| World Capitals Quiz | 0 | - | 5.00 | 5,086,863 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,101 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,592,040 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,387 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,063 |
| Countries with Megacities | 0 | - | 4.99 | 264,962 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,888 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,570 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,154 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,641 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,653 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,619 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,603 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,737 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,579 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,435 |
| Countries by Capital City | 0 | - | 5.00 | 68,723 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,422 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,866 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,456 |
| Moved Capital Cities | 0 | - | 4.96 | 74,392 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,022 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,665 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,799 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,106 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,203 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,361 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,572 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,114 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,998 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,332 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,243 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,612 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,798 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,272 |
| North American Sports Cities | 0 | - | 4.83 | 172,706 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,423 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,628 |
| Name a City - European Countries | 0 | - | 4.90 | 65,718 |
| Name a Valid World City | 0 | - | 4.83 | 71,532 |
| Cities by Former Name | 0 | - | 4.83 | 91,769 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,514 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,783 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,459 |
| World Capitals by Map | 0 | - | 5.00 | 287,658 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,519 |
| Capitals Starting With H | 0 | - | 4.91 | 92,770 |
| Capitals Starting With K | 0 | - | 4.88 | 83,822 |
| Capitals Starting With L | 0 | - | 4.81 | 88,289 |
| Capitals Starting With M | 0 | - | 4.93 | 108,140 |
| Capitals Starting With P | 0 | - | 4.88 | 78,400 |
| Capitals Starting With R | 0 | - | 4.87 | 82,018 |
| Capitals Starting With S | 0 | - | 4.90 | 86,005 |
| Capitals Starting With T | 0 | - | 4.85 | 76,353 |
| Capitals Starting With W | 0 | - | 4.87 | 91,422 |
| Capitals Starting With A | 0 | - | 4.97 | 128,356 |
| Capitals Starting With B | 0 | - | 4.89 | 118,771 |
| Capitals Starting With D | 0 | - | 4.93 | 96,676 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,712 |
| Olympic Host Countries | 0 | - | 4.98 | 201,212 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,159 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,814 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 311,157 |
| The Only European Country ... | 0 | - | 4.91 | 217,596 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,916 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,710 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,758 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,266 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,522 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,961 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,179 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,265 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,213 |
| Random Capital to Country | 0 | - | 4.99 | 2,595,508 |
| Random Country to Capital | 0 | - | 4.98 | 923,424 |
| Countries of Africa | 0 | - | 5.00 | 2,546,691 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,829 |
| Random European Capital to Country | 0 | - | 4.98 | 191,550 |
| Random European Country to Capital | 0 | - | 4.93 | 165,468 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,748 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,055 |
| Random African Capital to Country | 0 | - | 4.97 | 100,969 |
| Random African Country to Capital | 0 | - | 4.94 | 71,435 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,458 |
| Boundary Waters | 0 | - | 4.92 | 88,607 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,276 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,333 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,816 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,667 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,628 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,664 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,929 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,727 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,795 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,216 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,378 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,540 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,014 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,312 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,557 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,329 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,956 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,361 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,665 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,451 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,642 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,032 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,400 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,617 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,479 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,315 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,148 |
| Former Capitals | 0 | - | 4.88 | 71,539 |
| Europe Capital to Country | 0 | - | 4.99 | 251,044 |
| Asia Capital to Country | 0 | - | 4.96 | 126,919 |
| Capital Cities Chain | 0 | - | 4.84 | 83,011 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,287 |
| European Capitals by Map | 0 | - | 4.99 | 140,184 |
| African Capitals by Map | 0 | - | 4.99 | 134,283 |
| Coldest World Capitals | 0 | - | 4.95 | 133,679 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,713 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,351 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,692 |
| European Coastal Capitals | 0 | - | 4.95 | 90,878 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,698 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,054 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,726 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,945 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,810 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,165 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,553 |
| Countries of the Middle East | 0 | - | 4.96 | 201,799 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,648 |
| Slavic Countries | 0 | - | 4.96 | 111,956 |
| African Island Countries | 0 | - | 4.96 | 101,928 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,983 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,730 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 50,750 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,264 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,428 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,309 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,853 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,934 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,708 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,443 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,996 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,092 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,738 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,440 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,503 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,834 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,542 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,408 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,283 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,469 |
| Unusual U.S. City Names | 0 | - | 4.52 | 27,889 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,549 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,553 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.39 | 47,854 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,166 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,585 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,406 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,455 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,889 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,334 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,555 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,357 |
| Ancient City to Country | 0 | - | 4.70 | 108,167 |
| City-States | 0 | - | 4.53 | 37,316 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,365 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,728 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,215 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,728 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,162 |
| 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 | 58,988 |
| Top Five Capitals By Category #1 | 0 | - | 4.74 | 81,388 |
| Top Five Capitals By Category #2 | 0 | - | 4.78 | 67,276 |
| Most Expensive Capital Cities | 0 | - | 4.55 | 81,257 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,245 |
| Capitals of the Stans | 0 | - | 4.95 | 26,945 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,452 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,314 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,760 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,407 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,607 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,576 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,951 |
| Official Cities in the UK | 0 | - | 4.89 | 284,742 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,009 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,206 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,632 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,945 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,776 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,770 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,249 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,587 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,064 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,749 |
