| Airport Codes Quiz #1 | 0 | - | 4.81 | 215,107 |
| Busiest Airports in Europe | 0 | - | 4.91 | 146,265 |
| World's Busiest Airports | 0 | - | 4.96 | 233,875 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,923 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,482,688 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,382 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,434 |
| Top World Languages | 0 | - | 4.92 | 822,605 |
| Busiest Airports in the United States | 0 | - | 4.55 | 135,605 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,106 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,995 |
| Cities by Airports | 0 | - | 4.49 | 88,742 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,891 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,567 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,440 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,374 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,920 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,439 |
| World Currency Quiz | 0 | - | 4.92 | 303,274 |
| Boundary Waters | 0 | - | 4.92 | 88,484 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,180 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,131 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,992 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,147 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,786 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,114 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,407 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,337 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,924 |
| Landlocked Countries | 0 | - | 4.99 | 420,806 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,929 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,626 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,207 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,223 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,591 |
| World Capitals Quiz | 0 | - | 5.00 | 5,075,782 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,881 |
| Himalayan Countries | 0 | - | 4.95 | 138,206 |
| Andean Countries | 0 | - | 4.95 | 84,327 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,549 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,434 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,175 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,603 |
| Danube Countries | 0 | - | 4.97 | 71,863 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,836 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,267 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,035 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,498 |
| European Landlocked Countries | 0 | - | 4.99 | 147,004 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,417 |
| Countries with the Most Species | 0 | - | 4.99 | 103,125 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,568 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,523 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,459 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,134 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,529 |
| Countries in the Alps | 0 | - | 4.87 | 118,004 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,078 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,970 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,786 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,560 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,474 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,346 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,849 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,499 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,364 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,097 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,722 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,574 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,431 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,092 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,369 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,391 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,608 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,193 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,715 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,855 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,337 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,752 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,127 |
| Largest Countries By Category | 0 | - | 4.97 | 157,977 |
| Countries by Countries | 0 | - | 4.96 | 63,050 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,228 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,542 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,567 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,592 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,815 |
| Demonyms Quiz | 0 | - | 4.15 | 185,221 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,450 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,658 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,210 |
| Longest International Borders | 0 | - | 4.99 | 264,976 |
| Countries with Three Borders | 0 | - | 4.96 | 36,545 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,031 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,142 |
| Demonym of Every Country | 0 | - | 4.91 | 60,313 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,517 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,587,155 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,134 |
| Island Countries | 0 | - | 4.99 | 710,547 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,263 |
| Northernmost Countries | 0 | - | 4.99 | 361,370 |
| Countries of South America | 0 | - | 5.00 | 925,468 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,549 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,815 |
| "Land" Countries | 0 | - | 4.98 | 336,836 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,241 |
| Airline Logos | 0 | - | 4.45 | 140,800 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,478 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,368 |
| All Country Flags of the World | 0 | - | 5.00 | 3,667,478 |
| Foods of the World by Description | 0 | - | 4.18 | 46,040 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,403 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,317 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,176 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,447 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,566 |
| Countries with Megacities | 0 | - | 4.99 | 263,655 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,400 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,297 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,674 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,336 |
| Biggest Cities in the World | 0 | - | 4.91 | 799,273 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,124 |
| Cities by Famous Street | 0 | - | 3.96 | 48,324 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,135 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,193 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,293 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,438 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,537 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,275 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,064 |
| Countries by Capital City | 0 | - | 5.00 | 68,336 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,201 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,674 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,546 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,234 |
| Moved Capital Cities | 0 | - | 4.96 | 74,232 |
| Countries by Official Language | 0 | - | 4.95 | 194,998 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,028 |
| Countries in their Native Language | 0 | - | 4.99 | 198,505 |
| Independence from Whom | 0 | - | 4.99 | 211,782 |
| Subdivisions by Country | 0 | - | 4.86 | 50,377 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,109 |
| Megadiverse Countries | 0 | - | 4.96 | 134,908 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,853 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,277 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,859 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,067 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,952 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,501 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,269 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,954 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,582 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,047 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,402 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,803 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,117 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,891 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,261 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,426 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,796 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,221 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,840 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,126 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,851 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,851 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,756 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,892 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,194 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,369 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,467 |
| Widest Countries East to West | 0 | - | 4.92 | 129,534 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,420 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,216 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,073 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,658 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,441 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,726 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,325 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,772 |
| Airlines by Country | 0 | - | 4.52 | 135,413 |
| Countries with Double Letters | 0 | - | 4.97 | 95,785 |
| Countries that End in N | 0 | - | 4.95 | 170,733 |
| Countries with Five Letters | 0 | - | 4.96 | 281,796 |
| Countries with Six Letters | 0 | - | 4.94 | 213,145 |
| Countries with W | 0 | - | 4.97 | 160,036 |
| Countries with Z | 0 | - | 4.98 | 290,991 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,375 |
| Countries That End in U | 0 | - | 4.95 | 120,674 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,169 |
| Countries that End in O | 0 | - | 4.92 | 159,396 |
| Countries that End in R | 0 | - | 4.87 | 118,865 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,636 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,774 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,435 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,296 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,944 |
| Countries That End in Y | 0 | - | 4.91 | 185,786 |
