| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,589 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,693 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,343 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,751 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,788 |
| World Capitals Quiz | 0 | - | 5.00 | 5,099,669 |
| Europe Capital to Country | 0 | - | 4.99 | 251,776 |
| Asia Capital to Country | 0 | - | 4.96 | 127,275 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,762 |
| European Capitals by Map | 0 | - | 4.99 | 141,727 |
| African Capitals by Map | 0 | - | 4.99 | 141,790 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,768 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,724 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,056 |
| European Coastal Capitals | 0 | - | 4.95 | 91,181 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,113 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,105 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,486 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,094 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,992 |
| Random European Capital to Country | 0 | - | 4.98 | 191,951 |
| Random European Country to Capital | 0 | - | 4.93 | 165,732 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,917 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,330 |
| Random African Capital to Country | 0 | - | 4.97 | 101,202 |
| Random African Country to Capital | 0 | - | 4.95 | 71,661 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,530 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,597,023 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,305 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,746 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,106 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,466 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,953 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,301 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,500 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,835 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,629 |
| Capitals of the Stans | 0 | - | 4.95 | 27,086 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,842 |
| Countries with Megacities | 0 | - | 4.99 | 266,491 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,549 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,940 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,849 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,050 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,105 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,192 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,869 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,068 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,043 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,945 |
| Countries by Capital City | 0 | - | 5.00 | 69,194 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,738 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,110 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,706 |
| Moved Capital Cities | 0 | - | 4.96 | 74,578 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,241 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,435 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,055 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,364 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,516 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,399 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,486 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,694 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,217 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,802 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,534 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,815 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,098 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,497 |
| North American Sports Cities | 0 | - | 4.83 | 173,016 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,519 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,844 |
| Name a City - European Countries | 0 | - | 4.90 | 66,023 |
| Cities by Former Name | 0 | - | 4.83 | 91,957 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,643 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,924 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,257 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,756 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,709 |
| World Capitals by Map | 0 | - | 5.00 | 288,916 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,744 |
| Capitals Starting With H | 0 | - | 4.91 | 93,199 |
| Capitals Starting With K | 0 | - | 4.89 | 84,274 |
| Capitals Starting With M | 0 | - | 4.94 | 108,940 |
| Capitals Starting With P | 0 | - | 4.88 | 78,867 |
| Capitals Starting With R | 0 | - | 4.88 | 82,399 |
| Capitals Starting With S | 0 | - | 4.90 | 86,437 |
| Capitals Starting With T | 0 | - | 4.85 | 76,731 |
| Capitals Starting With W | 0 | - | 4.87 | 91,652 |
| Capitals Starting With A | 0 | - | 4.97 | 128,942 |
| Capitals Starting With B | 0 | - | 4.89 | 119,335 |
| Capitals Starting With D | 0 | - | 4.94 | 97,067 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,447 |
| Olympic Host Countries | 0 | - | 4.98 | 201,724 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,690 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,845 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,894 |
| The Only European Country ... | 0 | - | 4.91 | 218,557 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,602 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,267 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,865 |
| Random Capital to Country | 0 | - | 4.99 | 2,599,397 |
| Random Country to Capital | 0 | - | 4.98 | 926,438 |
| Countries of Africa | 0 | - | 5.00 | 2,554,986 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,303 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,664 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,058 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,214 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,711 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,125 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,183 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,310 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,294 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,538 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,271 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,566 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,261 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,853 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,186 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,535 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,651 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,781 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,138 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,567 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,648 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,792 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,453 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,120 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,467 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,800 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,659 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,738 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,321 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,780 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,210 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,887 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,550 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,483 |
| Former Capitals | 0 | - | 4.88 | 71,634 |
| Capital Cities Chain | 0 | - | 4.84 | 83,255 |
| Coldest World Capitals | 0 | - | 4.95 | 134,100 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,039 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,150 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,445 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,279 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,399 |
| Countries of the Middle East | 0 | - | 4.96 | 202,382 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,014 |
| Slavic Countries | 0 | - | 4.96 | 112,238 |
| African Island Countries | 0 | - | 4.96 | 102,314 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,121 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,171 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 52,766 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,520 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,765 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,685 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,652 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,190 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,420 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,029 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,163 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,355 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,419 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,898 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,682 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,899 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,357 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,149 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,784 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,045 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,013 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,516 |
| Boundary Waters | 0 | - | 4.92 | 88,714 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,371 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,577 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,179 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,853 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,126 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,834 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,495 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,745 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,955 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,772 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,888 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,433 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,736 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,162 |
| Unusual U.S. City Names | 0 | - | 4.52 | 27,986 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,574 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,600 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.38 | 53,768 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,601 |
| Ancient City to Country | 0 | - | 4.70 | 108,286 |
| Official Cities in the UK | 0 | - | 4.89 | 285,783 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,190 |
| City-States | 0 | - | 4.53 | 37,377 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,600 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,464 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,781 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,193 |
