| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,261 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,755 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,232 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,971 |
| Africa Capitals Quiz | 0 | - | 4.99 | 738,725 |
| Asia Capitals Quiz | 0 | - | 4.98 | 693,925 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,559 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,729 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,298 |
| Random European Capital to Country | 0 | - | 4.98 | 191,061 |
| Random European Country to Capital | 0 | - | 4.93 | 165,274 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,533 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,850 |
| Random African Capital to Country | 0 | - | 4.97 | 100,797 |
| Random African Country to Capital | 0 | - | 4.94 | 71,322 |
| World Capitals Quiz | 0 | - | 5.00 | 5,079,217 |
| Europe Capital to Country | 0 | - | 4.99 | 250,593 |
| Asia Capital to Country | 0 | - | 4.96 | 126,754 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,043 |
| European Capitals by Map | 0 | - | 4.99 | 139,614 |
| African Capitals by Map | 0 | - | 4.99 | 134,041 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,546 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,190 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,529 |
| European Coastal Capitals | 0 | - | 4.95 | 90,708 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,629 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,407 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,267 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,878 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,879 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,983 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,228 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,574 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,126 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,417 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,922 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,238 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,210 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,474 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,350 |
| Monarchies of Europe | 0 | - | 4.90 | 98,242 |
| Monarchies of Asia | 0 | - | 4.97 | 71,150 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,956 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,011 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,588,715 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,252 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,340 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,986 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,185 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,226 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,550 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,608 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,708 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,029 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,283 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,226 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,133 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,044 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,057 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,699 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,719 |
| Countries with Megacities | 0 | - | 4.99 | 264,136 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,564 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,382 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,825 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,438 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,327 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,413 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,487 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,598 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,354 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,173 |
| Countries by Capital City | 0 | - | 5.00 | 68,471 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,267 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,744 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,778 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,310 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,366 |
| Moved Capital Cities | 0 | - | 4.96 | 74,281 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,537 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,612 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,226 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,354 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,875 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,341 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,891 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,824 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,026 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,018 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,492 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,641 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,159 |
| North American Sports Cities | 0 | - | 4.83 | 172,524 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,363 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,166 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,903 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,469 |
| Cities by Former Name | 0 | - | 4.83 | 91,637 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,439 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,713 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,024 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,927 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,309 |
| World Capitals by Map | 0 | - | 5.00 | 287,096 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,393 |
| Random Capital to Country | 0 | - | 4.99 | 2,593,056 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,891 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,037 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,841 |
| Random Country to Capital | 0 | - | 4.98 | 921,702 |
| Capitals Starting With H | 0 | - | 4.91 | 92,655 |
| Capitals Starting With K | 0 | - | 4.88 | 83,680 |
| Capitals Starting With L | 0 | - | 4.81 | 88,183 |
| Capitals Starting With M | 0 | - | 4.93 | 107,956 |
| Capitals Starting With P | 0 | - | 4.88 | 78,286 |
| Capitals Starting With R | 0 | - | 4.87 | 81,924 |
| Capitals Starting With S | 0 | - | 4.90 | 85,888 |
| Capitals Starting With T | 0 | - | 4.85 | 76,242 |
| Capitals Starting With W | 0 | - | 4.87 | 91,357 |
| Capitals Starting With A | 0 | - | 4.97 | 128,189 |
| Capitals Starting With B | 0 | - | 4.89 | 118,617 |
| Capitals Starting With D | 0 | - | 4.93 | 96,548 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,239 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,159 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,297 |
| Olympic Host Countries | 0 | - | 4.98 | 200,954 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,974 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,458 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 310,128 |
| The Only European Country ... | 0 | - | 4.91 | 217,029 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,543 |
| Hindu Countries | 0 | - | 4.86 | 50,230 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,367 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,706 |
| Countries of Africa | 0 | - | 5.00 | 2,541,122 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,506 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,749 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,126 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,825 |
| Australia A-Z | 0 | - | 4.54 | 50,002 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,160 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,769 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,664 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,584 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,025 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,259 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,427 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,089 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,115 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,411 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,259 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,838 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,293 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,599 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,338 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,250 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,432 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,914 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,160 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,592 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,838 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,081 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,286 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,254 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,998 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,884 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,307 |
| Former Capitals | 0 | - | 4.88 | 71,493 |
| Capital Cities Chain | 0 | - | 4.83 | 82,841 |
| Coldest World Capitals | 0 | - | 4.95 | 133,608 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,670 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,860 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,010 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,161 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,785 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,443 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,031 |
| Countries of the Middle East | 0 | - | 4.96 | 201,367 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,427 |
| Slavic Countries | 0 | - | 4.96 | 111,776 |
| African Island Countries | 0 | - | 4.96 | 101,746 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,923 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,385 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,434 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 47,238 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,078 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,241 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,024,578 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,036 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,614 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,680 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,479 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,175 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,787 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,857 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,673 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,312 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,313 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,690 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,356 |
