| Europe Capital to Country | 0 | - | 4.99 | 252,460 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,200 |
| European Capitals by Map | 0 | - | 4.99 | 142,418 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,066 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,326 |
| European Coastal Capitals | 0 | - | 4.95 | 91,451 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,108 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,149 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,696 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,265 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,646 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,793 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,828 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,657 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,074 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,681 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,872 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,657 |
| Asia Capital to Country | 0 | - | 4.96 | 127,656 |
| African Capitals by Map | 0 | - | 4.99 | 142,495 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,083 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,251 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,133 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,909 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,226 |
| Random European Capital to Country | 0 | - | 4.98 | 192,298 |
| Random European Country to Capital | 0 | - | 4.93 | 166,019 |
| Official Cities in the UK | 0 | - | 4.89 | 286,699 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,452 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,586 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,337 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,460 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,034 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,521 |
| Capitals of the Stans | 0 | - | 4.95 | 27,214 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,755 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,543 |
| Name a City - European Countries | 0 | - | 4.89 | 66,333 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,557 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,071 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,533 |
| Random African Capital to Country | 0 | - | 4.97 | 101,437 |
| Random African Country to Capital | 0 | - | 4.94 | 71,849 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,500 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,703 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,623 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,271 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 49,064 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,193 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,522 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,608 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,308 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,420 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 69,314 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,799 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,367 |
| World Capitals Quiz | 0 | - | 5.00 | 5,111,797 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,306 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,708 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,836 |
| Cities in European History #1 | 0 | - | 4.63 | 134,710 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 65,051 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,215 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,756 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 228,066 |
| Boroughs of London | 0 | - | 4.63 | 88,660 |
| London Geography | 0 | - | 4.47 | 59,901 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,537 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,465 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,944 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,854 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,210 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,339 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 201,926 |
| UK Immigration by Country | 0 | - | 4.94 | 141,847 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,055 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,194 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,179 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,972 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,459 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,651 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 49,160 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,504 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,052 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,300 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,379 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,315 |
| Countries by Capital City | 0 | - | 5.00 | 69,560 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,090 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,319 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,268 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,921 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,287 |
| Moved Capital Cities | 0 | - | 4.96 | 74,710 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,251 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 62,056 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,843 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,836 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,470 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 75,968 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,101 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,543 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,015 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,151 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,561 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,049 |
| Which City in Europe? | 0 | - | 4.83 | 107,974 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,546 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,928 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,264 |
| North American Sports Cities | 0 | - | 4.82 | 173,258 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,590 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,470 |
| European Cities by Map #1 | 0 | - | 4.69 | 55,911 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,961 |
| 20 Northernmost English Cities | 0 | - | 4.49 | 23,897 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,504 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,237 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,026 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,577 |
| Name a Valid World City | 0 | - | 4.85 | 72,097 |
| Cities by Former Name | 0 | - | 4.83 | 92,155 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,967 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,025 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,938 |
| World Capitals by Map | 0 | - | 5.00 | 289,790 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,898 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,471 |
| Random Country to Capital | 0 | - | 4.98 | 929,521 |
| Capitals Starting With H | 0 | - | 4.91 | 93,409 |
| Capitals Starting With K | 0 | - | 4.88 | 84,482 |
| Capitals Starting With L | 0 | - | 4.81 | 96,039 |
| Capitals Starting With M | 0 | - | 4.94 | 109,318 |
| Capitals Starting With P | 0 | - | 4.88 | 79,095 |
| Capitals Starting With R | 0 | - | 4.88 | 82,576 |
| Capitals Starting With S | 0 | - | 4.90 | 86,665 |
| Capitals Starting With T | 0 | - | 4.86 | 76,917 |
| Capitals Starting With W | 0 | - | 4.87 | 91,777 |
| Capitals Starting With A | 0 | - | 4.97 | 129,230 |
| Capitals Starting With B | 0 | - | 4.89 | 119,605 |
| Capitals Starting With D | 0 | - | 4.94 | 97,288 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,651 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,188 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,909 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,812 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,085 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,755 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,813 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,817 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,028 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,705 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,776 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,666 |
| Former Capitals | 0 | - | 4.88 | 71,717 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,964 |
| Capital Cities Chain | 0 | - | 4.84 | 83,486 |
| Solve the Secret Capital City | 0 | - | 4.81 | 164,664 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,909 |
| Coldest World Capitals | 0 | - | 4.95 | 134,234 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,229 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,680 |
| Which City in Canada? | 0 | - | 4.83 | 57,395 |
| City of Liverpool Quiz | 0 | - | 4.38 | 12,722 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,669 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,192 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,333 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,771 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,139 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,238 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,715 |
| North America Cities by Map | 0 | - | 4.41 | 47,969 |
| Random European City to Country | 0 | - | 4.69 | 118,521 |
| Random Asian City to Country | 0 | - | 4.56 | 44,629 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,943 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,885 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,443 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.41 | 32,327 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,272 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,122 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,747 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,094 |
| US States and State Capitals | 0 | - | 4.99 | 165,821 |
| Geography of Rome | 0 | - | 4.51 | 16,721 |
| Paris City Trivia | 0 | - | 4.31 | 35,637 |
| Venice Trivia | 0 | - | 4.45 | 10,499 |
| Milan Trivia | 0 | - | 4.56 | 15,218 |
| Berlin City Trivia | 0 | - | 4.67 | 13,331 |
| Amsterdam Trivia | 0 | - | 4.46 | 15,868 |
| Rome City Trivia | 0 | - | 4.49 | 20,740 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,382 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,219 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 105,050 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,957 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,640 |
| South American Cities on the Map | 0 | - | 4.52 | 35,572 |
| Southeast Asian Cities by Map | 0 | - | 4.63 | 26,812 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,935 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,267 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,444 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,339 |
