| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,828 |
| Countries in World War I | 0 | - | 4.88 | 229,510 |
| Countries in World War II | 0 | - | 4.55 | 920,631 |
| Important Cities in WWII | 0 | - | 4.42 | 94,304 |
| Battle to Country | 0 | - | 4.91 | 54,148 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,365 |
| Cities by Former Name | 0 | - | 4.83 | 92,214 |
| Countries by Percent WWII Deaths | 0 | - | 4.05 | 30,266 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.78 | 78,410 |
| WWII First Names | 0 | - | 4.45 | 42,026 |
| Former Capitals | 0 | - | 4.88 | 71,748 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,511 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,633 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,585 |
| World Leaders of the World Wars | 0 | - | 4.36 | 38,086 |
| World Capitals Quiz | 0 | - | 5.00 | 5,116,330 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,580 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,591 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,719 |
| Communist Countries in History | 0 | - | 4.63 | 498,891 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,199 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,961 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,385 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,066 |
| Ancient City to Country | 0 | - | 4.72 | 108,416 |
| City-States | 0 | - | 4.53 | 37,444 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,258 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,865 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,658 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,363 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,589 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,656 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,565 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,295 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,384 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,281 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,623 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,118 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,386 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,512 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,468 |
| Countries by Capital City | 0 | - | 5.00 | 69,708 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,223 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,394 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 85,004 |
| Moved Capital Cities | 0 | - | 4.96 | 74,756 |
| Random Capital to Country | 0 | - | 4.99 | 2,605,002 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,878 |
| Random Country to Capital | 0 | - | 4.98 | 930,694 |
| Independence from Whom | 0 | - | 4.99 | 213,506 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,738 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,948 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,363 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,825 |
| Countries by Founding Story | 0 | - | 4.95 | 77,936 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,609 |
| North American Sports Cities | 0 | - | 4.82 | 173,341 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,617 |
| Cities in European History #1 | 0 | - | 4.63 | 134,913 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,177 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,083 |
| Name a City - European Countries | 0 | - | 4.89 | 66,437 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,802 |
| Name a Valid World City | 0 | - | 4.85 | 72,183 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,999 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,060 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 70,008 |
| World Capitals by Map | 0 | - | 5.00 | 290,118 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,966 |
| Capitals Starting With H | 0 | - | 4.91 | 93,484 |
| Capitals Starting With K | 0 | - | 4.89 | 84,541 |
| Capitals Starting With L | 0 | - | 4.81 | 96,137 |
| Capitals Starting With M | 0 | - | 4.94 | 109,432 |
| Capitals Starting With P | 0 | - | 4.88 | 79,152 |
| Capitals Starting With R | 0 | - | 4.89 | 82,636 |
| Capitals Starting With S | 0 | - | 4.90 | 86,728 |
| Capitals Starting With T | 0 | - | 4.86 | 76,976 |
| Capitals Starting With W | 0 | - | 4.87 | 91,812 |
| Capitals Starting With A | 0 | - | 4.97 | 129,328 |
| Capitals Starting With B | 0 | - | 4.89 | 119,693 |
| Capitals Starting With D | 0 | - | 4.94 | 97,346 |
| Recently Independent Countries | 0 | - | 4.98 | 160,564 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,250 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,191 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,583 |
| Countries by Former Name | 0 | - | 4.99 | 126,017 |
| Historical City to Country | 0 | - | 4.85 | 79,114 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,783 |
| WWII for Dummies | 0 | - | 4.78 | 105,912 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,698 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,300 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,055 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,638 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,314 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,587 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,946 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,907 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,411 |
| Official Cities in the UK | 0 | - | 4.89 | 287,017 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,841 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,731 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,104 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,898 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,421 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,859 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,728 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 24,016 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,964 |
| Europe Capital to Country | 0 | - | 4.99 | 252,700 |
| Asia Capital to Country | 0 | - | 4.96 | 127,739 |
| Capital Cities Chain | 0 | - | 4.84 | 83,561 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,371 |
| European Capitals by Map | 0 | - | 4.99 | 142,670 |
| African Capitals by Map | 0 | - | 4.99 | 142,679 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,809 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,785 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,392 |
| Coldest World Capitals | 0 | - | 4.95 | 134,343 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,159 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,753 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,368 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,179 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,527 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,436 |
| European Coastal Capitals | 0 | - | 4.95 | 91,538 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,915 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,288 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,461 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.88 | 127,574 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,827 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,269 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,698 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,288 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,092 |
| Flags to Capitals #1 | 0 | - | 4.96 | 59,052 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,906 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,737 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 228,215 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,770 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 69,543 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,850 |
| The Only Country ... | 0 | - | 4.91 | 82,109 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,209 |
| Countries with the Most Christians | 0 | - | 4.93 | 145,006 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,693 |
| Orthodox Countries | 0 | - | 4.92 | 133,005 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,639 |
| Monarchies of Europe | 0 | - | 4.90 | 99,072 |
| Monarchies of Asia | 0 | - | 4.97 | 71,640 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,921 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,394 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,814 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,832 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,884 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 58,009 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,327 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 54,378 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,378 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,759 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,615 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,193 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,071 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,063 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,459 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,370 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,619 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,646 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,986 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,350 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,814 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,166 |
| Home Cities in History #1 | 0 | - | 4.04 | 16,622 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,244 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,163 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,118 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,679 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 152,009 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,360 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,517 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,295 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,224 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,837 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,830 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,064 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,554 |
| Random World Capitals on a Map | 0 | - | 4.93 | 136,132 |
| Name a Valid European Capital | 0 | - | 4.95 | 154,070 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 90,042 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,345 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,162 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,043 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,527 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,842 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,985 |
| Political Movements by Country | 0 | - | 4.46 | 72,845 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,115 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,018 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,833 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,745 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,099 |
