| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,640 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,838 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,396 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,294 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,378 |
| World Capitals Quiz | 0 | - | 5.00 | 5,103,280 |
| Europe Capital to Country | 0 | - | 4.99 | 251,948 |
| Asia Capital to Country | 0 | - | 4.96 | 127,333 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,890 |
| European Capitals by Map | 0 | - | 4.99 | 141,948 |
| African Capitals by Map | 0 | - | 4.99 | 142,014 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,861 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,807 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,126 |
| European Coastal Capitals | 0 | - | 4.95 | 91,254 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,156 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,432 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,649 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,136 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,024 |
| Random European Capital to Country | 0 | - | 4.98 | 192,066 |
| Random European Country to Capital | 0 | - | 4.93 | 165,832 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,952 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,380 |
| Random African Capital to Country | 0 | - | 4.97 | 101,286 |
| Random African Country to Capital | 0 | - | 4.95 | 71,716 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,028 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,598,491 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,727 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,985 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,187 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,538 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,049 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,361 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,552 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,906 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,673 |
| Capitals of the Stans | 0 | - | 4.95 | 27,109 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,011 |
| Countries with Megacities | 0 | - | 4.99 | 266,852 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,732 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,038 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,048 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,165 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,215 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,283 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,941 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,167 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,161 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,067 |
| Countries by Capital City | 0 | - | 5.00 | 69,297 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,812 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,181 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,767 |
| Moved Capital Cities | 0 | - | 4.96 | 74,614 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,433 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,414 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,306 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,657 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,623 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,524 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,527 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,722 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,284 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,945 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,610 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,866 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,172 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,564 |
| North American Sports Cities | 0 | - | 4.83 | 173,086 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,548 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,910 |
| Name a City - European Countries | 0 | - | 4.90 | 66,108 |
| Cities by Former Name | 0 | - | 4.83 | 92,015 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,668 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,961 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,351 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,796 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,777 |
| World Capitals by Map | 0 | - | 5.00 | 289,197 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,788 |
| Capitals Starting With H | 0 | - | 4.91 | 93,301 |
| Capitals Starting With K | 0 | - | 4.89 | 84,374 |
| Capitals Starting With M | 0 | - | 4.94 | 109,124 |
| Capitals Starting With P | 0 | - | 4.88 | 78,974 |
| Capitals Starting With R | 0 | - | 4.88 | 82,480 |
| Capitals Starting With S | 0 | - | 4.90 | 86,545 |
| Capitals Starting With T | 0 | - | 4.85 | 76,812 |
| Capitals Starting With W | 0 | - | 4.87 | 91,720 |
| Capitals Starting With A | 0 | - | 4.97 | 129,057 |
| Capitals Starting With B | 0 | - | 4.89 | 119,458 |
| Capitals Starting With D | 0 | - | 4.94 | 97,168 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,634 |
| Olympic Host Countries | 0 | - | 4.98 | 201,881 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,784 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,997 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 313,515 |
| The Only European Country ... | 0 | - | 4.91 | 218,807 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,809 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,412 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,887 |
| Random Capital to Country | 0 | - | 4.99 | 2,600,713 |
| Random Country to Capital | 0 | - | 4.98 | 927,368 |
| Countries of Africa | 0 | - | 5.00 | 2,557,770 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,315 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,705 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,086 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,224 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,796 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,137 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,213 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,340 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,345 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,602 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,295 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,790 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,343 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,886 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,283 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,612 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,715 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,850 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,179 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,640 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,745 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,842 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,492 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,166 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,494 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,841 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,727 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,767 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,410 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,863 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,367 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,982 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,629 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,533 |
| Former Capitals | 0 | - | 4.88 | 71,657 |
| Capital Cities Chain | 0 | - | 4.84 | 83,316 |
| Coldest World Capitals | 0 | - | 4.95 | 134,132 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,091 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,193 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,515 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,095 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,601 |
| Countries of the Middle East | 0 | - | 4.96 | 202,540 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,111 |
| Slavic Countries | 0 | - | 4.96 | 112,316 |
| African Island Countries | 0 | - | 4.96 | 102,391 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,151 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,285 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 52,994 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,602 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,865 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,646 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,754 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,275 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,522 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,112 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,274 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,436 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,475 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,932 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,746 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,983 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,438 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,216 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,842 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,103 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,073 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,845 |
| Boundary Waters | 0 | - | 4.92 | 88,744 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,397 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,652 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,276 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,925 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,307 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,936 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,627 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,822 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,970 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,811 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,941 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,467 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,781 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,207 |
| Unusual U.S. City Names | 0 | - | 4.52 | 28,002 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,580 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,609 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.38 | 53,965 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,647 |
| Ancient City to Country | 0 | - | 4.70 | 108,317 |
| Official Cities in the UK | 0 | - | 4.89 | 286,028 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,196 |
| City-States | 0 | - | 4.53 | 37,392 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,602 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,488 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,799 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,255 |
