| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,045 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,934 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,568 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,690 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,984 |
| Random European Capital to Country | 0 | - | 4.98 | 191,932 |
| Random European Country to Capital | 0 | - | 4.93 | 165,722 |
| Europe Capital to Country | 0 | - | 4.99 | 251,746 |
| Asia Capital to Country | 0 | - | 4.96 | 127,263 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,746 |
| European Capitals by Map | 0 | - | 4.99 | 141,675 |
| African Capitals by Map | 0 | - | 4.99 | 141,756 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,747 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,708 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,042 |
| European Coastal Capitals | 0 | - | 4.95 | 91,166 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,102 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,039 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,454 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,089 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,243 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,700 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,092 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,453 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,292 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,493 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,829 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,623 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,507 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,378 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,477 |
| Capitals of the Stans | 0 | - | 4.95 | 27,083 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,247 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,754 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,917 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,324 |
| Random African Capital to Country | 0 | - | 4.97 | 101,191 |
| Random African Country to Capital | 0 | - | 4.95 | 71,658 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,329 |
| Name a City - European Countries | 0 | - | 4.90 | 66,010 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,120 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,179 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,300 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,284 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,527 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,266 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,026 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,311 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,878 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,409 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,190 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,644 |
| Official Cities in the UK | 0 | - | 4.89 | 285,726 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,574 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,676 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,799 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,776 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,689 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,714 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,374 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,912 |
| World Capitals Quiz | 0 | - | 5.00 | 5,098,951 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,573 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,200 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,558 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,576 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,696,930 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,779 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,462 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,454 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,935 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,081 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,449 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,104 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,824 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,293 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,304 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,254 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,007 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,165 |
| Which City in Europe? | 0 | - | 4.83 | 107,794 |
| Byzantine History | 0 | - | 4.91 | 28,997 |
| Byzantine Emperors | 0 | - | 4.93 | 14,527 |
| North American Sports Cities | 0 | - | 4.83 | 173,003 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,515 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,079 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,503 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,833 |
| Name a Valid World City | 0 | - | 4.84 | 71,824 |
| Cities by Former Name | 0 | - | 4.83 | 91,948 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,889 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,631 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,127 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,856 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,914 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,048 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,022 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,920 |
| Countries by Capital City | 0 | - | 5.00 | 69,181 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,718 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,096 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,717 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,686 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,693 |
| Moved Capital Cities | 0 | - | 4.96 | 74,569 |
| World Capitals by Map | 0 | - | 5.00 | 288,863 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,735 |
| Random Capital to Country | 0 | - | 4.99 | 2,599,201 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 201,727 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,449 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,761 |
| Random Country to Capital | 0 | - | 4.98 | 926,293 |
| Capitals Starting With H | 0 | - | 4.91 | 93,167 |
| Capitals Starting With K | 0 | - | 4.88 | 84,237 |
| Capitals Starting With L | 0 | - | 4.79 | 94,234 |
| Capitals Starting With M | 0 | - | 4.93 | 108,874 |
| Capitals Starting With P | 0 | - | 4.88 | 78,826 |
| Capitals Starting With R | 0 | - | 4.88 | 82,372 |
| Capitals Starting With S | 0 | - | 4.90 | 86,400 |
| Capitals Starting With T | 0 | - | 4.85 | 76,697 |
| Capitals Starting With W | 0 | - | 4.87 | 91,636 |
| Capitals Starting With A | 0 | - | 4.97 | 128,885 |
| Capitals Starting With B | 0 | - | 4.89 | 119,284 |
| Capitals Starting With D | 0 | - | 4.93 | 97,032 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,263 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,113 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,841 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,765 |
| US States and State Capitals | 0 | - | 4.99 | 164,829 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,679 |
| Which City in Canada? | 0 | - | 4.83 | 57,294 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,522 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,351 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,548 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,036 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,073 |
| Cities in European History #1 | 0 | - | 4.63 | 134,499 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,671 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,726 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,432 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,857 |
| North America Cities by Map | 0 | - | 4.41 | 47,912 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,938 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,201 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,768 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,178 |
| Random European City to Country | 0 | - | 4.69 | 118,321 |
| Random Asian City to Country | 0 | - | 4.56 | 44,600 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,539 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,385 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,472 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,726 |
| Former Capitals | 0 | - | 4.88 | 71,627 |
| World Capitals Closest to Jerusalem | 0 | - | 4.47 | 45,042 |
| Capital Cities Chain | 0 | - | 4.84 | 83,239 |
| Coldest World Capitals | 0 | - | 4.95 | 134,092 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,032 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,432 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,845 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,385 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,067 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,672 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,043 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,685 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,103 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,811 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,470 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,734 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,769 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,862 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,451 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,249 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 65,021 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,540 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,649 |
| South American Cities on the Map | 0 | - | 4.52 | 35,531 |
| Southeast Asian Cities by Map | 0 | - | 4.63 | 26,789 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,665 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,941 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,151 |
| Random U.S. City to State | 0 | - | 4.45 | 76,794 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,574 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,184 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 48,814 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 49,053 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,265 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,362 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,409 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,694 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,042 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,719 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,822 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.87 | 127,150 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,398 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,828 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,689 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,954 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,482 |
| Random World Capitals on a Map | 0 | - | 4.93 | 135,497 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,176 |
