| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,107 |
| Busiest Airports in Europe | 0 | - | 4.91 | 144,922 |
| World's Busiest Airports | 0 | - | 4.94 | 210,517 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,149 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,930,094 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,213 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,569 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,909 |
| Top World Languages | 0 | - | 4.92 | 813,307 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,783 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,494 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,986 |
| Cities by Airports | 0 | - | 4.49 | 87,987 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,300 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,899 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,058 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,962 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,692 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,603 |
| World Currency Quiz | 0 | - | 4.92 | 298,588 |
| Boundary Waters | 0 | - | 4.92 | 88,054 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,822 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,308 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,015 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,794 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,267 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,611 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,492 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,780 |
| Landlocked Countries | 0 | - | 4.99 | 413,734 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,695 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,167 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,653 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,033 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,135 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,438 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,644 |
| Himalayan Countries | 0 | - | 4.95 | 135,409 |
| Andean Countries | 0 | - | 4.94 | 82,842 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,234 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,234 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,925 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,624 |
| Danube Countries | 0 | - | 4.97 | 71,094 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,776 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,547 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,513 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,421 |
| European Landlocked Countries | 0 | - | 4.99 | 145,766 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,227 |
| Countries with the Most Species | 0 | - | 4.99 | 95,247 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,367 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,202 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,372 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,964 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,581 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,957 |
| Countries in the Alps | 0 | - | 4.86 | 116,840 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,818 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,581 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,277 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,019 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,432 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,183 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,011 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,590 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,769 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,345 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,074 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,048 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,460 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,757 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,762 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,097 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,656 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,259 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,779 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,358 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,712 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,610 |
| Largest Countries By Category | 0 | - | 4.97 | 156,780 |
| Countries by Countries | 0 | - | 4.96 | 62,269 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,778 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,718,023 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,722 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,491 |
| Demonyms Quiz | 0 | - | 4.15 | 184,846 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,241 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,447 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,631 |
| Longest International Borders | 0 | - | 4.99 | 263,552 |
| Countries with Three Borders | 0 | - | 4.96 | 36,185 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,606 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,683 |
| Demonym of Every Country | 0 | - | 4.91 | 58,649 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,188 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,423 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,154 |
| Island Countries | 0 | - | 4.99 | 707,675 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,614 |
| Northernmost Countries | 0 | - | 4.99 | 357,790 |
| Countries of South America | 0 | - | 5.00 | 914,974 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,757 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,795 |
| "Land" Countries | 0 | - | 4.98 | 333,682 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,889 |
| Airline Logos | 0 | - | 4.45 | 139,975 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,640 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,122 |
| All Country Flags of the World | 0 | - | 5.00 | 3,603,495 |
| Foods of the World by Description | 0 | - | 4.18 | 45,936 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,167 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,216 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,316 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,711 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,325 |
| Countries with Megacities | 0 | - | 4.99 | 247,072 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,196 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,027 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,618 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,934 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,585 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,027 |
| Cities by Famous Street | 0 | - | 3.96 | 48,247 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,067 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,804 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,971 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,667 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,617 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,652 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,477 |
| Countries by Capital City | 0 | - | 5.00 | 66,684 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,353 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,914 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,475 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,427 |
| Moved Capital Cities | 0 | - | 4.96 | 73,599 |
| Countries by Official Language | 0 | - | 4.95 | 192,800 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,161 |
| Countries in their Native Language | 0 | - | 4.99 | 196,662 |
| Independence from Whom | 0 | - | 4.99 | 209,728 |
| Subdivisions by Country | 0 | - | 4.86 | 50,071 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,782 |
| Megadiverse Countries | 0 | - | 4.97 | 133,909 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,818 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,922 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,431 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,864 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,682 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,011 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,042 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,159 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,219 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,750 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,596 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,432 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,502 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,509 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,689 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,032 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,621 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,342 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,374 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,005 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,963 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,801 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,866 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,073 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,285 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,953 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,343 |
| Widest Countries East to West | 0 | - | 4.92 | 128,615 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,229 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,573 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,698 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,643 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,056 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,052 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,586 |
| Airlines by Country | 0 | - | 4.52 | 134,808 |
| Countries with Double Letters | 0 | - | 4.97 | 93,410 |
| Countries that End in N | 0 | - | 4.94 | 156,899 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,710 |
| Countries with Six Letters | 0 | - | 4.93 | 210,389 |
| Countries with W | 0 | - | 4.97 | 158,240 |
| Countries with Z | 0 | - | 4.98 | 287,903 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,568 |
| Countries That End in U | 0 | - | 4.95 | 119,525 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,585 |
| Countries that End in O | 0 | - | 4.92 | 158,568 |
| Countries that End in R | 0 | - | 4.87 | 118,279 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,862 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,067 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,354 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,506 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,036 |
| Countries That End in Y | 0 | - | 4.90 | 185,214 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,392 |
