| Europe Capital to Country | 0 | - | 4.99 | 252,040 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,949 |
| European Capitals by Map | 0 | - | 4.99 | 142,043 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,853 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,167 |
| European Coastal Capitals | 0 | - | 4.95 | 91,296 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,750 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,053 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,573 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,092 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,574 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,700 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,635 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,729 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,913 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,144 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,597 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,553 |
| Asia Capital to Country | 0 | - | 4.96 | 127,379 |
| African Capitals by Map | 0 | - | 4.99 | 142,112 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,893 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,186 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,636 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,813 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,157 |
| Random European Capital to Country | 0 | - | 4.98 | 192,120 |
| Random European Country to Capital | 0 | - | 4.93 | 165,873 |
| Official Cities in the UK | 0 | - | 4.89 | 286,186 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,938 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,156 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,220 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,387 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,937 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,387 |
| Capitals of the Stans | 0 | - | 4.95 | 27,136 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,658 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,425 |
| Name a City - European Countries | 0 | - | 4.90 | 66,158 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,407 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,979 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,411 |
| Random African Capital to Country | 0 | - | 4.97 | 101,335 |
| Random African Country to Capital | 0 | - | 4.95 | 71,742 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,945 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,679 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,447 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,045 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 48,941 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,149 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,484 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,531 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,255 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,365 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 68,983 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,641 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,312 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,252 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,970 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,402 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,390 |
| Cities in European History #1 | 0 | - | 4.63 | 134,600 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 65,035 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,054 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,669 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 227,893 |
| Boroughs of London | 0 | - | 4.63 | 88,541 |
| London Geography | 0 | - | 4.47 | 59,869 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,245 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,457 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,839 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,760 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,951 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,867 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 201,830 |
| UK Immigration by Country | 0 | - | 4.94 | 141,698 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,826 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,973 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,057 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,724 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,284 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,612 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 49,102 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,336 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,964 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,191 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,208 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,124 |
| Countries by Capital City | 0 | - | 5.00 | 69,365 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,842 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,214 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,796 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,800 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,270 |
| Moved Capital Cities | 0 | - | 4.96 | 74,637 |
| 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 | 75,803 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,713 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,311 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,834 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,082 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,188 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,555 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,975 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,418 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,030 |
| Which City in Europe? | 0 | - | 4.83 | 107,880 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,271 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,687 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,025 |
| North American Sports Cities | 0 | - | 4.82 | 173,140 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,556 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,446 |
| 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 | 54,475 |
| Name a Valid World City | 0 | - | 4.85 | 71,969 |
| Cities by Former Name | 0 | - | 4.83 | 92,035 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,680 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,975 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,815 |
| World Capitals by Map | 0 | - | 5.00 | 289,292 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,818 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,321 |
| Random Country to Capital | 0 | - | 4.98 | 927,899 |
| Capitals Starting With H | 0 | - | 4.91 | 93,329 |
| Capitals Starting With K | 0 | - | 4.89 | 84,395 |
| Capitals Starting With M | 0 | - | 4.94 | 109,177 |
| Capitals Starting With P | 0 | - | 4.88 | 79,005 |
| Capitals Starting With R | 0 | - | 4.88 | 82,502 |
| Capitals Starting With S | 0 | - | 4.90 | 86,568 |
| Capitals Starting With T | 0 | - | 4.86 | 76,837 |
| Capitals Starting With W | 0 | - | 4.87 | 91,732 |
| Capitals Starting With A | 0 | - | 4.97 | 129,100 |
| Capitals Starting With B | 0 | - | 4.89 | 119,498 |
| Capitals Starting With D | 0 | - | 4.94 | 97,199 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,592 |
| 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 | 72,006 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,731 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,679 |
| 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 | 216,447 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,668 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,573 |
| Former Capitals | 0 | - | 4.88 | 71,675 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,938 |
| Capital Cities Chain | 0 | - | 4.84 | 83,357 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,823 |
| Coldest World Capitals | 0 | - | 4.95 | 134,153 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,118 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,555 |
| 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 | 70,364 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,653 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,319 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,723 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,106 |
| 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 | 118,452 |
| Random Asian City to Country | 0 | - | 4.56 | 44,619 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,828 |
| 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 | 54,709 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,073 |
| US States and State Capitals | 0 | - | 4.99 | 165,310 |
| Geography of Rome | 0 | - | 4.51 | 16,711 |
| 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 | 15,854 |
| Rome City Trivia | 0 | - | 4.49 | 20,727 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,021 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,690 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,848 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,835 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,595 |
| 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 | 49,324 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,304 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,469 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,836 |
| World Capitals Closest to Jerusalem | 0 | - | 4.47 | 45,061 |
