| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,831 |
| Countries in World War I | 0 | - | 4.88 | 229,515 |
| Countries in World War II | 0 | - | 4.55 | 920,644 |
| Important Cities in WWII | 0 | - | 4.42 | 94,305 |
| Battle to Country | 0 | - | 4.91 | 54,151 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,367 |
| Cities by Former Name | 0 | - | 4.83 | 92,218 |
| Countries by Percent WWII Deaths | 0 | - | 4.05 | 30,267 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.78 | 78,411 |
| WWII First Names | 0 | - | 4.45 | 42,026 |
| Former Capitals | 0 | - | 4.88 | 71,750 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,513 |
| 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 | 38,087 |
| World Capitals Quiz | 0 | - | 5.00 | 5,116,486 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,586 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,595 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,723 |
| Communist Countries in History | 0 | - | 4.63 | 498,895 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,240 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,961 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,393 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,069 |
| Ancient City to Country | 0 | - | 4.72 | 108,416 |
| City-States | 0 | - | 4.53 | 37,444 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,262 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,866 |
| 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 | 334,602 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,661 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,570 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,295 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,400 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,300 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,627 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,119 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,390 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,517 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,474 |
| Countries by Capital City | 0 | - | 5.00 | 69,710 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,232 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,397 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 85,005 |
| Moved Capital Cities | 0 | - | 4.96 | 74,759 |
| Random Capital to Country | 0 | - | 4.99 | 2,605,042 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,879 |
| Random Country to Capital | 0 | - | 4.98 | 930,756 |
| Independence from Whom | 0 | - | 4.99 | 213,513 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,742 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,949 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,368 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,826 |
| Countries by Founding Story | 0 | - | 4.95 | 77,939 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,610 |
| North American Sports Cities | 0 | - | 4.82 | 173,346 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,617 |
| Cities in European History #1 | 0 | - | 4.63 | 134,922 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,177 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,085 |
| Name a City - European Countries | 0 | - | 4.89 | 66,447 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,802 |
| Name a Valid World City | 0 | - | 4.85 | 72,185 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,999 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,061 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 70,011 |
| World Capitals by Map | 0 | - | 5.00 | 290,136 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,967 |
| Capitals Starting With H | 0 | - | 4.91 | 93,486 |
| Capitals Starting With K | 0 | - | 4.89 | 84,542 |
| Capitals Starting With L | 0 | - | 4.81 | 96,139 |
| Capitals Starting With M | 0 | - | 4.94 | 109,433 |
| Capitals Starting With P | 0 | - | 4.88 | 79,155 |
| Capitals Starting With R | 0 | - | 4.89 | 82,636 |
| Capitals Starting With S | 0 | - | 4.90 | 86,730 |
| Capitals Starting With T | 0 | - | 4.86 | 76,977 |
| Capitals Starting With W | 0 | - | 4.87 | 91,813 |
| Capitals Starting With A | 0 | - | 4.97 | 129,332 |
| Capitals Starting With B | 0 | - | 4.89 | 119,695 |
| Capitals Starting With D | 0 | - | 4.94 | 97,347 |
| Recently Independent Countries | 0 | - | 4.98 | 160,569 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,258 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,193 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,590 |
| Countries by Former Name | 0 | - | 4.99 | 126,022 |
| Historical City to Country | 0 | - | 4.85 | 79,115 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,785 |
| WWII for Dummies | 0 | - | 4.78 | 105,915 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,706 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,319 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,056 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,639 |
| 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 | 73,947 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,909 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,412 |
| Official Cities in the UK | 0 | - | 4.89 | 287,025 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,842 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,733 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,106 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,906 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,421 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,860 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,729 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 24,018 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,965 |
| Europe Capital to Country | 0 | - | 4.99 | 252,704 |
| Asia Capital to Country | 0 | - | 4.96 | 127,740 |
| Capital Cities Chain | 0 | - | 4.84 | 83,565 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,374 |
| European Capitals by Map | 0 | - | 4.99 | 142,677 |
| African Capitals by Map | 0 | - | 4.99 | 142,683 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,828 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,797 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,397 |
| Coldest World Capitals | 0 | - | 4.95 | 134,345 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,165 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,754 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,370 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,180 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,528 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,439 |
| European Coastal Capitals | 0 | - | 4.95 | 91,540 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,915 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,289 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,468 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.88 | 127,577 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,833 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,269 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,699 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,289 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,099 |
| Flags to Capitals #1 | 0 | - | 4.96 | 59,053 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,908 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,739 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 228,218 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,771 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 69,548 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,851 |
| The Only Country ... | 0 | - | 4.91 | 82,111 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,215 |
| Countries with the Most Christians | 0 | - | 4.93 | 145,009 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,695 |
| Orthodox Countries | 0 | - | 4.92 | 133,007 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,640 |
| Monarchies of Europe | 0 | - | 4.90 | 99,076 |
| Monarchies of Asia | 0 | - | 4.97 | 71,641 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,944 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,398 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,818 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,838 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,886 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 58,012 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,330 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 54,379 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,379 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,761 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,625 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,208 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,074 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,065 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,468 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,374 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,622 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,647 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,989 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,350 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,816 |
| 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 | 47,245 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,165 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,118 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,680 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 152,014 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,365 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,518 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,297 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,225 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,838 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,832 |
| 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 | 136,134 |
| Name a Valid European Capital | 0 | - | 4.95 | 154,072 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 90,044 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,346 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,163 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,047 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,529 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,853 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,987 |
| Political Movements by Country | 0 | - | 4.46 | 72,846 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,119 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,020 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,834 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,750 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,108 |
