| Countries of the World Quiz | 0 | - | 5.00 | 47,595,269 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,413 |
| Top World Languages | 0 | - | 4.92 | 824,475 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,043 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,366 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,310 |
| Busiest Airports in Europe | 0 | - | 4.91 | 146,518 |
| World's Busiest Airports | 0 | - | 4.96 | 234,981 |
| One Border Countries | 0 | - | 4.98 | 469,948 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,056 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,835,313 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,964 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,155 |
| Countries with the Most Airports | 0 | - | 4.96 | 99,404 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,941 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 122,012 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,653 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,105 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,429 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,712 |
| Countries with Two Borders | 0 | - | 4.99 | 149,964 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,505 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,194 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,075 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,523 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,706 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,180 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,791 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,781 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,267 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 215,542 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,133 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,427 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,706 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,743 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,163 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,499 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,615 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,043 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,790 |
| Bordering Countries by HDI Difference | 0 | - | 4.88 | 52,003 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,345 |
| World Currency Quiz | 0 | - | 4.92 | 304,224 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,770 |
| Boundary Waters | 0 | - | 4.92 | 88,579 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,260 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,284 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,524 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,252 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,301 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,888 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,200 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,155 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,471 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 109,068 |
| Random Countries by Borders | 0 | - | 4.99 | 82,649 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,603 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,519 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,941 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,809 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,615 |
| Cities by Airports | 0 | - | 4.49 | 99,061 |
| Landlocked Countries | 0 | - | 4.99 | 422,129 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 92,911 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,112 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,718 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,433 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,444 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,710 |
| World Capitals Quiz | 0 | - | 5.00 | 5,084,090 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,546 |
| Himalayan Countries | 0 | - | 4.94 | 138,811 |
| Andean Countries | 0 | - | 4.93 | 84,654 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,855 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,898 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,480 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,836 |
| Danube Countries | 0 | - | 4.97 | 72,034 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,036 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,441 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,346 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,827 |
| European Landlocked Countries | 0 | - | 4.99 | 147,158 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,678 |
| Countries with the Most Species | 0 | - | 4.99 | 103,259 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,792 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,601 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,729 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,553 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,246 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,681 |
| Countries in the Alps | 0 | - | 4.87 | 118,232 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,139 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,207 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,063 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,669 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,610 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,533 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,959 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,691 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,509 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,190 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,864 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,666 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,533 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,240 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,488 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,544 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,946 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,329 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 63,976 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,113 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,023 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,175 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,249 |
| Largest Countries By Category | 0 | - | 4.97 | 158,241 |
| Countries by Countries | 0 | - | 4.96 | 63,248 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,687 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,779,941 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,726 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,863 |
| Demonyms Quiz | 0 | - | 4.15 | 185,316 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,501 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,035 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,301 |
| Longest International Borders | 0 | - | 4.99 | 265,217 |
| Countries with Three Borders | 0 | - | 4.96 | 36,623 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,134 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,234 |
| Demonym of Every Country | 0 | - | 4.91 | 60,738 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,698 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,874 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,549 |
| Island Countries | 0 | - | 4.99 | 711,106 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,082 |
| Northernmost Countries | 0 | - | 4.99 | 362,031 |
| Countries of South America | 0 | - | 5.00 | 927,582 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,265 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,877,835 |
| "Land" Countries | 0 | - | 4.98 | 337,386 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,712 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,992 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,544 |
| Airline Logos | 0 | - | 4.45 | 140,999 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,055 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,152 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,295 |
| Europe Map Quiz | 0 | - | 5.00 | 4,771,205 |
| All Country Flags of the World | 0 | - | 5.00 | 3,680,371 |
| Foods of the World by Description | 0 | - | 4.18 | 46,067 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,292 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,458 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,337 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,425 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,024 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,934 |
| Countries with Megacities | 0 | - | 4.99 | 264,644 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,770 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,492 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,031 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,565 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,992 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,144 |
| Cities by Famous Street | 0 | - | 3.96 | 48,342 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,148 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,556 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,551 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,554 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,690 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,505 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,325 |
| Countries by Capital City | 0 | - | 5.00 | 68,646 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,380 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,822 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,148 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,419 |
| Moved Capital Cities | 0 | - | 4.96 | 74,351 |
| Countries by Official Language | 0 | - | 4.95 | 195,282 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,414 |
| Countries in their Native Language | 0 | - | 4.99 | 199,071 |
| Independence from Whom | 0 | - | 4.99 | 212,143 |
| Subdivisions by Country | 0 | - | 4.86 | 50,436 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,756 |
| Megadiverse Countries | 0 | - | 4.96 | 135,025 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,120 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,368 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,245 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,111 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,159 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,604 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,495 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,669 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,151 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,697 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,894 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,215 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,971 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,361 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,502 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,228 |
