| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,444 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,515 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,229 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,056 |
| Asia Capital to Country | 0 | - | 4.96 | 126,174 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,728 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,354 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,822 |
| Capitals of the Stans | 0 | - | 4.95 | 26,603 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,631 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,680 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,785 |
| Name a City - European Countries | 0 | - | 4.91 | 64,834 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,911 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,802 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,506 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,097 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,452 |
| Former Capitals | 0 | - | 4.88 | 71,281 |
| Europe Capital to Country | 0 | - | 4.99 | 248,924 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,149 |
| European Capitals by Map | 0 | - | 4.99 | 137,734 |
| African Capitals by Map | 0 | - | 4.99 | 132,831 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,226 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,602 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,977 |
| European Coastal Capitals | 0 | - | 4.95 | 90,112 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,237 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,788 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,587 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,385 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,619 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,358 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,020 |
| Official Cities in the UK | 0 | - | 4.89 | 282,148 |
| Cities in European History #1 | 0 | - | 4.63 | 133,548 |
| World Capitals Quiz | 0 | - | 5.00 | 5,050,724 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,241 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,978 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,695 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,592 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 81,921 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,994 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,642 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,144 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,029 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,249 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,098 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,736 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,643 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,913 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,791 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,864 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,905 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,351 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,302 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,446 |
| Random European Capital to Country | 0 | - | 4.98 | 189,781 |
| Random European Country to Capital | 0 | - | 4.92 | 148,409 |
| Random African Capital to Country | 0 | - | 4.97 | 100,033 |
| Random African Country to Capital | 0 | - | 4.94 | 70,563 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,347 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,971 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,810 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,463 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,683,077 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,440 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,409 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,600 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,054 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,060 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,322 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,174 |
| Countries by Capital City | 0 | - | 5.00 | 67,480 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,744 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,250 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,730 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,704 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,094 |
| Moved Capital Cities | 0 | - | 4.96 | 73,887 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,885 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,498 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,220 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,137 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,833 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,993 |
| Which City in Europe? | 0 | - | 4.83 | 107,006 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 88,834 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,945 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,331 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,849 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,262 |
| Random Country to Capital | 0 | - | 4.98 | 914,994 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,091 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,424 |
| North American Sports Cities | 0 | - | 4.83 | 171,381 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,034 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,263 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,645 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,841 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,071 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,322 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,040 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,459 |
| Cities by Former Name | 0 | - | 4.84 | 91,265 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,493 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,213 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,448 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,504 |
| World Capitals by Map | 0 | - | 5.00 | 284,810 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,977 |
| Capitals Starting With H | 0 | - | 4.90 | 91,720 |
| Capitals Starting With K | 0 | - | 4.85 | 75,931 |
| Capitals Starting With L | 0 | - | 4.81 | 87,146 |
| Capitals Starting With M | 0 | - | 4.93 | 106,581 |
| Capitals Starting With P | 0 | - | 4.88 | 77,446 |
| Capitals Starting With R | 0 | - | 4.87 | 81,228 |
| Capitals Starting With S | 0 | - | 4.89 | 85,072 |
| Capitals Starting With T | 0 | - | 4.84 | 75,555 |
| Capitals Starting With W | 0 | - | 4.87 | 90,850 |
| Capitals Starting With A | 0 | - | 4.97 | 126,931 |
| Capitals Starting With B | 0 | - | 4.89 | 117,620 |
| Capitals Starting With D | 0 | - | 4.93 | 95,699 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,611 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,903 |
| Which City in Canada? | 0 | - | 4.82 | 56,858 |
| Istanbul City Trivia | 0 | - | 4.24 | 12,366 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,783 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,298 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,789 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,594 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,962 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,674 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,540 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 84,221 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,767 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,025 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,543 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,516 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,435 |
| North America Cities by Map | 0 | - | 4.41 | 47,705 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,543 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,916 |
| Random European City to Country | 0 | - | 4.69 | 116,964 |
| Random Asian City to Country | 0 | - | 4.56 | 44,435 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,105 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,539 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,691 |
| Capital Cities Chain | 0 | - | 4.84 | 82,255 |
| Coldest World Capitals | 0 | - | 4.95 | 133,215 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,137 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,386 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,614 |
| US States and State Capitals | 0 | - | 4.99 | 160,228 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,048 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,351 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,754 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,471 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,422 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,154 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,735 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,140 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,927 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,192 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,113 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,723 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,083 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,149 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,419 |
| South American Cities on the Map | 0 | - | 4.56 | 35,310 |
| Southeast Asian Cities by Map | 0 | - | 4.63 | 26,639 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 150,125 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,754 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,295 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,343 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,966 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 48,598 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,943 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,675 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,279 |
| World Capitals Closest to Jerusalem | 0 | - | 4.47 | 44,869 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,451 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.89 | 125,870 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,238 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 93,944 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,895 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,159 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,139 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,119 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 93,768 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,809 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,805 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,944 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,947 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,089 |
| Asian Capital Superlatives - Top 2 | 0 | - | 4.37 | 28,022 |
| The Only Country ... | 0 | - | 4.91 | 80,446 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,432 |
| Vietnam War Countries | 0 | - | 4.83 | 93,893 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,492 |
