| Biggest Countries by Population | 0 | - | 5.00 | 1,447,066 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,704 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,019 |
| World Capitals Quiz | 0 | - | 5.00 | 5,079,269 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,769 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,115 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,080 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,243 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,018 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,588,759 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,845 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,262 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,755 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,721 |
| Countries with Megacities | 0 | - | 4.99 | 264,143 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,567 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,384 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,827 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,439 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,330 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,414 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,487 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,599 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,356 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,174 |
| Countries by Capital City | 0 | - | 5.00 | 68,476 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,267 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,745 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,310 |
| Moved Capital Cities | 0 | - | 4.96 | 74,282 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,538 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,781 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,506 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,972 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,825 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,029 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,492 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,642 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,160 |
| North American Sports Cities | 0 | - | 4.83 | 172,524 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,363 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,469 |
| Name a City - European Countries | 0 | - | 4.90 | 65,497 |
| Cities by Former Name | 0 | - | 4.83 | 91,637 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,439 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,713 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,311 |
| World Capitals by Map | 0 | - | 5.00 | 287,100 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,399 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,729 |
| Random European Capital to Country | 0 | - | 4.98 | 191,061 |
| Random European Country to Capital | 0 | - | 4.93 | 165,275 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,534 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,851 |
| Random African Capital to Country | 0 | - | 4.97 | 100,800 |
| Random African Country to Capital | 0 | - | 4.94 | 71,323 |
| Capitals Starting With H | 0 | - | 4.91 | 92,655 |
| Capitals Starting With K | 0 | - | 4.88 | 83,681 |
| Capitals Starting With L | 0 | - | 4.81 | 88,184 |
| Capitals Starting With M | 0 | - | 4.93 | 107,956 |
| Capitals Starting With P | 0 | - | 4.88 | 78,286 |
| Capitals Starting With R | 0 | - | 4.87 | 81,924 |
| Capitals Starting With S | 0 | - | 4.90 | 85,889 |
| Capitals Starting With T | 0 | - | 4.85 | 76,242 |
| Capitals Starting With W | 0 | - | 4.87 | 91,357 |
| Capitals Starting With A | 0 | - | 4.97 | 128,189 |
| Capitals Starting With B | 0 | - | 4.89 | 118,617 |
| Capitals Starting With D | 0 | - | 4.93 | 96,548 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,299 |
| Olympic Host Countries | 0 | - | 4.98 | 200,955 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,975 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,460 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 310,135 |
| The Only European Country ... | 0 | - | 4.91 | 217,031 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,548 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,368 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,706 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,751 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,698 |
| Africa Capitals Quiz | 0 | - | 4.99 | 738,737 |
| Asia Capitals Quiz | 0 | - | 4.98 | 693,936 |
| Random Capital to Country | 0 | - | 4.99 | 2,593,075 |
| Random Country to Capital | 0 | - | 4.98 | 921,713 |
| Countries of Africa | 0 | - | 5.00 | 2,541,151 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,250 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,433 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,914 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,160 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,308 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,163 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,665 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,586 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,025 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,259 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,428 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,941 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,412 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,259 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,840 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,294 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,600 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,340 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,592 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,839 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,082 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,290 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,258 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,998 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,884 |
| Former Capitals | 0 | - | 4.88 | 71,493 |
| Europe Capital to Country | 0 | - | 4.99 | 250,603 |
| Asia Capital to Country | 0 | - | 4.96 | 126,755 |
| Capital Cities Chain | 0 | - | 4.83 | 82,844 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,045 |
| European Capitals by Map | 0 | - | 4.99 | 139,616 |
| African Capitals by Map | 0 | - | 4.99 | 134,041 |
| Coldest World Capitals | 0 | - | 4.95 | 133,609 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,546 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,190 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,531 |
| European Coastal Capitals | 0 | - | 4.95 | 90,709 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,630 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,410 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,270 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,878 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,672 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,010 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,804 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,038 |
| Countries of the Middle East | 0 | - | 4.96 | 201,372 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,429 |
| Slavic Countries | 0 | - | 4.96 | 111,778 |
| African Island Countries | 0 | - | 4.96 | 101,747 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,923 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,435 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 47,239 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,716 |
| Coldest Countries | 0 | - | 4.97 | 138,602 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,712 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,516 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,744 |
| Countries with the Most Nobel Prizes | 0 | - | 4.87 | 90,603 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 82,781 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,024,593 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,043 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,617 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,685 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,486 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,175 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,788 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,859 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,674 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,313 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,317 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,691 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,356 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,268 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,098 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,354 |
| All-Time Winter Olympics Medal Table | 0 | - | 4.46 | 178,228 |
| Boundary Waters | 0 | - | 4.92 | 88,516 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,216 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,190 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,592 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,534 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,115 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,036 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,503 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,231 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,855 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,501 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,409 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,266 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,481 |
| Unusual U.S. City Names | 0 | - | 4.51 | 27,838 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,538 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,527 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.39 | 47,227 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,042 |
| Ancient City to Country | 0 | - | 4.70 | 108,088 |
| Official Cities in the UK | 0 | - | 4.89 | 284,187 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,155 |
| City-States | 0 | - | 4.53 | 37,286 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,576 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,172 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,700 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,881 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,201 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,592 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,131 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,553 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,568 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,245 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 58,957 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,986 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,233 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,574 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,127 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,418 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,922 |
