| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,276 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,790 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,249 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,999 |
| Africa Capitals Quiz | 0 | - | 4.99 | 738,915 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,107 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,568 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,743 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,352 |
| Random European Capital to Country | 0 | - | 4.98 | 191,104 |
| Random European Country to Capital | 0 | - | 4.93 | 165,304 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,549 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,883 |
| Random African Capital to Country | 0 | - | 4.97 | 100,818 |
| Random African Country to Capital | 0 | - | 4.94 | 71,332 |
| World Capitals Quiz | 0 | - | 5.00 | 5,080,365 |
| Europe Capital to Country | 0 | - | 4.99 | 250,677 |
| Asia Capital to Country | 0 | - | 4.96 | 126,774 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,089 |
| European Capitals by Map | 0 | - | 4.99 | 139,699 |
| African Capitals by Map | 0 | - | 4.99 | 134,067 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,569 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,228 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,555 |
| European Coastal Capitals | 0 | - | 4.95 | 90,741 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,640 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,517 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,347 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,892 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,909 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,132 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,323 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,609 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,148 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,442 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,947 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,249 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,222 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,499 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,363 |
| Monarchies of Europe | 0 | - | 4.90 | 98,268 |
| Monarchies of Asia | 0 | - | 4.97 | 71,163 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,971 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,167 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,589,251 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,283 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,360 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,016 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,197 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,272 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,591 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,654 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,725 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,143 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,305 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,245 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,165 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,058 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,342 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,775 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,758 |
| Countries with Megacities | 0 | - | 4.99 | 264,241 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,617 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,400 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,883 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,463 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,361 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,450 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,501 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,616 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,390 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,207 |
| Countries by Capital City | 0 | - | 5.00 | 68,513 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,293 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,763 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,856 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,335 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,370 |
| Moved Capital Cities | 0 | - | 4.96 | 74,293 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,586 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,660 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,276 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,372 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,906 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,350 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,902 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,842 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,074 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,059 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,510 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,672 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,175 |
| North American Sports Cities | 0 | - | 4.83 | 172,551 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,368 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,197 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,917 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,489 |
| Cities by Former Name | 0 | - | 4.83 | 91,653 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,452 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,722 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,028 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,933 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,324 |
| World Capitals by Map | 0 | - | 5.00 | 287,177 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,410 |
| Random Capital to Country | 0 | - | 4.99 | 2,593,375 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,904 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,045 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,859 |
| Random Country to Capital | 0 | - | 4.98 | 921,926 |
| Capitals Starting With H | 0 | - | 4.91 | 92,671 |
| Capitals Starting With K | 0 | - | 4.88 | 83,709 |
| Capitals Starting With L | 0 | - | 4.81 | 88,198 |
| Capitals Starting With M | 0 | - | 4.93 | 107,983 |
| Capitals Starting With P | 0 | - | 4.88 | 78,305 |
| Capitals Starting With R | 0 | - | 4.87 | 81,940 |
| Capitals Starting With S | 0 | - | 4.90 | 85,905 |
| Capitals Starting With T | 0 | - | 4.85 | 76,260 |
| Capitals Starting With W | 0 | - | 4.87 | 91,369 |
| Capitals Starting With A | 0 | - | 4.97 | 128,215 |
| Capitals Starting With B | 0 | - | 4.89 | 118,652 |
| Capitals Starting With D | 0 | - | 4.93 | 96,572 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,255 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,166 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,364 |
| Olympic Host Countries | 0 | - | 4.98 | 201,003 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,003 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,523 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 310,298 |
| The Only European Country ... | 0 | - | 4.91 | 217,136 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,607 |
| Hindu Countries | 0 | - | 4.86 | 50,247 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,417 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,713 |
| Countries of Africa | 0 | - | 5.00 | 2,541,945 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,509 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,779 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,147 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,848 |
| Australia A-Z | 0 | - | 4.54 | 50,010 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,236 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,798 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,674 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,624 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,063 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,269 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,434 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,117 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,143 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,429 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,275 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,859 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,305 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,606 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,363 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,252 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,442 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,918 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,166 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,598 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,860 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,102 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,354 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,295 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 131,012 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,897 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,334 |
| Former Capitals | 0 | - | 4.88 | 71,500 |
| Capital Cities Chain | 0 | - | 4.83 | 82,873 |
| Coldest World Capitals | 0 | - | 4.95 | 133,623 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,690 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,873 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,037 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,172 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,011 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,486 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,116 |
| Countries of the Middle East | 0 | - | 4.96 | 201,482 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,460 |
| Slavic Countries | 0 | - | 4.96 | 111,805 |
| African Island Countries | 0 | - | 4.96 | 101,781 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,932 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,420 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,481 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 47,285 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,105 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,269 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,024,879 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,101 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,673 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,723 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,521 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,217 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,826 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,909 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,682 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,330 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,348 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,723 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,388 |
