiz | 0 | - | 5.00 | 46,978,054 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,609 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,200 |
| Top World Languages | 0 | - | 4.92 | 814,042 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,625 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,044 |
| Busiest Airports in Europe | 0 | - | 4.91 | 144,993 |
| World's Busiest Airports | 0 | - | 4.94 | 210,755 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,726 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,404 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,291 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,025 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,267 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,306 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,989 |
| Boundary Waters | 0 | - | 4.92 | 88,080 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,851 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,390 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,669 |
| World Currency Quiz | 0 | - | 4.92 | 298,963 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,787 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,076 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,817 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,312 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,820 |
| Landlocked Countries | 0 | - | 4.99 | 414,340 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,645 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,573 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,216 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,865 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,180 |
| Cities by Airports | 0 | - | 4.49 | 88,311 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,169 |
| World Capitals Quiz | 0 | - | 5.00 | 5,036,242 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,880 |
| Himalayan Countries | 0 | - | 4.95 | 135,609 |
| Andean Countries | 0 | - | 4.94 | 82,963 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,326 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,370 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,029 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,701 |
| Danube Countries | 0 | - | 4.97 | 71,152 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,853 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,609 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,631 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,548 |
| European Landlocked Countries | 0 | - | 4.99 | 145,847 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,309 |
| Countries with the Most Species | 0 | - | 4.99 | 95,286 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,463 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,223 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,394 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,997 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,636 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,007 |
| Countries in the Alps | 0 | - | 4.86 | 116,941 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,837 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,649 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,394 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,073 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,482 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,259 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,067 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,666 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,820 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,542 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,125 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,221 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,086 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,508 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,807 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,802 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,217 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,715 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,293 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,871 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,667 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,911 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,656 |
| Largest Countries By Category | 0 | - | 4.97 | 156,877 |
| Countries by Countries | 0 | - | 4.96 | 62,328 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,838 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,722,744 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,786 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,514 |
| Demonyms Quiz | 0 | - | 4.15 | 184,875 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,297 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,256 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,631 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,682 |
| Longest International Borders | 0 | - | 4.99 | 263,938 |
| Countries with Three Borders | 0 | - | 4.96 | 36,232 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,640 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,727 |
| Demonym of Every Country | 0 | - | 4.91 | 58,715 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,221 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,857 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,572,710 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,392 |
| Island Countries | 0 | - | 4.99 | 707,891 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,454 |
| Northernmost Countries | 0 | - | 4.99 | 358,110 |
| Countries of South America | 0 | - | 5.00 | 916,021 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,134 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,827 |
| "Land" Countries | 0 | - | 4.98 | 333,840 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,707 |
| World's Biggest Airlines | 0 | - | 4.44 | 124,001 |
| Airline Logos | 0 | - | 4.45 | 140,035 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,189 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,621 |
| Countries with Megacities | 0 | - | 4.99 | 247,544 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,456 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,200 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,873 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,125 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,037 |
| Cities by Famous Street | 0 | - | 3.96 | 48,256 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,072 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,954 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,109 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,744 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,706 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,790 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,619 |
| Countries by Capital City | 0 | - | 5.00 | 66,828 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,427 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,990 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,480 |
| Moved Capital Cities | 0 | - | 4.96 | 73,660 |
| Countries by Official Language | 0 | - | 4.95 | 192,926 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,346 |
| Countries in their Native Language | 0 | - | 4.99 | 196,779 |
| Independence from Whom | 0 | - | 4.99 | 209,878 |
| Subdivisions by Country | 0 | - | 4.86 | 50,103 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,888 |
| Megadiverse Countries | 0 | - | 4.97 | 133,962 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,945 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,952 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,464 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,876 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,753 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,049 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,177 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,214 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,247 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,760 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,733 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,454 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,547 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,534 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,728 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,059 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,347 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,794 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,406 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,528 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,311 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,051 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,974 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,965 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,151 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,369 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,996 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,405 |
| Widest Countries East to West | 0 | - | 4.92 | 128,812 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,240 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,318 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,602 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,747 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,698 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,121 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 71,792 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,610 |
| Countries with Double Letters | 0 | - | 4.96 | 93,525 |
| Countries that End in N | 0 | - | 4.94 | 157,009 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,831 |
| Countries with Six Letters | 0 | - | 4.93 | 210,506 |
| Countries with W | 0 | - | 4.97 | 158,320 |
| Countries with Z | 0 | - | 4.98 | 288,040 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,636 |
| Countries That End in U | 0 | - | 4.95 | 119,561 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,714 |
| Countries that End in O | 0 | - | 4.92 | 158,597 |
| Countries that End in R | 0 | - | 4.87 | 118,316 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,883 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,231 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,427 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,562 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,104 |
| Countries That End in Y | 0 | - | 4.90 | 185,241 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,484 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,785 |
| Countries that End in I | 0 | - | 4.94 | 134,481 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,313 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,242 |
| Countries That End in NIA | 0 | - | 4.92 | 109,058 |
| Countries That End in BIA | 0 | - | 4.92 | 147,772 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,150 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,560 |
