| Europe Capital to Country | 0 | - | 4.99 | 252,045 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,957 |
| European Capitals by Map | 0 | - | 4.99 | 142,056 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,858 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,172 |
| European Coastal Capitals | 0 | - | 4.95 | 91,297 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,755 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,055 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,575 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,099 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,578 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,700 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,668 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,748 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,914 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,155 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,604 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,554 |
| Asia Capital to Country | 0 | - | 4.96 | 127,381 |
| African Capitals by Map | 0 | - | 4.99 | 142,118 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,895 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,187 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,644 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,816 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,159 |
| Random European Capital to Country | 0 | - | 4.98 | 192,122 |
| Random European Country to Capital | 0 | - | 4.93 | 165,879 |
| Official Cities in the UK | 0 | - | 4.89 | 286,195 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,940 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,159 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,227 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,390 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,939 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,388 |
| Capitals of the Stans | 0 | - | 4.95 | 27,137 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,660 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,428 |
| Name a City - European Countries | 0 | - | 4.90 | 66,161 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,411 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,979 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,412 |
| Random African Capital to Country | 0 | - | 4.97 | 101,336 |
| Random African Country to Capital | 0 | - | 4.95 | 71,742 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,959 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,680 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,451 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,051 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 48,943 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,152 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,485 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,532 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,256 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,365 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 68,984 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,642 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,312 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,369 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,975 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,406 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,396 |
| Cities in European History #1 | 0 | - | 4.63 | 134,602 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 65,035 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,062 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,671 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 227,894 |
| Boroughs of London | 0 | - | 4.63 | 88,544 |
| London Geography | 0 | - | 4.47 | 59,869 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,291 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,458 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,841 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,768 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,952 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,869 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 201,831 |
| UK Immigration by Country | 0 | - | 4.94 | 141,699 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,837 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,975 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,058 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,731 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,285 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,613 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 49,103 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,338 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,967 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,194 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,210 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,126 |
| Countries by Capital City | 0 | - | 5.00 | 69,371 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,843 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,218 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,812 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,804 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,270 |
| Moved Capital Cities | 0 | - | 4.96 | 74,640 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,206 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,989 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,805 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,716 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,317 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,835 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,082 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,193 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,575 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,978 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,419 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,031 |
| Which City in Europe? | 0 | - | 4.83 | 107,882 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,277 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,693 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,029 |
| North American Sports Cities | 0 | - | 4.82 | 173,142 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,556 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,447 |
| European Cities by Map #1 | 0 | - | 4.69 | 55,879 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,951 |
| 20 Northernmost English Cities | 0 | - | 4.49 | 23,888 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,491 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,216 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,941 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,476 |
| Name a Valid World City | 0 | - | 4.85 | 71,971 |
| Cities by Former Name | 0 | - | 4.83 | 92,038 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,680 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,978 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,818 |
| World Capitals by Map | 0 | - | 5.00 | 289,307 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,818 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,355 |
| Random Country to Capital | 0 | - | 4.98 | 927,914 |
| Capitals Starting With H | 0 | - | 4.91 | 93,330 |
| Capitals Starting With K | 0 | - | 4.89 | 84,395 |
| Capitals Starting With M | 0 | - | 4.94 | 109,179 |
| Capitals Starting With P | 0 | - | 4.88 | 79,005 |
| Capitals Starting With R | 0 | - | 4.88 | 82,505 |
| Capitals Starting With S | 0 | - | 4.90 | 86,570 |
| Capitals Starting With T | 0 | - | 4.86 | 76,838 |
| Capitals Starting With W | 0 | - | 4.87 | 91,732 |
| Capitals Starting With A | 0 | - | 4.97 | 129,102 |
| Capitals Starting With B | 0 | - | 4.89 | 119,498 |
| Capitals Starting With D | 0 | - | 4.94 | 97,201 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,593 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,143 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,859 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,786 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,007 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,731 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,680 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,775 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,905 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,455 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,668 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,574 |
| Former Capitals | 0 | - | 4.88 | 71,675 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,939 |
| Capital Cities Chain | 0 | - | 4.84 | 83,357 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,824 |
| Coldest World Capitals | 0 | - | 4.95 | 134,154 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,121 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,558 |
| Which City in Canada? | 0 | - | 4.83 | 57,353 |
| City of Liverpool Quiz | 0 | - | 4.38 | 12,710 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,374 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,658 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,319 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,724 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,108 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,227 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,693 |
| North America Cities by Map | 0 | - | 4.41 | 47,937 |
| Random European City to Country | 0 | - | 4.69 | 118,453 |
| Random Asian City to Country | 0 | - | 4.56 | 44,619 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,833 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,868 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,418 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,219 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,092 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,710 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,074 |
| US States and State Capitals | 0 | - | 4.99 | 165,317 |
| Geography of Rome | 0 | - | 4.51 | 16,712 |
| Paris City Trivia | 0 | - | 4.31 | 35,621 |
| Venice Trivia | 0 | - | 4.45 | 10,494 |
| Milan Trivia | 0 | - | 4.56 | 15,208 |
| Berlin City Trivia | 0 | - | 4.67 | 13,314 |
| Amsterdam Trivia | 0 | - | 4.46 | 15,856 |
| Rome City Trivia | 0 | - | 4.49 | 20,727 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,026 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,691 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,851 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,837 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,596 |
| South American Cities on the Map | 0 | - | 4.52 | 35,549 |
| Southeast Asian Cities by Map | 0 | - | 4.63 | 26,801 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,814 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,192 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,325 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,304 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,471 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,836 |
| World Capitals Closest to Jerusalem | 0 | - | 4.47 | 45,062 |
