| World Capitals Quiz | 0 | - | 5.00 | 5,103,250 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,598,469 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,282 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,940 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,166 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,161 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,065 |
| Countries by Capital City | 0 | - | 5.00 | 69,294 |
| 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 | 84,766 |
| Moved Capital Cities | 0 | - | 4.96 | 74,614 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,787 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,653 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,722 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,395 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,291 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,373 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,667 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,959 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,775 |
| World Capitals by Map | 0 | - | 5.00 | 289,189 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,788 |
| Random Capital to Country | 0 | - | 4.99 | 2,600,710 |
| Random Country to Capital | 0 | - | 4.98 | 927,366 |
| Capitals Starting With H | 0 | - | 4.91 | 93,299 |
| Capitals Starting With K | 0 | - | 4.89 | 84,372 |
| Capitals Starting With M | 0 | - | 4.94 | 109,123 |
| Capitals Starting With P | 0 | - | 4.88 | 78,971 |
| Capitals Starting With R | 0 | - | 4.88 | 82,478 |
| Capitals Starting With S | 0 | - | 4.90 | 86,540 |
| Capitals Starting With T | 0 | - | 4.85 | 76,806 |
| Capitals Starting With W | 0 | - | 4.87 | 91,719 |
| Capitals Starting With A | 0 | - | 4.97 | 129,053 |
| Capitals Starting With B | 0 | - | 4.89 | 119,455 |
| Capitals Starting With D | 0 | - | 4.94 | 97,165 |
| Europe Capital to Country | 0 | - | 4.99 | 251,940 |
| Asia Capital to Country | 0 | - | 4.96 | 127,333 |
| Capital Cities Chain | 0 | - | 4.84 | 83,316 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,888 |
| European Capitals by Map | 0 | - | 4.99 | 141,947 |
| African Capitals by Map | 0 | - | 4.99 | 142,012 |
| Coldest World Capitals | 0 | - | 4.95 | 134,132 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,861 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,805 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,124 |
| 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 | 272,431 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,649 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,135 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,090 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,515 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 68,895 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,719 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,946 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,807 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,979 |
| 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 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,638 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,360 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,839 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.87 | 127,237 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,551 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,445 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,906 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,884 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,731 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,540 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,836 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,297 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,673 |
| Capitals of the Stans | 0 | - | 4.95 | 27,109 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,587 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,280 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 59,066 |
| Top Five Capitals By Category #1 | 0 | - | 4.74 | 82,039 |
| Top Five Capitals By Category #2 | 0 | - | 4.78 | 67,617 |
| Most Expensive Capital Cities | 0 | - | 4.55 | 81,498 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,214 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,622 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,158 |
| Random World Capitals on a Map | 0 | - | 4.93 | 135,645 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,522 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,300 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,830 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,526 |
| National Subdivisions by Capital | 0 | - | 4.37 | 105,591 |
| Capital Cities with the Same Name as Their Country | 0 | - | 4.31 | 75,359 |
| Nearest Capital City #2 | 0 | - | 4.57 | 39,266 |
| Capitals by First and Last Letter | 0 | - | 4.39 | 66,716 |
| World Capitals Ending with O | 0 | - | 4.80 | 18,045 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,351 |
| World Capitals with the Most International Tourists | 0 | - | 4.51 | 53,482 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,795 |
| Capital Closest to the Equator | 0 | - | 4.58 | 15,466 |
| Double Trouble Capital Cities | 0 | - | 4.53 | 22,805 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 76,040 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,981 |
| One Capital by Letter by Continent | 0 | - | 4.99 | 17,540 |
| Capitals Starting With L | 0 | - | 4.80 | 95,570 |
| Capitals Starting With N | 0 | - | 4.80 | 51,868 |
| Capitals Starting With V | 0 | - | 4.80 | 38,628 |
| Capitals Starting With C | 0 | - | 4.78 | 98,928 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,757 |
| 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 | 66,106 |
| Name a Valid World City | 0 | - | 4.85 | 71,929 |
| Cities by Former Name | 0 | - | 4.83 | 92,013 |
| Cities in European History #1 | 0 | - | 4.63 | 134,560 |
| Solve the Secret Capital City | 0 | - | 4.80 | 164,530 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,137 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,475 |
| World Capitals on an Empty Map | 0 | - | 4.69 | 54,532 |
| Capital City Etymologies | 0 | - | 4.77 | 63,508 |
| 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 |
| Top 10 Hottest European Capitals | 0 | - | 4.63 | 33,251 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,340 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,396 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,108 |
| 50 Biggest Cities in 1920 on a World Map | 0 | - | 4.99 | 78,464 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,841 |
| 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 | 67,493 |
| 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 |
| 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 | 47,223 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,767 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,407 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,863 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,365 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,980 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,629 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,530 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,795 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,284 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 86,290 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 491,359 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,205 |
| 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 | 286,025 |
| City-States | 0 | - | 4.53 | 37,392 |
| 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 | 49,252 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,273 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,410 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,002 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,216 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,561 |
| One-Syllable World Capital Cities | 0 | - | 4.35 | 48,081 |
| Hottest Capital Cities | 0 | - | 4.41 | 31,082 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,267 |
| Capital Cities Nearest to Islands | 0 | - | 4.56 | 13,361 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,474 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,499 |
| Capitals by River | 0 | - | 4.55 | 48,384 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,192 |
| World Capitals - One Minute Sprint | 0 | - | 4.21 | 236,565 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,979 |
| The Only Country ... | 0 | - | 4.91 | 81,831 |
| 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 | 96,650 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,276 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,925 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,920 |
| 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 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,196 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,602 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,864 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,975 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,855 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,717 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,768 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,448 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 120,806 |
| Cities by Airports | 0 | - | 4.47 | 103,975 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 67,382 |
| Cities Chain #2 | 0 | - | 4.42 | 56,510 |
| Cities Chain #1 | 0 | - | 4.61 | 66,809 |
| World's Biggest Financial Centers | 0 | - | 4.55 | 73,624 |
| Most-Searched Cities on Wikipedia | 0 | - | 4.42 | 35,343 |
| Name Any Valid U.S. City | 0 | - | 4.49 | 41,126 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,254 |
| Cities By Wikipedia Word Clouds A-Z | 0 | - | 4.78 | 33,302 |
