| Name a Valid European Capital | 0 | - | 4.95 | 152,076 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,289 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.90 | 12,378 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,723 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,919 |
| Asia Capitals Quiz | 0 | - | 4.98 | 691,019 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,550 |
| Random European Capital to Country | 0 | - | 4.98 | 190,633 |
| Random European Country to Capital | 0 | - | 4.93 | 164,620 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,218 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,600 |
| Random African Capital to Country | 0 | - | 4.97 | 100,487 |
| Random African Country to Capital | 0 | - | 4.94 | 71,097 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,792 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,643 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,903 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,477 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,349 |
| Europe Capital to Country | 0 | - | 4.99 | 249,575 |
| Asia Capital to Country | 0 | - | 4.96 | 126,474 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,587 |
| European Capitals by Map | 0 | - | 4.99 | 138,586 |
| African Capitals by Map | 0 | - | 4.99 | 133,367 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,073 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,878 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,240 |
| European Coastal Capitals | 0 | - | 4.95 | 90,391 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,503 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,174 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,557 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,742 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,559 |
| World Capitals Quiz | 0 | - | 5.00 | 5,063,251 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,446 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,095 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,246 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,890 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,993 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,695 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,079 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,093 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,168 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,837 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,055 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,895 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,742 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,902 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,617 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,156 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,050 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,996 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,775 |
| Name a Valid African Country | 0 | - | 4.98 | 153,773 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,358 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,205 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,445 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,075 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,331 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,867 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,836 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,614 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 121,334 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,144 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,699 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,997 |
| Countries with Megacities | 0 | - | 4.99 | 259,305 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,862 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,977 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,151 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,979 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,846 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,961 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,242 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,269 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,969 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,629 |
| Countries by Capital City | 0 | - | 5.00 | 67,919 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,971 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,462 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,644 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,961 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,963 |
| Moved Capital Cities | 0 | - | 4.96 | 74,057 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,025 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,072 |
| Which City in Europe? | 0 | - | 4.83 | 107,172 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,932 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,547 |
| Countries that Beat China | 0 | - | 4.86 | 115,495 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,471 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,496 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,496 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,551 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,411 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,673 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,260 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,368 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,923 |
| Resort Towns by Country | 0 | - | 4.30 | 39,997 |
| North American Sports Cities | 0 | - | 4.83 | 171,752 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,245 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,251 |
| Name a City - European Countries | 0 | - | 4.90 | 65,196 |
| Cities by Former Name | 0 | - | 4.83 | 91,424 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,328 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,576 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,891 |
| World Capitals by Map | 0 | - | 5.00 | 285,613 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,155 |
| Random Capital to Country | 0 | - | 4.99 | 2,588,043 |
| Random Country to Capital | 0 | - | 4.98 | 918,356 |
| Capitals Starting With H | 0 | - | 4.91 | 92,154 |
| Capitals Starting With K | 0 | - | 4.87 | 80,896 |
| Capitals Starting With L | 0 | - | 4.81 | 87,634 |
| Capitals Starting With M | 0 | - | 4.93 | 107,210 |
| Capitals Starting With P | 0 | - | 4.88 | 77,839 |
| Capitals Starting With R | 0 | - | 4.87 | 81,514 |
| Capitals Starting With S | 0 | - | 4.90 | 85,441 |
| Capitals Starting With T | 0 | - | 4.85 | 75,882 |
| Capitals Starting With W | 0 | - | 4.87 | 91,079 |
| Capitals Starting With A | 0 | - | 4.97 | 127,441 |
| Capitals Starting With B | 0 | - | 4.89 | 118,068 |
| Capitals Starting With D | 0 | - | 4.93 | 96,080 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,631 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,557 |
| Olympic Host Countries | 0 | - | 4.98 | 200,365 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,620 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,844 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 308,016 |
| The Only European Country ... | 0 | - | 4.91 | 216,008 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,757 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,781 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,582 |
| Countries of Africa | 0 | - | 5.00 | 2,530,297 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,796 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,107 |
| Which City in Canada? | 0 | - | 4.82 | 56,944 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,631 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,165 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,387 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,497 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,208 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,700 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,968 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,155 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,823 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,667 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,731 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,100 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,076 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,433 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,154 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,435 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,078 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,513 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,415 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,784 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,596 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,826 |
| Random European City to Country | 0 | - | 4.69 | 117,464 |
| Random Asian City to Country | 0 | - | 4.56 | 44,458 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,697 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,696 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,959 |
| Former Capitals | 0 | - | 4.88 | 71,380 |
| Capital Cities Chain | 0 | - | 4.83 | 82,494 |
| Coldest World Capitals | 0 | - | 4.95 | 133,464 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,392 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,682 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,896 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,497 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,187 |
| Countries of the Middle East | 0 | - | 4.96 | 200,749 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,006 |
| Slavic Countries | 0 | - | 4.96 | 111,498 |
| African Island Countries | 0 | - | 4.96 | 101,435 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,790 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,809 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 46,465 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,779 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,902 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,662 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,281 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,183 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,876 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,881 |
| Countries that Start with C | 0 | - | 4.96 | 1,819,186 |
| Countries that Start with D | 0 | - | 4.96 | 707,610 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,831 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,483 |
| Countries that Start with H | 0 | - | 4.96 | 603,069 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,162 |
| Countries that Start with J | 0 | - | 4.98 | 600,923 |
| Countries that Start with K | 0 | - | 4.97 | 814,069 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,884 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,823 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,341 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,394 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,474 |
| Countries that Start with U | 0 | - | 4.97 | 903,365 |
