| World Capitals Quiz | 0 | - | 5.00 | 5,096,764 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,566 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,966 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,535 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,583 |
| Countries with Megacities | 0 | - | 4.99 | 266,076 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,345 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,799 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,612 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,923 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,010 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,935 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,817 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,004 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,945 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,830 |
| Countries by Capital City | 0 | - | 5.00 | 69,109 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,678 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,071 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,644 |
| Moved Capital Cities | 0 | - | 4.96 | 74,536 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,340 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,751 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,131 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,696 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,849 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,176 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,659 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,294 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,150 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,677 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,480 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,757 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,023 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,441 |
| North American Sports Cities | 0 | - | 4.83 | 172,960 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,501 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,805 |
| Name a City - European Countries | 0 | - | 4.90 | 65,963 |
| Name a Valid World City | 0 | - | 4.84 | 71,764 |
| Cities by Former Name | 0 | - | 4.83 | 91,915 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,609 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,892 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,643 |
| World Capitals by Map | 0 | - | 5.00 | 288,672 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,691 |
| Capitals Starting With H | 0 | - | 4.91 | 92,984 |
| Capitals Starting With K | 0 | - | 4.88 | 84,031 |
| Capitals Starting With L | 0 | - | 4.81 | 90,657 |
| Capitals Starting With M | 0 | - | 4.93 | 108,532 |
| Capitals Starting With P | 0 | - | 4.88 | 78,625 |
| Capitals Starting With R | 0 | - | 4.88 | 82,190 |
| Capitals Starting With S | 0 | - | 4.90 | 86,208 |
| Capitals Starting With T | 0 | - | 4.85 | 76,520 |
| Capitals Starting With W | 0 | - | 4.87 | 91,529 |
| Capitals Starting With A | 0 | - | 4.97 | 128,653 |
| Capitals Starting With B | 0 | - | 4.89 | 119,056 |
| Capitals Starting With D | 0 | - | 4.93 | 96,867 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,291 |
| Olympic Host Countries | 0 | - | 4.98 | 201,602 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,628 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,748 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,497 |
| The Only European Country ... | 0 | - | 4.91 | 218,367 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,458 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,163 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,841 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,296 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,633 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,037 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,210 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,211 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,332 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,530 |
| Random Country to Capital | 0 | - | 4.98 | 925,680 |
| Countries of Africa | 0 | - | 5.00 | 2,553,067 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,957 |
| Random European Capital to Country | 0 | - | 4.98 | 191,860 |
| Random European Country to Capital | 0 | - | 4.93 | 165,679 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,887 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,279 |
| Random African Capital to Country | 0 | - | 4.97 | 101,159 |
| Random African Country to Capital | 0 | - | 4.94 | 71,629 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,647 |
| Boundary Waters | 0 | - | 4.92 | 88,694 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,347 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,514 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,102 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,812 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,814 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,384 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,170 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,831 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,087 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,463 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,591 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,720 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,104 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,582 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,733 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,415 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,096 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,437 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,755 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,615 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,712 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,263 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,730 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,085 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,824 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,505 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,436 |
| Former Capitals | 0 | - | 4.88 | 71,616 |
| Europe Capital to Country | 0 | - | 4.99 | 251,635 |
| Asia Capital to Country | 0 | - | 4.96 | 127,223 |
| Capital Cities Chain | 0 | - | 4.84 | 83,203 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,677 |
| European Capitals by Map | 0 | - | 4.99 | 141,496 |
| African Capitals by Map | 0 | - | 4.99 | 141,555 |
| Coldest World Capitals | 0 | - | 4.95 | 134,072 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,647 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,661 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,001 |
| European Coastal Capitals | 0 | - | 4.95 | 91,111 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,087 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,862 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,354 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,063 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,980 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,386 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,238 |
| Countries of the Middle East | 0 | - | 4.96 | 202,276 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,950 |
| Slavic Countries | 0 | - | 4.96 | 112,188 |
| African Island Countries | 0 | - | 4.96 | 102,252 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,081 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,075 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,594 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,462 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,707 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,574 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,113 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,326 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,956 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,075 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,288 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,356 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,861 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,645 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,842 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,312 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,083 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,720 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,993 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,971 |
| Unusual U.S. City Names | 0 | - | 4.52 | 27,970 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,567 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,593 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.37 | 53,578 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,185 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,596 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,808 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,985 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,940 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,414 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,699 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,560 |
| Ancient City to Country | 0 | - | 4.70 | 108,258 |
| City-States | 0 | - | 4.53 | 37,368 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,448 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,772 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,236 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,875 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,192 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,579 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,272 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 59,042 |
| Top Five Capitals By Category #1 | 0 | - | 4.74 | 81,788 |
| Top Five Capitals By Category #2 | 0 | - | 4.78 | 67,486 |
| Most Expensive Capital Cities | 0 | - | 4.55 | 81,404 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,282 |
| 10 Easternmost Countries in Africa | 0 | - | 4.97 | 24,655 |
| Capitals of the Stans | 0 | - | 4.95 | 27,066 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,004 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,744 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,387 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,688 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,744 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,826 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,106 |
| Official Cities in the UK | 0 | - | 4.89 | 285,523 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,162 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,336 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,703 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,977 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,567 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,011 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,427 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,873 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,267 |
