| Airport Codes Quiz #1 | 0 | - | 4.82 | 187,784 |
| Europe's Busiest Airports | 0 | - | 4.91 | 131,765 |
| World's Busiest Airports | 0 | - | 4.94 | 187,550 |
| Countries with the Most Airports | 0 | - | 4.96 | 78,943 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,403,761 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,277 |
| Top World Languages | 0 | - | 4.91 | 697,911 |
| Busiest Airports in the United States | 0 | - | 4.55 | 126,048 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 81,932 |
| Places in their Native Language #1 | 0 | - | 4.87 | 208,752 |
| Places in their Native Language #2 | 0 | - | 4.88 | 112,251 |
| Cities by Airports | 0 | - | 4.51 | 80,829 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 97,793 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.96 | 101,801 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 89,682 |
| Busiest Air Routes in the World | 0 | - | 4.52 | 35,094 |
| Airports Named for People #1 | 0 | - | 4.45 | 53,066 |
| Countries by Airline Passengers | 0 | - | 4.91 | 48,801 |
| World Currency Quiz | 0 | - | 4.92 | 244,806 |
| Boundary Waters | 0 | - | 4.93 | 80,417 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 73,717 |
| Lonely Planet Top 200 Cities | 0 | - | 4.66 | 208,881 |
| Cities with the Most International Tourists | 0 | - | 4.46 | 49,588 |
| Largest Countries with Little Tourism | 0 | - | 4.71 | 54,018 |
| Most Hashtagged Cities on Instagram | 0 | - | 4.45 | 32,316 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 94,745 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 75,639 |
| Tourist Route of Europe | 0 | - | 4.22 | 41,706 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.82 | 29,762 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 316,783 |
| U.S. National Parks Map Quiz | 0 | - | 4.51 | 51,527 |
| World Geography on a Map #1 | 0 | - | 4.93 | 66,772 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,051 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,736 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.33 | 91,458 |
| World Capitals Quiz | 0 | - | 5.00 | 4,454,548 |
| Countries on the Equator | 0 | - | 4.82 | 132,024 |
| Members of the Arab League | 0 | - | 4.81 | 58,950 |
| Sahara Desert Countries | 0 | - | 4.97 | 124,967 |
| Himalayan Countries | 0 | - | 4.95 | 102,276 |
| Andean Countries | 0 | - | 4.90 | 56,811 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,638 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,518 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,825 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,488 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,675 |
| Danube Countries | 0 | - | 4.97 | 56,331 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,360 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,569 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,221 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,722 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,318 |
| European Landlocked Countries | 0 | - | 4.99 | 114,807 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,684 |
| Countries with the Most Species | 0 | - | 4.99 | 89,068 |
| Countries 197 to 205 | 0 | - | 4.87 | 55,740 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,412 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,785 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,713 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,076 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,425 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,629 |
| Countries in the Alps | 0 | - | 4.82 | 101,729 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.23 | 76,032 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,546 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,643 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,080 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,647 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,295 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,807 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 88,990 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,710 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,036 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,091 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,856 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,306 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,381 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,895 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,444 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,913 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,421 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,910 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,903 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,309 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,161 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,914 |
| Largest Countries By Category | 0 | - | 4.96 | 143,764 |
| Countries by Countries | 0 | - | 4.96 | 54,004 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,011,318 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,227 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 133,258 |
| Western Europe Map Quiz | 0 | - | 4.86 | 88,793 |
| Demonyms Quiz | 0 | - | 4.12 | 178,437 |
| Who Controls It? #1 | 0 | - | 4.84 | 45,228 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 179,969 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 110,164 |
| Longest International Borders | 0 | - | 4.99 | 232,610 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 35,348 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 39,260 |
| Demonym of Every Country | 0 | - | 4.91 | 48,741 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,367,562 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,280 |
| Island Countries Quiz | 0 | - | 4.99 | 637,773 |
| Biggest Countries by Area | 0 | - | 5.00 | 923,795 |
| Northernmost Countries | 0 | - | 4.99 | 325,128 |
| Countries of South America | 0 | - | 5.00 | 782,560 |
| Countries of Oceania | 0 | - | 5.00 | 880,618 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,103,268 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,548,858 |
| Airline Logos | 0 | - | 4.43 | 126,340 |
| Europe Map Quiz | 0 | - | 5.00 | 4,251,702 |
| Foods of the World Quiz | 0 | - | 4.17 | 44,180 |
| Countries with Three Borders | 0 | - | 4.96 | 30,777 |
| Analogies of Countries #1 | 0 | - | 4.84 | 49,776 |
| Five Letter Geography #4 | 0 | - | 4.83 | 64,949 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,300,972 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,328 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,971 |
| Countries with Megacities | 0 | - | 4.99 | 194,483 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,218 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,738 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,527 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,605 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,757 |
| Biggest Cities in the World | 0 | - | 4.89 | 677,706 |
| Cities by Tourist Attraction #1 | 0 | - | 3.64 | 79,963 |
| Cities by Famous Street | 0 | - | 3.99 | 47,361 |
| Global Cities on a World Map | 0 | - | 4.93 | 90,589 |
| Northernmost Capital Cities | 0 | - | 4.98 | 92,921 |
| Most Remote Capital Cities | 0 | - | 4.90 | 43,002 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 33,629 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 89,566 |
| Same Letter Country and Capital | 0 | - | 4.99 | 125,791 |
| Countries by Capital City | 0 | - | 4.99 | 48,103 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 65,207 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 92,957 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 72,098 |
| Moved Capital Cities | 0 | - | 4.94 | 51,855 |
| Countries by Official Language | 0 | - | 4.95 | 153,329 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,362 |
| Countries in their Native Language | 0 | - | 4.98 | 176,832 |
| Independence from Whom | 0 | - | 4.99 | 182,720 |
| Subdivisions by Country | 0 | - | 4.82 | 46,153 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,733 |
| Megadiverse Countries | 0 | - | 4.96 | 124,651 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,791 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,947 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,092 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 129,937 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,566 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,468 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,245 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,453 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,943 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,746 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,760 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,297 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,458 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,031,515 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,666 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,184 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,022 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 106,962 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,346 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,500 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,789 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,349 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,229 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,773 |
| Widest Countries East to West | 0 | - | 4.93 | 118,612 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,662 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,783 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,070 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,709 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,567 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,438 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,235 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,830 |
| Airlines by Country | 0 | - | 4.51 | 124,529 |
| Countries with Double Letters | 0 | - | 4.96 | 66,454 |
| Countries that End in N | 0 | - | 4.94 | 130,836 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,349 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,200 |
| Countries with W | 0 | - | 4.97 | 121,147 |
| Countries with Z | 0 | - | 4.98 | 241,810 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,308 |
| Countries That End in U | 0 | - | 4.94 | 106,603 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.96 | 88,008 |
| Countries that End in O | 0 | - | 4.92 | 146,222 |
| Countries that End in R | 0 | - | 4.85 | 96,003 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,774 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,350 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,754 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,491 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,417 |
| Countries That End in Y | 0 | - | 4.90 | 160,734 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,500 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,698 |
| Countries that End in I | 0 | - | 4.92 | 114,106 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,281 |
