| World Capitals Quiz | 0 | - | 5.00 | 5,088,191 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,325 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,592,630 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,406 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,136 |
| Countries with Megacities | 0 | - | 4.99 | 265,133 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,954 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,603 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,216 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,673 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,700 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,655 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,627 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,767 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,625 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,479 |
| Countries by Capital City | 0 | - | 5.00 | 68,768 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,450 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,890 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,482 |
| Moved Capital Cities | 0 | - | 4.96 | 74,403 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,081 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,673 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,856 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,489 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,290 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,461 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,585 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,132 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,019 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,381 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,264 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,636 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,830 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,292 |
| North American Sports Cities | 0 | - | 4.83 | 172,731 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,430 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,652 |
| Name a City - European Countries | 0 | - | 4.90 | 65,766 |
| Name a Valid World City | 0 | - | 4.83 | 71,558 |
| Cities by Former Name | 0 | - | 4.83 | 91,789 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,522 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,799 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,481 |
| World Capitals by Map | 0 | - | 5.00 | 287,819 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,545 |
| Capitals Starting With H | 0 | - | 4.91 | 92,796 |
| Capitals Starting With K | 0 | - | 4.88 | 83,852 |
| Capitals Starting With L | 0 | - | 4.81 | 88,315 |
| Capitals Starting With M | 0 | - | 4.93 | 108,186 |
| Capitals Starting With P | 0 | - | 4.88 | 78,427 |
| Capitals Starting With R | 0 | - | 4.87 | 82,045 |
| Capitals Starting With S | 0 | - | 4.90 | 86,029 |
| Capitals Starting With T | 0 | - | 4.85 | 76,374 |
| Capitals Starting With W | 0 | - | 4.87 | 91,432 |
| Capitals Starting With A | 0 | - | 4.97 | 128,386 |
| Capitals Starting With B | 0 | - | 4.89 | 118,802 |
| Capitals Starting With D | 0 | - | 4.93 | 96,702 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,819 |
| Olympic Host Countries | 0 | - | 4.98 | 201,257 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,191 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,888 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 311,349 |
| The Only European Country ... | 0 | - | 4.91 | 217,706 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,000 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,785 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,769 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,269 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,541 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,965 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,182 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,607 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,468 |
| Random Capital to Country | 0 | - | 4.99 | 2,595,932 |
| Random Country to Capital | 0 | - | 4.98 | 923,731 |
| Countries of Africa | 0 | - | 5.00 | 2,547,521 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,852 |
| Random European Capital to Country | 0 | - | 4.98 | 191,586 |
| Random European Country to Capital | 0 | - | 4.93 | 165,490 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,769 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,078 |
| Random African Capital to Country | 0 | - | 4.97 | 100,989 |
| Random African Country to Capital | 0 | - | 4.94 | 71,465 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,486 |
| Boundary Waters | 0 | - | 4.92 | 88,613 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,287 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,361 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,857 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,691 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,659 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,784 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,960 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,736 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,833 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,247 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,405 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,555 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,021 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,363 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,571 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,341 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,980 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,371 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,675 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,482 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,648 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,069 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,464 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,693 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,537 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,340 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,221 |
| Former Capitals | 0 | - | 4.88 | 71,550 |
| Europe Capital to Country | 0 | - | 4.99 | 251,125 |
| Asia Capital to Country | 0 | - | 4.96 | 126,962 |
| Capital Cities Chain | 0 | - | 4.84 | 83,038 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,363 |
| European Capitals by Map | 0 | - | 4.99 | 140,489 |
| African Capitals by Map | 0 | - | 4.99 | 137,773 |
| Coldest World Capitals | 0 | - | 4.95 | 133,691 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,963 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,394 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,730 |
| European Coastal Capitals | 0 | - | 4.95 | 90,916 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,710 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,162 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,832 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,966 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,828 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,181 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,663 |
| Countries of the Middle East | 0 | - | 4.96 | 201,858 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,688 |
| Slavic Countries | 0 | - | 4.96 | 111,988 |
| African Island Countries | 0 | - | 4.96 | 101,962 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,997 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,784 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 51,326 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,283 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,460 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,338 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,883 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,996 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,746 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,496 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,038 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,107 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,750 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,462 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,546 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,865 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,569 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,431 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,299 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,496 |
| Unusual U.S. City Names | 0 | - | 4.52 | 27,895 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,550 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,562 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.39 | 47,913 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,166 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,590 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,691 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,805 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,897 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,340 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,574 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,388 |
| Ancient City to Country | 0 | - | 4.70 | 108,176 |
| City-States | 0 | - | 4.53 | 37,320 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,383 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,729 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,222 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,747 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,164 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,565 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,257 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 58,997 |
| Top Five Capitals By Category #1 | 0 | - | 4.74 | 81,443 |
| Top Five Capitals By Category #2 | 0 | - | 4.78 | 67,304 |
| Most Expensive Capital Cities | 0 | - | 4.55 | 81,271 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,249 |
| Capitals of the Stans | 0 | - | 4.95 | 26,970 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,513 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,368 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,819 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,444 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,622 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,598 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,966 |
| Official Cities in the UK | 0 | - | 4.89 | 284,868 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,031 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,231 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,646 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,082 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,869 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,790 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,269 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,625 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,096 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,759 |
