| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,679 |
| Busiest Airports in Europe | 0 | - | 4.91 | 146,044 |
| World's Busiest Airports | 0 | - | 4.96 | 232,512 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,589 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,333,019 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,220 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,092 |
| Top World Languages | 0 | - | 4.92 | 820,194 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,440 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,895 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,566 |
| Places in their Native Language #2 | 0 | - | 4.79 | 133,872 |
| Cities by Airports | 0 | - | 4.49 | 88,648 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,582 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,139 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,839 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,297 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,878 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,217 |
| World Currency Quiz | 0 | - | 4.91 | 301,990 |
| Boundary Waters | 0 | - | 4.92 | 88,377 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,080 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,912 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,843 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,078 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,657 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,991 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,173 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,904 |
| Landlocked Countries | 0 | - | 4.99 | 418,919 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,857 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,499 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,669 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,901 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,487 |
| World Capitals Quiz | 0 | - | 5.00 | 5,063,634 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,991 |
| Himalayan Countries | 0 | - | 4.94 | 137,420 |
| Andean Countries | 0 | - | 4.95 | 83,935 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,229 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,651 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,832 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,349 |
| Danube Countries | 0 | - | 4.97 | 71,662 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,549 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,057 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,651 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,731 |
| European Landlocked Countries | 0 | - | 4.99 | 146,778 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,139 |
| Countries with the Most Species | 0 | - | 4.99 | 102,907 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,264 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,432 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,587 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,302 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,992 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,361 |
| Countries in the Alps | 0 | - | 4.87 | 117,684 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,009 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,133 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,362 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,420 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,979 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,091 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,559 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,284 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,185 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,969 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,550 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,477 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,337 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,924 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,187 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,205 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,182 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,061 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,571 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,529 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,365 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,228 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,998 |
| Largest Countries By Category | 0 | - | 4.97 | 157,635 |
| Countries by Countries | 0 | - | 4.96 | 62,836 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,160 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,321 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,756,789 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,376 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,735 |
| Demonyms Quiz | 0 | - | 4.15 | 185,083 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,390 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,067 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,071 |
| Longest International Borders | 0 | - | 4.99 | 264,658 |
| Countries with Three Borders | 0 | - | 4.96 | 36,452 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,912 |
| Largest Cities for each Latitude Degree | 0 | - | 5.00 | 48,004 |
| Demonym of Every Country | 0 | - | 4.91 | 59,150 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,981 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,881 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,604 |
| Island Countries | 0 | - | 4.99 | 709,746 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,028 |
| Northernmost Countries | 0 | - | 4.99 | 360,459 |
| Countries of South America | 0 | - | 5.00 | 922,891 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,950 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,303 |
| "Land" Countries | 0 | - | 4.98 | 335,789 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,858 |
| Airline Logos | 0 | - | 4.45 | 140,550 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,656 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,041 |
| All Country Flags of the World | 0 | - | 5.00 | 3,649,492 |
| Foods of the World by Description | 0 | - | 4.18 | 46,007 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,345 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,283 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,240 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,731 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,017 |
| Countries with Megacities | 0 | - | 4.99 | 259,816 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,888 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,990 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,168 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,998 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,714 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,090 |
| Cities by Famous Street | 0 | - | 3.96 | 48,306 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,113 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,859 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,971 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,246 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,279 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,975 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,640 |
| Countries by Capital City | 0 | - | 5.00 | 67,931 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,973 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,466 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,665 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,972 |
| Moved Capital Cities | 0 | - | 4.96 | 74,066 |
| Countries by Official Language | 0 | - | 4.95 | 194,641 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,526 |
| Countries in their Native Language | 0 | - | 4.99 | 198,183 |
| Independence from Whom | 0 | - | 4.99 | 211,308 |
| Subdivisions by Country | 0 | - | 4.86 | 50,287 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,701 |
| Megadiverse Countries | 0 | - | 4.96 | 134,765 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,540 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,183 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,754 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,018 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,711 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,380 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,973 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,844 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,487 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,988 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,962 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,714 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,994 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,774 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,150 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,326 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,190 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,030 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,501 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,927 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,636 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,319 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,519 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,671 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,826 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,260 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,284 |
| Widest Countries East to West | 0 | - | 4.92 | 129,374 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,382 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,958 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,991 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,509 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,221 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,545 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,232 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,725 |
| Airlines by Country | 0 | - | 4.52 | 135,246 |
| Countries with Double Letters | 0 | - | 4.97 | 95,088 |
| Countries that End in N | 0 | - | 4.95 | 169,991 |
| Countries with Five Letters | 0 | - | 4.96 | 280,205 |
| Countries with Six Letters | 0 | - | 4.94 | 212,483 |
| Countries with W | 0 | - | 4.97 | 159,519 |
| Countries with Z | 0 | - | 4.98 | 289,797 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,743 |
| Countries That End in U | 0 | - | 4.95 | 120,412 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,753 |
| Countries that End in O | 0 | - | 4.92 | 159,192 |
| Countries that End in R | 0 | - | 4.87 | 118,734 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,511 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,329 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,105 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,079 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,661 |
| Countries That End in Y | 0 | - | 4.90 | 185,647 |
