| European Capitals Ending in N | 0 | - | 4.92 | 81,629 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,338 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,718 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,752 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,563 |
| World Capitals Quiz | 0 | - | 5.00 | 5,099,538 |
| Europe Capital to Country | 0 | - | 4.99 | 251,766 |
| Asia Capital to Country | 0 | - | 4.96 | 127,274 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,759 |
| European Capitals by Map | 0 | - | 4.99 | 141,709 |
| African Capitals by Map | 0 | - | 4.99 | 141,782 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,768 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,719 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,048 |
| European Coastal Capitals | 0 | - | 4.95 | 91,173 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,108 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,087 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,483 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,093 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,979 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,290 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,731 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,103 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,465 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,950 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,588 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,298 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,498 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,834 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,690 |
| Capitals of the Stans | 0 | - | 4.95 | 27,086 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,100 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,512 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,190 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,868 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,064 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,039 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,941 |
| Countries by Capital City | 0 | - | 5.00 | 69,188 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,734 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,110 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,702 |
| Moved Capital Cities | 0 | - | 4.96 | 74,576 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,395 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,767 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,484 |
| Biggest Cities in the World | 0 | - | 4.91 | 804,351 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,350 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,256 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,755 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,988 |
| Random European Capital to Country | 0 | - | 4.98 | 191,947 |
| Random European Country to Capital | 0 | - | 4.93 | 165,729 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,917 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,329 |
| Random African Capital to Country | 0 | - | 4.97 | 101,198 |
| Random African Country to Capital | 0 | - | 4.95 | 71,659 |
| One Capital by Letter by Continent | 0 | - | 4.99 | 17,501 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,692 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,801 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,760 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,031 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,296 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,417 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,636 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,144 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,103 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,821 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,534 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,595 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,119 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,272 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,076 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,382 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,685 |
| North American Sports Cities | 0 | - | 4.83 | 173,015 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,518 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,697,112 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,840 |
| Name a City - European Countries | 0 | - | 4.90 | 66,021 |
| Cities by Former Name | 0 | - | 4.83 | 91,954 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,642 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,923 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,704 |
| World Capitals by Map | 0 | - | 5.00 | 288,908 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,744 |
| Random Capital to Country | 0 | - | 4.99 | 2,599,351 |
| Random Country to Capital | 0 | - | 4.98 | 926,426 |
| Capitals Starting With H | 0 | - | 4.91 | 93,194 |
| Capitals Starting With K | 0 | - | 4.89 | 84,266 |
| Capitals Starting With M | 0 | - | 4.94 | 108,931 |
| Capitals Starting With P | 0 | - | 4.88 | 78,862 |
| Capitals Starting With R | 0 | - | 4.88 | 82,396 |
| Capitals Starting With S | 0 | - | 4.90 | 86,432 |
| Capitals Starting With T | 0 | - | 4.85 | 76,729 |
| Capitals Starting With W | 0 | - | 4.87 | 91,651 |
| Capitals Starting With A | 0 | - | 4.97 | 128,940 |
| Capitals Starting With B | 0 | - | 4.89 | 119,334 |
| Capitals Starting With D | 0 | - | 4.94 | 97,065 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,123 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,183 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,310 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,293 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,536 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,271 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,444 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,484 |
| Largest City by Island | 0 | - | 4.87 | 72,346 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,360 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,045 |
| Megacities on a World Map | 0 | - | 4.98 | 256,498 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,280 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,699 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,544 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,941 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,515 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,302 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,664 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,056 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,213 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,734 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,319 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,779 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,206 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,885 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,549 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,479 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,708 |
| Former Capitals | 0 | - | 4.88 | 71,633 |
| Capital Cities Chain | 0 | - | 4.84 | 83,252 |
| Coldest World Capitals | 0 | - | 4.95 | 134,100 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,038 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,442 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,507 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,691 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,875 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,976 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,377 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,120 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,069 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,435 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,599 |
| Ancient City to Country | 0 | - | 4.70 | 108,285 |
| Official Cities in the UK | 0 | - | 4.89 | 285,765 |
| City-States | 0 | - | 4.53 | 37,376 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,464 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,781 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,191 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,249 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,921 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,200 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,582 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,727 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,277 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 59,055 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,825 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,255 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.87 | 127,159 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,463 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,465 |
| Top Five Capitals By Category #1 | 0 | - | 4.74 | 81,927 |
| Top Five Capitals By Category #2 | 0 | - | 4.78 | 67,543 |
| Most Expensive Capital Cities | 0 | - | 4.55 | 81,451 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,405 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,167 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,834 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,700 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,486 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,945 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,286 |
| The Only Country ... | 0 | - | 4.91 | 81,735 |
| Boundary Waters | 0 | - | 4.92 | 88,712 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,369 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,574 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,176 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,852 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,268 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,933 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,473 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,549 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,262 |
| Unusual U.S. City Names | 0 | - | 4.52 | 27,985 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,574 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,600 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.38 | 53,765 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,190 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,600 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,788 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,714 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,729 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,393 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,974 |
| Random World Capitals on a Map | 0 | - | 4.93 | 135,522 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,189 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,764 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,571 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,007 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,624 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,125 |
| Biggest City by Region | 0 | - | 4.50 | 36,363 |
