| Countries of the Soviet Union | 0 | - | 4.98 | 195,764 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,270 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,721 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,427 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,201 |
| Random European Capital to Country | 0 | - | 4.98 | 192,469 |
| Random European Country to Capital | 0 | - | 4.93 | 166,148 |
| Name a City - European Countries | 0 | - | 4.89 | 66,489 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,668 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,596 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,780 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,466 |
| Former Capitals | 0 | - | 4.88 | 71,754 |
| Europe Capital to Country | 0 | - | 4.99 | 252,766 |
| Asia Capital to Country | 0 | - | 4.96 | 127,768 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,416 |
| European Capitals by Map | 0 | - | 4.99 | 142,773 |
| African Capitals by Map | 0 | - | 4.99 | 142,762 |
| South America Capitals Quiz | 0 | - | 5.00 | 486,016 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,196 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,216 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,469 |
| European Coastal Capitals | 0 | - | 4.95 | 91,573 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,307 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,572 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,920 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,274 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,638 |
| Official Cities in the UK | 0 | - | 4.89 | 287,156 |
| Cities in European History #1 | 0 | - | 4.63 | 134,997 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,916 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,417 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,775 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,549 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,719 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,120 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,876 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,725 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,764 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,831 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,701,501 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,199 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 152,122 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,431 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,584 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,326 |
| World Capitals Quiz | 0 | - | 5.00 | 5,118,320 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,880 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,823 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,969 |
| Name a Valid European Capital | 0 | - | 4.95 | 154,128 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,161 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,640 |
| Random African Capital to Country | 0 | - | 4.97 | 101,559 |
| Random African Country to Capital | 0 | - | 4.94 | 71,944 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,741 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,601 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 146,186 |
| Capitals of the Stans | 0 | - | 4.95 | 27,271 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,303 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,690 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,907 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,965 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,230 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,396 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,481 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,630 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,889 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,489 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,394 |
| Which City in Europe? | 0 | - | 4.83 | 108,056 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,699 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 81,150 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,655 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,523 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,691 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,167 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,446 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,603 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,554 |
| Countries by Capital City | 0 | - | 5.00 | 69,783 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,268 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,442 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,732 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 85,047 |
| Moved Capital Cities | 0 | - | 4.96 | 74,776 |
| Random Capital to Country | 0 | - | 4.99 | 2,605,623 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,894 |
| Random Country to Capital | 0 | - | 4.98 | 931,148 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 90,068 |
| US States and State Capitals | 0 | - | 4.99 | 166,246 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,931 |
| Which City in Canada? | 0 | - | 4.83 | 57,445 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,690 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,957 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,648 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,894 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,764 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,539 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,314 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 49,100 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,088 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,656 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,340 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,600 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,967 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,933 |
| North American Sports Cities | 0 | - | 4.82 | 173,369 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,621 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,734 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,852 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,488 |
| European Cities by Map #1 | 0 | - | 4.69 | 55,934 |
| North America Cities by Map | 0 | - | 4.41 | 47,985 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,978 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,253 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,145 |
| Summer Olympics Host Cities | 0 | - | 4.97 | 216,967 |
| Random European City to Country | 0 | - | 4.69 | 118,589 |
| Random Asian City to Country | 0 | - | 4.56 | 44,656 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,957 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,901 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,127 |
| Cities in Squares on a Map - Europe | 0 | - | 4.70 | 54,672 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,759 |
| Name a Valid World City | 0 | - | 4.85 | 72,211 |
| Cities by Former Name | 0 | - | 4.83 | 92,231 |
| Capitals in their Native Languages | 0 | - | 4.95 | 134,012 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,076 |
| World Capitals Closest to Jerusalem | 0 | - | 4.47 | 45,113 |
| Capital Cities Chain | 0 | - | 4.84 | 83,610 |
| Coldest World Capitals | 0 | - | 4.95 | 134,379 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 70,040 |
| World Capitals by Map | 0 | - | 5.00 | 290,293 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,998 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,312 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,800 |
| Capitals Starting With H | 0 | - | 4.91 | 93,513 |
| Capitals Starting With K | 0 | - | 4.89 | 84,575 |
| Capitals Starting With L | 0 | - | 4.81 | 96,182 |
| Capitals Starting With M | 0 | - | 4.94 | 109,475 |
| Capitals Starting With P | 0 | - | 4.88 | 79,191 |
| Capitals Starting With R | 0 | - | 4.89 | 82,657 |
| Capitals Starting With S | 0 | - | 4.90 | 86,756 |
| Capitals Starting With T | 0 | - | 4.86 | 77,003 |
| Capitals Starting With W | 0 | - | 4.87 | 91,834 |
| Capitals Starting With A | 0 | - | 4.97 | 129,377 |
| Capitals Starting With B | 0 | - | 4.89 | 119,737 |
| Capitals Starting With D | 0 | - | 4.94 | 97,371 |
| Random U.S. State Capitals on a Map | 0 | - | 4.93 | 105,109 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,877 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,800 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,078 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,601 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,446 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,173 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,019 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,426 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,591 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,263 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,713 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,828 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,435 |
| British Places A-Z | 0 | - | 4.29 | 80,166 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 65,095 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,681 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,725 |
| South American Cities on the Map | 0 | - | 4.52 | 35,593 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 152,039 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,136 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,316 |
| Random U.S. City to State | 0 | - | 4.45 | 77,084 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,690 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,531 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 49,170 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 49,212 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,370 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,650 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,499 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 24,041 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,245 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,978 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,923 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.88 | 127,633 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,068 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,561 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,669 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,605 |
| Flags to Capitals #1 | 0 | - | 4.96 | 62,867 |
| Flags to Capitals #2 | 0 | - | 4.95 | 45,192 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,644 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,761 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 228,264 |
| Random World Capitals on a Map | 0 | - | 4.93 | 136,207 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 62,161 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,643 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 90,068 |
| European Cities by Clue | 0 | - | 4.70 | 89,231 |
| The Only Country ... | 0 | - | 4.91 | 82,153 |
| Boroughs of London | 0 | - | 4.63 | 88,765 |
