| Countries of the World Quiz | 0 | - | 5.00 | 46,918,669 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,842 |
| Top World Languages | 0 | - | 4.92 | 813,138 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,142 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,329 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,463 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,976 |
| Busiest Airports in Europe | 0 | - | 4.91 | 144,901 |
| World's Busiest Airports | 0 | - | 4.94 | 210,432 |
| One Border Countries | 0 | - | 4.98 | 464,367 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,204 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,801,089 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,693 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,272 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,124 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,867 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,005 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,593 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,540 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,278 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,986 |
| Countries with Two Borders | 0 | - | 4.99 | 146,639 |
| Countries by Borders #2 | 0 | - | 4.96 | 135,449 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,263 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,209 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 114,702 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,173 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,514 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,560 |
| Bordering Countries Forming Words #2 | 0 | - | 4.96 | 32,583 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,419 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,066 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,777 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,958 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,144 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,336 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,933 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,592 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,587 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,110 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 138,894 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,672 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,348 |
| World Currency Quiz | 0 | - | 4.92 | 298,477 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,382 |
| Boundary Waters | 0 | - | 4.92 | 88,042 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,816 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,285 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,935 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,007 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,786 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,257 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,603 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,674 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 86,617 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,186 |
| Random Countries by Borders | 0 | - | 4.99 | 81,674 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,473 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,780 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,771 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,962 |
| Cities by Airports | 0 | - | 4.49 | 87,799 |
| Landlocked Countries | 0 | - | 4.99 | 413,599 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 92,312 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,192 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,979 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,162 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,619 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,985 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,129 |
| World Capitals Quiz | 0 | - | 5.00 | 5,031,365 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,578 |
| Himalayan Countries | 0 | - | 4.95 | 135,345 |
| Andean Countries | 0 | - | 4.94 | 82,822 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,208 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,204 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,896 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,606 |
| Danube Countries | 0 | - | 4.97 | 71,080 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,763 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,538 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,477 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,393 |
| European Landlocked Countries | 0 | - | 4.99 | 145,751 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,211 |
| Countries with the Most Species | 0 | - | 4.99 | 95,241 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,337 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,369 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,957 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,576 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,951 |
| Countries in the Alps | 0 | - | 4.86 | 116,820 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,814 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,561 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,252 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,004 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,418 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,158 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,002 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,574 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,745 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,288 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,047 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,194 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,041 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,453 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,747 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,751 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,059 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,639 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,253 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,768 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,281 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,671 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,600 |
| Largest Countries By Category | 0 | - | 4.97 | 156,757 |
| Countries by Countries | 0 | - | 4.96 | 62,255 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,762 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,527 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,712 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,485 |
| Demonyms Quiz | 0 | - | 4.15 | 184,835 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,232 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,410 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,618 |
| Longest International Borders | 0 | - | 4.99 | 263,543 |
| Countries with Three Borders | 0 | - | 4.96 | 36,180 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,599 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,667 |
| Demonym of Every Country | 0 | - | 4.91 | 58,643 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,924 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,072 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,111 |
| Island Countries | 0 | - | 4.99 | 707,618 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,428 |
| Northernmost Countries | 0 | - | 4.99 | 357,715 |
| Countries of South America | 0 | - | 5.00 | 914,706 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,398 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,278 |
| "Land" Countries | 0 | - | 4.98 | 333,650 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,050 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,689 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,866 |
| Airline Logos | 0 | - | 4.45 | 139,946 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,287 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,381 |
| Borders of One Border Countries | 0 | - | 4.14 | 85,946 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,407 |
| All Country Flags of the World | 0 | - | 5.00 | 3,602,070 |
| Foods of the World by Description | 0 | - | 4.18 | 45,936 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,163 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,213 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,048 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,631 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,201 |
| Countries with Megacities | 0 | - | 4.99 | 246,889 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,109 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,962 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,520 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,851 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,380 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,026 |
| Cities by Famous Street | 0 | - | 3.96 | 48,245 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,064 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,763 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,951 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,655 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,605 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,625 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,449 |
| Countries by Capital City | 0 | - | 5.00 | 66,651 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,335 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,906 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,405 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,409 |
| Moved Capital Cities | 0 | - | 4.96 | 73,587 |
| Countries by Official Language | 0 | - | 4.95 | 192,767 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,128 |
| Countries in their Native Language | 0 | - | 4.99 | 196,634 |
| Independence from Whom | 0 | - | 4.99 | 209,687 |
| Subdivisions by Country | 0 | - | 4.86 | 50,064 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,745 |
| Megadiverse Countries | 0 | - | 4.97 | 133,901 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,800 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,918 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,427 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,859 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,655 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,998 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,010 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,212 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,743 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,568 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,414 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,493 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,503 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,673 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,024 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,581 |
