| Airport Codes Quiz #1 | 0 | - | 4.82 | 216,781 |
| Busiest Airports in Europe | 0 | - | 4.91 | 147,096 |
| World's Busiest Airports | 0 | - | 4.96 | 237,523 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,271 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,909,591 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,825 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,923 |
| Top World Languages | 0 | - | 4.92 | 830,303 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,178 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,835 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,438 |
| Cities by Airports | 0 | - | 4.48 | 104,075 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,894 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,922 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,376 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,592 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,123 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,052 |
| World Currency Quiz | 0 | - | 4.92 | 307,013 |
| Boundary Waters | 0 | - | 4.92 | 88,788 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,428 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,743 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,729 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,511 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,150 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,574 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,138 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,004 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,979 |
| Landlocked Countries | 0 | - | 4.99 | 426,347 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,115 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,944 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,044 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,059 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,956 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,661 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,474 |
| Himalayan Countries | 0 | - | 4.93 | 140,426 |
| Andean Countries | 0 | - | 4.94 | 85,568 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,719 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,164 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,279 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,520 |
| Danube Countries | 0 | - | 4.97 | 72,453 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,665 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,886 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,228 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,701 |
| European Landlocked Countries | 0 | - | 4.99 | 147,649 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,366 |
| Countries with the Most Species | 0 | - | 4.99 | 103,593 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,475 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,788 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,904 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,869 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,605 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,054 |
| Countries in the Alps | 0 | - | 4.87 | 118,835 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,318 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,742 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,964 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,995 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,070 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,010 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,299 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,455 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,901 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,453 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,220 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,906 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,769 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,590 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,833 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,928 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,943 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,646 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,031 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,728 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,888 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,254 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,544 |
| Largest Countries By Category | 0 | - | 4.97 | 158,929 |
| Countries by Countries | 0 | - | 4.96 | 63,688 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,420 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,132 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,973 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,500 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,994 |
| Demonyms Quiz | 0 | - | 4.15 | 185,561 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,626 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,200 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,591 |
| Longest International Borders | 0 | - | 4.99 | 265,876 |
| Countries with Three Borders | 0 | - | 4.96 | 36,792 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,378 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,513 |
| Demonym of Every Country | 0 | - | 4.90 | 61,531 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,811 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,416 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,808 |
| Island Countries | 0 | - | 4.99 | 712,709 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,209 |
| Northernmost Countries | 0 | - | 4.99 | 364,207 |
| Countries of South America | 0 | - | 5.00 | 933,224 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,166 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,570 |
| "Land" Countries | 0 | - | 4.98 | 338,503 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,267 |
| Airline Logos | 0 | - | 4.45 | 141,473 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,890 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,617 |
| All Country Flags of the World | 0 | - | 5.00 | 3,717,217 |
| Foods of the World by Description | 0 | - | 4.18 | 46,149 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,741 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,398 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,761 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,651 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,280 |
| Countries with Megacities | 0 | - | 4.99 | 267,361 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,952 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,208 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,269 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,312 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,043 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,186 |
| Cities by Famous Street | 0 | - | 3.96 | 48,382 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,185 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,373 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,422 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,012 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,254 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,289 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,211 |
| Countries by Capital City | 0 | - | 5.00 | 69,471 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,905 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,269 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,051 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,856 |
| Moved Capital Cities | 0 | - | 4.96 | 74,678 |
| Countries by Official Language | 0 | - | 4.95 | 196,081 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,736 |
| Countries in their Native Language | 0 | - | 4.99 | 199,808 |
| Independence from Whom | 0 | - | 4.99 | 213,178 |
| Subdivisions by Country | 0 | - | 4.87 | 50,636 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,534 |
| Megadiverse Countries | 0 | - | 4.96 | 139,533 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,005 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,552 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,737 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,234 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,330 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,878 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,163 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,584 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,104 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,268 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,617 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,407 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,458 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,167 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,600 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,900 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,468 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,745 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,348 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,143 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,607 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,690 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,476 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,590 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,784 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,715 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,815 |
| Widest Countries East to West | 0 | - | 4.92 | 130,761 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,610 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,293 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,529 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,089 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,022 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,513 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,514 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,902 |
| Airlines by Country | 0 | - | 4.52 | 135,871 |
| Countries with Double Letters | 0 | - | 4.96 | 97,177 |
| Countries that End in N | 0 | - | 4.95 | 172,117 |
| Countries with Five Letters | 0 | - | 4.96 | 284,125 |
| Countries with Six Letters | 0 | - | 4.94 | 214,595 |
| Countries with W | 0 | - | 4.96 | 161,025 |
| Countries with Z | 0 | - | 4.98 | 292,562 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,364 |
| Countries That End in U | 0 | - | 4.95 | 121,233 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,179 |
| Countries that End in O | 0 | - | 4.92 | 160,253 |
| Countries that End in R | 0 | - | 4.87 | 119,207 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,975 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,935 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,209 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,871 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,794 |
| Countries That End in Y | 0 | - | 4.91 | 186,105 |
