| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,260 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 127,148 |
| Europe Capital to Country | 0 | - | 4.99 | 252,743 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,406 |
| European Capitals by Map | 0 | - | 4.99 | 142,755 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,207 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,457 |
| European Coastal Capitals | 0 | - | 4.95 | 91,562 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,898 |
| Official Cities in the UK | 0 | - | 4.89 | 287,110 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,769 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,414 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,717 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,867 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,188 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 152,095 |
| Name a Valid European Capital | 0 | - | 4.95 | 154,114 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,737 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,652 |
| Cities in European History #1 | 0 | - | 4.63 | 134,982 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,966 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,196 |
| Random European Capital to Country | 0 | - | 4.98 | 192,439 |
| Random European Country to Capital | 0 | - | 4.93 | 166,138 |
| Name a City - European Countries | 0 | - | 4.89 | 66,472 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,582 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,536 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,622 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,585 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,854 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,763 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,449 |
| Former Capitals | 0 | - | 4.88 | 71,751 |
| Asia Capital to Country | 0 | - | 4.96 | 127,757 |
| African Capitals by Map | 0 | - | 4.99 | 142,738 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,958 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,186 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,302 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,544 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,273 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,928 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,858 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,061 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,522 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,865 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,414 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,543 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,115 |
| Countries of the German Empire | 0 | - | 4.51 | 38,329 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,706 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,411 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,557 |
| World Capitals Quiz | 0 | - | 5.00 | 5,117,714 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,877 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,194 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,758 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,821 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,813 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,720 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,701,355 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,286 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,678 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,688 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 49,154 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,752 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,753 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,228 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,560 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,666 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,377 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,474 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,160 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,636 |
| Random African Capital to Country | 0 | - | 4.97 | 101,557 |
| Random African Country to Capital | 0 | - | 4.94 | 71,936 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,879 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,392 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,595 |
| Which City in Europe? | 0 | - | 4.83 | 108,049 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,682 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 105,072 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,697 |
| Byzantine History | 0 | - | 4.91 | 29,066 |
| Byzantine Emperors | 0 | - | 4.93 | 14,674 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,811 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,509 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 65,095 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,602 |
| 20 Northernmost English Cities | 0 | - | 4.49 | 23,903 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,673 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,155 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,428 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,571 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,525 |
| Countries by Capital City | 0 | - | 5.00 | 69,755 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,257 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,422 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,697 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 85,031 |
| Moved Capital Cities | 0 | - | 4.96 | 74,774 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,474 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,478 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 90,062 |
| Which City in Canada? | 0 | - | 4.83 | 57,441 |
| Boroughs of London | 0 | - | 4.63 | 88,754 |
| London Geography | 0 | - | 4.47 | 59,944 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,474 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,619 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 98,029 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,983 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 52,054 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,258 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,172 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,765 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,638 |
| North American Sports Cities | 0 | - | 4.82 | 173,361 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,620 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,486 |
| European Cities by Map #1 | 0 | - | 4.69 | 55,933 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,978 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,251 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,956 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,110 |
| Cities in Squares on a Map - Europe | 0 | - | 4.70 | 54,661 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,864 |
| Cities by Former Name | 0 | - | 4.83 | 92,229 |
| Capitals in their Native Languages | 0 | - | 4.95 | 134,006 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,071 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 70,029 |
| World Capitals by Map | 0 | - | 5.00 | 290,236 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,986 |
| Random Capital to Country | 0 | - | 4.99 | 2,605,414 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 202,040 |
| Random Country to Capital | 0 | - | 4.98 | 931,035 |
| Capitals Starting With H | 0 | - | 4.91 | 93,505 |
| Capitals Starting With K | 0 | - | 4.89 | 84,562 |
| Capitals Starting With L | 0 | - | 4.81 | 96,170 |
| Capitals Starting With M | 0 | - | 4.94 | 109,458 |
| Capitals Starting With P | 0 | - | 4.88 | 79,180 |
| Capitals Starting With R | 0 | - | 4.89 | 82,652 |
| Capitals Starting With S | 0 | - | 4.90 | 86,749 |
| Capitals Starting With T | 0 | - | 4.86 | 76,994 |
| Capitals Starting With W | 0 | - | 4.87 | 91,827 |
| Capitals Starting With A | 0 | - | 4.97 | 129,363 |
| Capitals Starting With B | 0 | - | 4.89 | 119,720 |
| Capitals Starting With D | 0 | - | 4.94 | 97,367 |
| Random U.S. State Capitals on a Map | 0 | - | 4.93 | 105,099 |
| US States and State Capitals | 0 | - | 4.99 | 166,214 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,720 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,753 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,947 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,745 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,574 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,435 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,162 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,016 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,415 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,537 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,306 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,659 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,078 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,650 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,332 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,595 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,963 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,920 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,428 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,679 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,732 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,851 |
| South American Cities on the Map | 0 | - | 4.52 | 35,592 |
| North America Cities by Map | 0 | - | 4.41 | 47,982 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 152,033 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,137 |
| Summer Olympics Host Cities | 0 | - | 4.97 | 216,949 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,310 |
| Random European City to Country | 0 | - | 4.69 | 118,585 |
| Random Asian City to Country | 0 | - | 4.56 | 44,650 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,886 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,525 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 49,207 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,749 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,369 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 24,035 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,972 |
| Capital Cities Chain | 0 | - | 4.84 | 83,590 |
| Coldest World Capitals | 0 | - | 4.95 | 134,373 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,922 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.88 | 127,618 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,602 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,302 |
| Flags to Capitals #1 | 0 | - | 4.96 | 61,504 |
| Flags to Capitals #2 | 0 | - | 4.95 | 45,087 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,753 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 228,258 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 62,154 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,791 |
| The Only Country ... | 0 | - | 4.91 | 82,140 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,652 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,421 |
