| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,365 |
| Countries in World War I | 0 | - | 4.88 | 228,462 |
| Countries in World War II | 0 | - | 4.54 | 914,726 |
| Important Cities in WWII | 0 | - | 4.42 | 93,603 |
| Battle to Country | 0 | - | 4.91 | 53,521 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,205 |
| Cities by Former Name | 0 | - | 4.83 | 91,718 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 30,074 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,062 |
| WWII First Names | 0 | - | 4.44 | 41,842 |
| Former Capitals | 0 | - | 4.88 | 71,519 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,962 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,174 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,250 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,899 |
| World Capitals Quiz | 0 | - | 5.00 | 5,083,727 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,392 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,753 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,292 |
| Communist Countries in History | 0 | - | 4.63 | 496,491 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,729 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,590 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,473 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,066 |
| Ancient City to Country | 0 | - | 4.70 | 108,143 |
| City-States | 0 | - | 4.53 | 37,307 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,288 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,718 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,977 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,151 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,123 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,676 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,523 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,185 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,689 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,700 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,542 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,548 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,680 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,489 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,313 |
| Countries by Capital City | 0 | - | 5.00 | 68,638 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,375 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,813 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,410 |
| Moved Capital Cities | 0 | - | 4.96 | 74,344 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,605 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,634 |
| Random Country to Capital | 0 | - | 4.98 | 922,734 |
| Independence from Whom | 0 | - | 4.99 | 212,124 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,747 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,602 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,486 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,647 |
| Countries by Founding Story | 0 | - | 4.95 | 77,382 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,063 |
| North American Sports Cities | 0 | - | 4.83 | 172,643 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,393 |
| Cities in European History #1 | 0 | - | 4.63 | 134,200 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,129 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,547 |
| Name a City - European Countries | 0 | - | 4.90 | 65,615 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,389 |
| Name a Valid World City | 0 | - | 4.83 | 71,457 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,483 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,756 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,392 |
| World Capitals by Map | 0 | - | 5.00 | 287,437 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,472 |
| Capitals Starting With H | 0 | - | 4.91 | 92,722 |
| Capitals Starting With K | 0 | - | 4.88 | 83,768 |
| Capitals Starting With L | 0 | - | 4.81 | 88,250 |
| Capitals Starting With M | 0 | - | 4.93 | 108,067 |
| Capitals Starting With P | 0 | - | 4.88 | 78,345 |
| Capitals Starting With R | 0 | - | 4.87 | 81,976 |
| Capitals Starting With S | 0 | - | 4.90 | 85,953 |
| Capitals Starting With T | 0 | - | 4.84 | 76,304 |
| Capitals Starting With W | 0 | - | 4.86 | 91,395 |
| Capitals Starting With A | 0 | - | 4.97 | 128,291 |
| Capitals Starting With B | 0 | - | 4.89 | 118,707 |
| Capitals Starting With D | 0 | - | 4.93 | 96,625 |
| Recently Independent Countries | 0 | - | 4.98 | 159,480 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,254 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,744 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,319 |
| Countries by Former Name | 0 | - | 4.99 | 125,354 |
| Historical City to Country | 0 | - | 4.84 | 78,636 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,542 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,876 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,537 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,511 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,301 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,914 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,340 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,643 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,413 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,910 |
| Official Cities in the UK | 0 | - | 4.89 | 284,497 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,623 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 110,953 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,190 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,496 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,384 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 131,090 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,939 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,410 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,609 |
| Europe Capital to Country | 0 | - | 4.99 | 250,863 |
| Asia Capital to Country | 0 | - | 4.96 | 126,864 |
| Capital Cities Chain | 0 | - | 4.83 | 82,950 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,197 |
| European Capitals by Map | 0 | - | 4.99 | 139,954 |
| African Capitals by Map | 0 | - | 4.99 | 134,155 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,512 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,561 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,708 |
| Coldest World Capitals | 0 | - | 4.95 | 133,654 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,629 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,208 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,516 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,290 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,021 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,628 |
| European Coastal Capitals | 0 | - | 4.95 | 90,809 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,729 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,669 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,816 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.87 | 126,673 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,524 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,921 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,295 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,770 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,548 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,590 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,519 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 94,238 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,908 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,112 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 67,844 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,404 |
| The Only Country ... | 0 | - | 4.91 | 81,398 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,763 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,597 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,771 |
| Orthodox Countries | 0 | - | 4.92 | 132,247 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,056 |
| Monarchies of Europe | 0 | - | 4.90 | 98,343 |
| Monarchies of Asia | 0 | - | 4.97 | 71,220 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,567 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,511 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,625 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,036 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,430 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,579 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,924 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 53,623 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,015 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,013 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,739 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,369 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,093 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,311 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,896 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,614 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,339 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,594 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,077 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,262 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,489 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,948 |
| Home Cities in History #1 | 0 | - | 4.04 | 16,579 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,172 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,379 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,789 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,491 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,253 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,194 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,013 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,671 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,859 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,241 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,339 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,943 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,391 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,876 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,709 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,502 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,231 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,257 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,798 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,810 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,459 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,377 |
| Political Movements by Country | 0 | - | 4.46 | 72,619 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,335 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,251 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,348 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,073 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,974 |
| Capitals of the Stans | 0 | - | 4.95 | 26,914 |
