| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,161 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,044 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,539 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,991 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,733 |
| Europe Capital to Country | 0 | - | 4.99 | 247,332 |
| Asia Capital to Country | 0 | - | 4.96 | 125,642 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,325 |
| European Capitals by Map | 0 | - | 4.99 | 135,995 |
| African Capitals by Map | 0 | - | 4.99 | 132,073 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,987 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,086 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,538 |
| European Coastal Capitals | 0 | - | 4.95 | 89,668 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,149 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,453 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,579 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,385 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,964 |
| Random European Capital to Country | 0 | - | 4.98 | 189,083 |
| Random European Country to Capital | 0 | - | 4.92 | 147,355 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,298 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,336 |
| Random African Capital to Country | 0 | - | 4.97 | 99,678 |
| Random African Country to Capital | 0 | - | 4.94 | 70,161 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,192 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,428 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,896 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,585 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,564 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,345 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,036 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,089 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,654 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,380 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,717 |
| Capitals of the Stans | 0 | - | 4.95 | 26,372 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,904 |
| Countries with Megacities | 0 | - | 4.99 | 246,294 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,828 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,754 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,284 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,691 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,615 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,833 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,580 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,533 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,496 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,255 |
| Countries by Capital City | 0 | - | 5.00 | 66,489 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,239 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,822 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,355 |
| Moved Capital Cities | 0 | - | 4.96 | 73,529 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,427 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,792 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,266 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,030 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,316 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,711 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,616 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,741 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,738 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,778 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,411 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,509 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,171 |
| North American Sports Cities | 0 | - | 4.83 | 170,784 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,889 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,649 |
| Name a City - European Countries | 0 | - | 4.92 | 64,284 |
| Cities by Former Name | 0 | - | 4.84 | 90,886 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,644 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,197 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,332 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,158 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,810 |
| World Capitals by Map | 0 | - | 5.00 | 282,898 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,609 |
| Capitals Starting With H | 0 | - | 4.90 | 89,701 |
| Capitals Starting With K | 0 | - | 4.85 | 75,551 |
| Capitals Starting With M | 0 | - | 4.93 | 105,854 |
| Capitals Starting With P | 0 | - | 4.88 | 77,055 |
| Capitals Starting With R | 0 | - | 4.87 | 80,852 |
| Capitals Starting With S | 0 | - | 4.89 | 84,670 |
| Capitals Starting With T | 0 | - | 4.84 | 75,178 |
| Capitals Starting With W | 0 | - | 4.89 | 90,499 |
| Capitals Starting With A | 0 | - | 4.97 | 126,366 |
| Capitals Starting With B | 0 | - | 4.89 | 117,127 |
| Capitals Starting With D | 0 | - | 4.93 | 95,220 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,772 |
| Olympic Host Countries | 0 | - | 4.98 | 198,780 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,742 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,371 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 302,904 |
| The Only European Country ... | 0 | - | 4.91 | 213,553 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,885 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,357 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,161 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,581 |
| Random Country to Capital | 0 | - | 4.98 | 910,717 |
| Countries of Africa | 0 | - | 5.00 | 2,505,120 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,137 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,065 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,546 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,011 |
| U.S. Cities With Spanish Names | 0 | - | 4.93 | 21,995 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,778 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,217 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,583 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,755 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,448 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,832 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,772 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,084 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,091 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,188 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,782 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,309 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,484 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,236 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,427 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,338 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,185 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,194 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,533 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,499 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,734 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,129 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,270 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,258 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,105 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,920 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,673 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,531 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,279 |
| Former Capitals | 0 | - | 4.88 | 71,094 |
| Capital Cities Chain | 0 | - | 4.84 | 81,831 |
| Coldest World Capitals | 0 | - | 4.95 | 132,993 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,708 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,716 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,897 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,737 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,084 |
| Countries of the Middle East | 0 | - | 4.96 | 198,744 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,175 |
| Slavic Countries | 0 | - | 4.96 | 110,783 |
| African Island Countries | 0 | - | 4.96 | 100,682 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,463 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,203 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,851 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,025 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,983 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,670 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,603 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,380 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,950 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,688 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,505 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,608 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,682 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,120 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,093 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,210 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,484 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,171 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,330 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,146 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,442 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,241 |
| Boundary Waters | 0 | - | 4.92 | 87,997 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,788 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,193 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,160 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,778 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,751 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,841 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,713 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,915 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,589 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,769 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,288 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,810 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,866 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,490 |
| Unusual U.S. City Names | 0 | - | 4.51 | 27,546 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,403 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,309 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.35 | 44,518 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 219,946 |
| Ancient City to Country | 0 | - | 4.70 | 107,568 |
| Official Cities in the UK | 0 | - | 4.89 | 280,236 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,091 |
| City-States | 0 | - | 4.53 | 37,076 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,546 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,752 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,464 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,054 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,031 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,941 |
