| Axis Occupied Countries of WWII | 0 | - | 4.99 | 206,461 |
| Countries in World War I | 0 | - | 4.89 | 208,232 |
| Countries in World War II | 0 | - | 4.67 | 801,730 |
| Important Cities in WWII | 0 | - | 4.48 | 82,640 |
| Battle to Country | 0 | - | 4.92 | 34,827 |
| Cities Bombed During WWII | 0 | - | 4.09 | 26,861 |
| Cities by Former Name | 0 | - | 4.85 | 70,192 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.76 | 57,196 |
| WWII First Names | 0 | - | 4.46 | 38,425 |
| Divided World City Name Puzzle #1 | 0 | - | 4.90 | 39,272 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 87,869 |
| World Leaders of the World Wars | 0 | - | 4.40 | 34,177 |
| World Capitals Quiz | 0 | - | 5.00 | 4,459,312 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 113,645 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.86 | 67,140 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 61,331 |
| Communist Countries in History | 0 | - | 4.65 | 451,584 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,369,173 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,072 |
| Name a World Capital A-Z | 0 | - | 4.99 | 139,766 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,883 |
| Ancient City to Country | 0 | - | 4.76 | 100,345 |
| City-States | 0 | - | 4.53 | 34,589 |
| Most Guessed U.S. Cities | 0 | - | 4.90 | 90,383 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.82 | 60,566 |
| City Where It Happened #2 | 0 | - | 4.43 | 49,934 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 220,939 |
| Global Cities on a World Map | 0 | - | 4.93 | 90,684 |
| Africa Capitals Quiz | 0 | - | 4.99 | 627,512 |
| Asia Capitals Quiz | 0 | - | 4.98 | 587,688 |
| Northernmost Capital Cities | 0 | - | 4.98 | 93,021 |
| Most Remote Capital Cities | 0 | - | 4.90 | 43,075 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 33,683 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 89,673 |
| Same Letter Country and Capital | 0 | - | 4.99 | 125,937 |
| Countries by Capital City | 0 | - | 4.99 | 48,253 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 65,276 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 93,019 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 72,183 |
| Moved Capital Cities | 0 | - | 4.94 | 51,905 |
| Random Capital to Country | 0 | - | 4.99 | 2,343,133 |
| Random Country to Capital | 0 | - | 4.98 | 794,826 |
| Independence from Whom | 0 | - | 4.99 | 183,300 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,877 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,616 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,604 |
| Countries that Have Won the Most Battles | 0 | - | 4.07 | 35,823 |
| Countries by Founding Story | 0 | - | 4.92 | 54,125 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,286 |
| Summer Olympic City Bids | 0 | - | 4.93 | 36,784 |
| Important Cities in European History | 0 | - | 4.56 | 109,303 |
| Cities by Founder and Date | 0 | - | 4.55 | 27,820 |
| Damaged and Destroyed Cities | 0 | - | 4.39 | 33,043 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.87 | 90,564 |
| Name a City - European Countries | 0 | - | 4.95 | 51,312 |
| City Where It Happened #1 | 0 | - | 4.28 | 101,631 |
| Former Capitals Quiz | 0 | - | 4.80 | 57,805 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,117 |
| Nearest Capital City #1 | 0 | - | 4.81 | 52,189 |
| World Capitals by Proximity | 0 | - | 4.87 | 284,507 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 48,569 |
| World Capitals by Map | 0 | - | 5.00 | 238,166 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 49,917 |
| World Capitals By Letter - H | 0 | - | 4.84 | 70,753 |
| World Capitals By Letter - K | 0 | - | 4.82 | 65,437 |
| World Capitals By Letter - M | 0 | - | 4.90 | 85,362 |
| World Capitals By Letter - P | 0 | - | 4.85 | 66,567 |
| World Capitals By Letter - R | 0 | - | 4.87 | 71,839 |
| World Capitals By Letter - S | 0 | - | 4.89 | 73,973 |
| World Capitals By Letter - W | 0 | - | 4.88 | 81,719 |
| World Capitals By Letter - A | 0 | - | 4.96 | 103,771 |
| World Capitals By Letter - B | 0 | - | 4.84 | 96,130 |
| World Capitals By Letter - D | 0 | - | 4.91 | 78,402 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,371 |
| Countries of the World in 1900 | 0 | - | 4.88 | 64,866 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 168,685 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 126,158 |
| Countries by Former Name | 0 | - | 4.98 | 92,524 |
| Historical City to Country | 0 | - | 4.82 | 71,865 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 153,743 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 108,844 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,202 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,650 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,332 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,567 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,288 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,138 |
| Official Cities in the UK | 0 | - | 4.87 | 230,133 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 89,217 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.94 | 78,704 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 192,261 |
| Most-Visited Cities in Europe | 0 | - | 4.92 | 55,600 |
| Cities with the Biggest Economies | 0 | - | 4.92 | 117,492 |
| Five Most Guessed Cities by Continent | 0 | - | 4.97 | 104,002 |
| Cities Where Famous People Died | 0 | - | 4.46 | 31,231 |
| Capitals A-Z | 0 | - | 4.84 | 41,545 |
| Europe Capital to Country | 0 | - | 4.99 | 218,133 |
| Asia Capital to Country | 0 | - | 4.96 | 105,028 |
| Capital Cities Chain | 0 | - | 4.86 | 70,865 |
| EU Capitals with No Hints | 0 | - | 4.95 | 123,175 |
| European Capitals by Map | 0 | - | 4.99 | 90,849 |
| African Capitals by Map | 0 | - | 4.99 | 108,967 |
| South America Capitals Quiz | 0 | - | 5.00 | 415,518 |
| North America Capitals Quiz | 0 | - | 4.99 | 184,148 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 51,547 |
| Coldest World Capitals | 0 | - | 4.96 | 127,709 |
| Asian Capitals by Map | 0 | - | 4.98 | 45,989 |
| Top 10 Most Remote European Capitals | 0 | - | 4.84 | 83,642 |
| European Capitals - Map Quiz | 0 | - | 4.98 | 104,261 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.87 | 78,059 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 77,373 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.95 | 71,289 |
| European Coastal Capitals | 0 | - | 4.95 | 76,492 |
| Capital Cities by Body of Water | 0 | - | 4.87 | 53,018 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 46,251 |
| Capitals of Oceania Quiz | 0 | - | 4.98 | 225,185 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.90 | 88,892 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.90 | 191,760 |
| Capitals of Mediterranean Countries | 0 | - | 4.97 | 75,719 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 66,510 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 50,440 |
| Flags to Capitals #1 | 0 | - | 4.97 | 47,579 |
| Flags to Capitals #2 | 0 | - | 4.94 | 35,677 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.85 | 84,487 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.89 | 205,560 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 77,898 |
| European Capitals Ending in N | 0 | - | 4.91 | 73,467 |
| The Only Country ... | 0 | - | 4.87 | 44,968 |
| Countries Settled by Vikings | 0 | - | 4.93 | 110,769 |
| Countries with the Most Christians | 0 | - | 4.93 | 106,114 |
| Countries with the Most Catholics | 0 | - | 4.91 | 91,938 |
| Orthodox Countries | 0 | - | 4.91 | 116,056 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 68,171 |
| Monarchies of Europe | 0 | - | 4.88 | 86,262 |
| Monarchies of Asia | 0 | - | 4.95 | 53,595 |
| Warsaw Pact Countries | 0 | - | 4.85 | 79,813 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 71,549 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.90 | 47,801 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 86,026 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 97,085 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 132,515 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 198,271 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 141,130 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.90 | 91,597 |
| Category Elimination - African Geography #1 | 0 | - | 4.89 | 78,761 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 81,235 |
| Biggest City by Body of Water | 0 | - | 4.52 | 38,804 |
| Global Cities Quiz | 0 | - | 4.64 | 156,325 |
| Southernmost Major Cities | 0 | - | 4.41 | 45,141 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.45 | 68,046 |
| Home Cities in History Quiz #1 | 0 | - | 4.16 | 15,947 |
| Cities with the Most Foreign Embassies | 0 | - | 4.66 | 45,167 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.41 | 34,923 |
| Most Guessed Cities by Country #3 | 0 | - | 4.84 | 18,819 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.58 | 129,950 |
| European Cities with the Biggest Economies | 0 | - | 4.58 | 35,080 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.96 | 91,068 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 71,183 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 61,928 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 73,003 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 63,156 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 47,404 |
| Random World Capitals on a Map | 0 | - | 4.92 | 112,781 |
| Name a Valid European Capital | 0 | - | 4.92 | 103,306 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 79,040 |
| Capital Cities with the Least Precipitation | 0 | - | 4.91 | 27,306 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,895 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 176,660 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 108,648 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 100,675 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,369 |
| Political Movements by Country | 0 | - | 4.47 | 68,193 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 180,007 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 114,820 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,111 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 92,414 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 98,429 |
| The Vietnam War | 0 | - | 4.41 | 32,563 |
| English Monarchs Quiz | 0 | - | 4.91 | 443,123 |
| Lonely Planet Top 200 Cities | 0 | - | 4.66 | 208,982 |
| European Cities A-Z | 0 | - | 4.23 | 70,211 |
| Cities with the Most International Tourists | 0 | - | 4.46 | 49,621 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,515,722 |
| Cities Founded by the French in North America | 0 | - | 4.51 | 38,422 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.96 | 108,183 |
| City to Country - Tile Select #1 | 0 | - | 4.73 | 34,826 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 53,276 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.44 | 49,139 |
| Capitals by First and Last Letter | 0 | - | 4.42 | 63,634 |
| Capitals Based on Last Two Letters | 0 | - | 4.47 | 55,272 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 114,738 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 37,946 |
| Top Five Capitals By Category #1 | 0 | - | 4.58 | 52,769 |
| Top Five Capitals By Category #2 | 0 | - | 4.52 | 45,219 |
| Most Expensive Capital Cities | 0 | - | 4.54 | 71,732 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 76,220 |
| Random African Capitals on a Map | 0 | - | 4.95 | 47,709 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 44,663 |
| Random European Capitals on a Map | 0 | - | 4.97 | 106,030 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 65,740 |
