| Five Most Inland Capital Cities by Continent | 0 | - | 4.90 | 11,894 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,256 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,682 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,560 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,806 |
| World Capitals Quiz | 0 | - | 5.00 | 5,061,554 |
| Europe Capital to Country | 0 | - | 4.99 | 249,489 |
| Asia Capital to Country | 0 | - | 4.96 | 126,428 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,530 |
| European Capitals by Map | 0 | - | 4.99 | 138,468 |
| African Capitals by Map | 0 | - | 4.99 | 133,266 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,034 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,850 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,206 |
| European Coastal Capitals | 0 | - | 4.95 | 90,349 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,485 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,046 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,489 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,721 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,534 |
| Random European Capital to Country | 0 | - | 4.98 | 190,594 |
| Random European Country to Capital | 0 | - | 4.93 | 164,431 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,173 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,570 |
| Random African Capital to Country | 0 | - | 4.97 | 100,468 |
| Random African Country to Capital | 0 | - | 4.94 | 71,071 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,636 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,162 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,296 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,973 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,218 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,867 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,957 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,673 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,059 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,057 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,153 |
| Capitals of the Stans | 0 | - | 4.95 | 26,719 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,887 |
| Countries with Megacities | 0 | - | 4.99 | 256,783 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,755 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,916 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,053 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,918 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,809 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,900 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,215 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,241 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,906 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,544 |
| Countries by Capital City | 0 | - | 5.00 | 67,866 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,938 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,430 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,926 |
| Moved Capital Cities | 0 | - | 4.96 | 74,020 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,871 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,740 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,590 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,538 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,875 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,020 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,032 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,504 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,327 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,641 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,243 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,326 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,887 |
| North American Sports Cities | 0 | - | 4.83 | 171,730 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,221 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,219 |
| Name a City - European Countries | 0 | - | 4.90 | 65,156 |
| Cities by Former Name | 0 | - | 4.83 | 91,408 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,307 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,555 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,188 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,435 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,847 |
| World Capitals by Map | 0 | - | 5.00 | 285,497 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,133 |
| Capitals Starting With H | 0 | - | 4.90 | 91,918 |
| Capitals Starting With K | 0 | - | 4.85 | 76,422 |
| Capitals Starting With L | 0 | - | 4.81 | 87,329 |
| Capitals Starting With M | 0 | - | 4.93 | 106,880 |
| Capitals Starting With P | 0 | - | 4.88 | 77,606 |
| Capitals Starting With R | 0 | - | 4.87 | 81,361 |
| Capitals Starting With S | 0 | - | 4.89 | 85,252 |
| Capitals Starting With T | 0 | - | 4.84 | 75,710 |
| Capitals Starting With W | 0 | - | 4.87 | 90,975 |
| Capitals Starting With A | 0 | - | 4.97 | 127,184 |
| Capitals Starting With B | 0 | - | 4.89 | 117,825 |
| Capitals Starting With D | 0 | - | 4.93 | 95,891 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,475 |
| Olympic Host Countries | 0 | - | 4.98 | 200,278 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,573 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,784 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 307,783 |
| The Only European Country ... | 0 | - | 4.91 | 215,919 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,677 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,723 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,567 |
| Random Capital to Country | 0 | - | 4.99 | 2,587,467 |
| Random Country to Capital | 0 | - | 4.98 | 917,852 |
| Countries of Africa | 0 | - | 5.00 | 2,529,178 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,222 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,264 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,791 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,112 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,933 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,951 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,627 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,888 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,445 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,003 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,061 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,036 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,335 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,486 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,173 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,668 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,944 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,127 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,808 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,614 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,692 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,068 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,047 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,339 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,143 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,421 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,050 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,504 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,370 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,761 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,491 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,776 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,659 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,669 |
| Former Capitals | 0 | - | 4.88 | 71,361 |
| Capital Cities Chain | 0 | - | 4.83 | 82,449 |
| Coldest World Capitals | 0 | - | 4.95 | 133,444 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,367 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,576 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,637 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,883 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,103 |
| Countries of the Middle East | 0 | - | 4.96 | 200,692 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,972 |
| Slavic Countries | 0 | - | 4.96 | 111,467 |
| African Island Countries | 0 | - | 4.96 | 101,396 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,780 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,751 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 46,336 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,747 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,863 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,213 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,622 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,242 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,122 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,805 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,611 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,397 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,496 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,503 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,067 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,945 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,365 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,971 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,949 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,784 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,047 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,578 |
| Boundary Waters | 0 | - | 4.92 | 88,362 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,061 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,878 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,120 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,304 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,363 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,455 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,977 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,593 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,756 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,319 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,006 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,110 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,289 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,555 |
| Unusual U.S. City Names | 0 | - | 4.51 | 27,740 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,503 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,451 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.35 | 44,650 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,814 |
| Ancient City to Country | 0 | - | 4.70 | 107,907 |
| Official Cities in the UK | 0 | - | 4.89 | 282,928 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,134 |
| City-States | 0 | - | 4.53 | 37,223 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,569 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,067 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,617 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,601 |
