| World Capitals Quiz | 0 | - | 5.00 | 5,097,761 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,801 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,292 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,551 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,719 |
| Countries with Megacities | 0 | - | 4.99 | 266,239 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,443 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,858 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,737 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,973 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,035 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,967 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,842 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,025 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,978 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,864 |
| Countries by Capital City | 0 | - | 5.00 | 69,144 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,695 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,082 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,661 |
| Moved Capital Cities | 0 | - | 4.96 | 74,553 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,377 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,754 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,149 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,912 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,928 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,233 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,679 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,311 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,175 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,713 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,496 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,781 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,055 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,458 |
| North American Sports Cities | 0 | - | 4.83 | 172,972 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,506 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,812 |
| Name a City - European Countries | 0 | - | 4.90 | 65,985 |
| Name a Valid World City | 0 | - | 4.84 | 71,789 |
| Cities by Former Name | 0 | - | 4.83 | 91,930 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,622 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,901 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,664 |
| World Capitals by Map | 0 | - | 5.00 | 288,757 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,705 |
| Capitals Starting With H | 0 | - | 4.91 | 93,093 |
| Capitals Starting With K | 0 | - | 4.88 | 84,163 |
| Capitals Starting With L | 0 | - | 4.79 | 92,934 |
| Capitals Starting With M | 0 | - | 4.93 | 108,738 |
| Capitals Starting With P | 0 | - | 4.88 | 78,742 |
| Capitals Starting With R | 0 | - | 4.88 | 82,298 |
| Capitals Starting With S | 0 | - | 4.90 | 86,331 |
| Capitals Starting With T | 0 | - | 4.85 | 76,625 |
| Capitals Starting With W | 0 | - | 4.87 | 91,593 |
| Capitals Starting With A | 0 | - | 4.97 | 128,782 |
| Capitals Starting With B | 0 | - | 4.89 | 119,185 |
| Capitals Starting With D | 0 | - | 4.93 | 96,961 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,335 |
| Olympic Host Countries | 0 | - | 4.98 | 201,636 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,646 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,781 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,602 |
| The Only European Country ... | 0 | - | 4.91 | 218,433 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,503 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,196 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,848 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,299 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,642 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,043 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,212 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,352 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,481 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,852 |
| Random Country to Capital | 0 | - | 4.98 | 925,874 |
| Countries of Africa | 0 | - | 5.00 | 2,553,664 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,967 |
| Random European Capital to Country | 0 | - | 4.98 | 191,879 |
| Random European Country to Capital | 0 | - | 4.93 | 165,692 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,894 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,290 |
| Random African Capital to Country | 0 | - | 4.97 | 101,176 |
| Random African Country to Capital | 0 | - | 4.95 | 71,638 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,666 |
| Boundary Waters | 0 | - | 4.92 | 88,702 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,354 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,528 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,130 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,830 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,828 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,445 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,196 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,840 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,121 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,486 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,608 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,743 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,115 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,603 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,749 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,430 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,105 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,443 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,776 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,634 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,720 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,282 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,743 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,116 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,839 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,516 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,447 |
| Former Capitals | 0 | - | 4.88 | 71,622 |
| Europe Capital to Country | 0 | - | 4.99 | 251,676 |
| Asia Capital to Country | 0 | - | 4.96 | 127,239 |
| Capital Cities Chain | 0 | - | 4.84 | 83,219 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,711 |
| European Capitals by Map | 0 | - | 4.99 | 141,544 |
| African Capitals by Map | 0 | - | 4.99 | 141,624 |
| Coldest World Capitals | 0 | - | 4.95 | 134,083 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,672 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,679 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,019 |
| European Coastal Capitals | 0 | - | 4.95 | 91,127 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,095 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,963 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,392 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,077 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,997 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,409 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,295 |
| Countries of the Middle East | 0 | - | 4.96 | 202,315 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,966 |
| Slavic Countries | 0 | - | 4.96 | 112,202 |
| African Island Countries | 0 | - | 4.96 | 102,272 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,096 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,110 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,657 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,481 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,731 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,604 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,138 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,360 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,976 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,104 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,311 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,382 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,874 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,656 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,857 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,324 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,096 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,735 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,015 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,988 |
| Unusual U.S. City Names | 0 | - | 4.52 | 27,973 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,569 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,595 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.37 | 53,648 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,186 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,596 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,937 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,154 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,943 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,419 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,713 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,573 |
| Ancient City to Country | 0 | - | 4.70 | 108,266 |
| City-States | 0 | - | 4.53 | 37,369 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,451 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,774 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,240 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,880 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,193 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,580 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,272 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 59,046 |
| Top Five Capitals By Category #1 | 0 | - | 4.74 | 81,836 |
| Top Five Capitals By Category #2 | 0 | - | 4.78 | 67,503 |
| Most Expensive Capital Cities | 0 | - | 4.55 | 81,418 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,283 |
| 10 Easternmost Countries in Africa | 0 | - | 4.97 | 24,713 |
| Capitals of the Stans | 0 | - | 4.95 | 27,071 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,053 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,778 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,435 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,714 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,752 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,849 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,119 |
| Official Cities in the UK | 0 | - | 4.89 | 285,598 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,169 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,345 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,711 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,109 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,612 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,036 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,438 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,903 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,275 |
