| Countries of the Soviet Union | 0 | - | 4.98 | 194,197 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,449 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,667 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,560 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,285 |
| Random European Capital to Country | 0 | - | 4.98 | 189,745 |
| Random European Country to Capital | 0 | - | 4.92 | 147,840 |
| Name a City - European Countries | 0 | - | 4.91 | 64,814 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,511 |
| Asia Capitals Quiz | 0 | - | 4.98 | 688,909 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,067 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,421 |
| Former Capitals | 0 | - | 4.88 | 71,274 |
| Europe Capital to Country | 0 | - | 4.99 | 248,845 |
| Asia Capital to Country | 0 | - | 4.96 | 126,150 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,104 |
| European Capitals by Map | 0 | - | 4.99 | 137,671 |
| African Capitals by Map | 0 | - | 4.99 | 132,798 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,107 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,706 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,575 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,947 |
| European Coastal Capitals | 0 | - | 4.95 | 90,091 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,348 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,179 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,740 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,581 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,912 |
| Official Cities in the UK | 0 | - | 4.89 | 282,046 |
| Cities in European History #1 | 0 | - | 4.63 | 133,533 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,141 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,963 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,687 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,486 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 81,914 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,809 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,979 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,037 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,638 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,864 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,682,767 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,618 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,079 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,996 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,226 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,086 |
| World Capitals Quiz | 0 | - | 5.00 | 5,049,652 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,718 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,879 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,346 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,614 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,661 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,767 |
| Random African Capital to Country | 0 | - | 4.97 | 100,009 |
| Random African Country to Capital | 0 | - | 4.94 | 70,540 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,901 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,301 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,819 |
| Capitals of the Stans | 0 | - | 4.95 | 26,594 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,420 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,394 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,335 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,510 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,905 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,490 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,795 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,199 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,820 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,055 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,986 |
| Which City in Europe? | 0 | - | 4.83 | 106,988 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,840 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,873 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,438 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,331 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,555 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,037 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,034 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,290 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,145 |
| Countries by Capital City | 0 | - | 5.00 | 67,442 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,724 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,232 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,676 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,683 |
| Moved Capital Cities | 0 | - | 4.96 | 73,871 |
| Random Capital to Country | 0 | - | 4.99 | 2,583,993 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,093 |
| Random Country to Capital | 0 | - | 4.98 | 914,843 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,599 |
| US States and State Capitals | 0 | - | 4.99 | 160,160 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,888 |
| Which City in Canada? | 0 | - | 4.82 | 56,846 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,438 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,479 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,411 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,225 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,769 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,587 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,944 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,735 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,653 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,523 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,878 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,755 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,009 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,522 |
| North American Sports Cities | 0 | - | 4.83 | 171,360 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,032 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,513 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,424 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,257 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,637 |
| North America Cities by Map | 0 | - | 4.41 | 47,700 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,836 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,066 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,529 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,867 |
| Random European City to Country | 0 | - | 4.69 | 116,946 |
| Random Asian City to Country | 0 | - | 4.56 | 44,430 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,315 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,083 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,021 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,441 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,534 |
| Name a Valid World City | 0 | - | 4.83 | 70,580 |
| Cities by Former Name | 0 | - | 4.84 | 91,244 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,206 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,441 |
| World Capitals Closest to Jerusalem | 0 | - | 4.47 | 44,866 |
| Capital Cities Chain | 0 | - | 4.84 | 82,243 |
| Coldest World Capitals | 0 | - | 4.95 | 133,207 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,476 |
| World Capitals by Map | 0 | - | 5.00 | 284,739 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,956 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,120 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,360 |
| Capitals Starting With H | 0 | - | 4.90 | 91,702 |
| Capitals Starting With K | 0 | - | 4.85 | 75,925 |
| Capitals Starting With L | 0 | - | 4.81 | 87,129 |
| Capitals Starting With M | 0 | - | 4.93 | 106,565 |
| Capitals Starting With P | 0 | - | 4.88 | 77,431 |
| Capitals Starting With R | 0 | - | 4.87 | 81,217 |
| Capitals Starting With S | 0 | - | 4.89 | 85,058 |
| Capitals Starting With T | 0 | - | 4.84 | 75,544 |
| Capitals Starting With W | 0 | - | 4.87 | 90,840 |
| Capitals Starting With A | 0 | - | 4.97 | 126,903 |
| Capitals Starting With B | 0 | - | 4.89 | 117,598 |
| Capitals Starting With D | 0 | - | 4.93 | 95,682 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,603 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,279 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,708 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,586 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,439 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,340 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,014 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,404 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,396 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,201 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,515 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,369 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,894 |
| British Places A-Z | 0 | - | 4.29 | 79,727 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,882 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,141 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,417 |
| South American Cities on the Map | 0 | - | 4.56 | 35,307 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 150,105 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,069 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,750 |
| Random U.S. City to State | 0 | - | 4.45 | 75,648 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,287 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,329 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,948 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 48,587 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,939 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,662 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,672 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,434 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,273 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,423 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.89 | 125,849 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,845 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,233 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 93,939 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,890 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,140 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,129 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,082 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 93,753 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,783 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,774 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,430 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,927 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,926 |
| European Cities by Clue | 0 | - | 4.70 | 88,947 |
| The Only Country ... | 0 | - | 4.91 | 80,418 |
| Boroughs of London | 0 | - | 4.63 | 87,367 |
| London Geography | 0 | - | 4.47 | 59,568 |
| Biggest British Empire Countries | 0 | - | 4.73 | 99,450 |
