| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,271 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,772 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,240 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,985 |
| Africa Capitals Quiz | 0 | - | 4.99 | 738,818 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,040 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,565 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,737 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,323 |
| Random European Capital to Country | 0 | - | 4.98 | 191,078 |
| Random European Country to Capital | 0 | - | 4.93 | 165,291 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,544 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,867 |
| Random African Capital to Country | 0 | - | 4.97 | 100,805 |
| Random African Country to Capital | 0 | - | 4.94 | 71,327 |
| World Capitals Quiz | 0 | - | 5.00 | 5,079,847 |
| Europe Capital to Country | 0 | - | 4.99 | 250,643 |
| Asia Capital to Country | 0 | - | 4.96 | 126,769 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,063 |
| European Capitals by Map | 0 | - | 4.99 | 139,667 |
| African Capitals by Map | 0 | - | 4.99 | 134,052 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,560 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,210 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,546 |
| European Coastal Capitals | 0 | - | 4.95 | 90,725 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,635 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,500 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,310 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,885 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,894 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,068 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,268 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,591 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,136 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,429 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,940 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,243 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,216 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,488 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,356 |
| Monarchies of Europe | 0 | - | 4.90 | 98,257 |
| Monarchies of Asia | 0 | - | 4.97 | 71,156 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,964 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,089 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,589,013 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,274 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,349 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,001 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,192 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,246 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,566 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,632 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,713 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,092 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,291 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,241 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,155 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,050 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,214 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,745 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,741 |
| Countries with Megacities | 0 | - | 4.99 | 264,191 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,594 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,391 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,855 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,454 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,345 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,437 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,493 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,606 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,369 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,187 |
| Countries by Capital City | 0 | - | 5.00 | 68,496 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,278 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,752 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,832 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,322 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,369 |
| Moved Capital Cities | 0 | - | 4.96 | 74,285 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,561 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,637 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,249 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,361 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,887 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,348 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,895 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,833 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,058 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,037 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,498 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,656 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,168 |
| North American Sports Cities | 0 | - | 4.83 | 172,537 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,367 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,177 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,907 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,481 |
| Cities by Former Name | 0 | - | 4.83 | 91,647 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,444 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,716 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,027 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,929 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,318 |
| World Capitals by Map | 0 | - | 5.00 | 287,135 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,404 |
| Random Capital to Country | 0 | - | 4.99 | 2,593,239 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,895 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,040 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,849 |
| Random Country to Capital | 0 | - | 4.98 | 921,811 |
| Capitals Starting With H | 0 | - | 4.91 | 92,663 |
| Capitals Starting With K | 0 | - | 4.88 | 83,694 |
| Capitals Starting With L | 0 | - | 4.81 | 88,192 |
| Capitals Starting With M | 0 | - | 4.93 | 107,972 |
| Capitals Starting With P | 0 | - | 4.88 | 78,298 |
| Capitals Starting With R | 0 | - | 4.87 | 81,934 |
| Capitals Starting With S | 0 | - | 4.90 | 85,898 |
| Capitals Starting With T | 0 | - | 4.85 | 76,248 |
| Capitals Starting With W | 0 | - | 4.87 | 91,364 |
| Capitals Starting With A | 0 | - | 4.97 | 128,205 |
| Capitals Starting With B | 0 | - | 4.89 | 118,634 |
| Capitals Starting With D | 0 | - | 4.93 | 96,561 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,248 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,159 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,334 |
| Olympic Host Countries | 0 | - | 4.98 | 200,978 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,992 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,491 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 310,222 |
| The Only European Country ... | 0 | - | 4.91 | 217,089 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,577 |
| Hindu Countries | 0 | - | 4.86 | 50,237 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,399 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,707 |
| Countries of Africa | 0 | - | 5.00 | 2,541,499 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,508 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,753 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,140 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,841 |
| Australia A-Z | 0 | - | 4.54 | 50,007 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,193 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,780 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,668 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,608 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,045 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,265 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,431 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,103 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,128 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,423 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,267 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,852 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,298 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,603 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,348 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,251 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,439 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,917 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,165 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,593 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,846 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,089 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,330 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,276 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 131,005 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,891 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,321 |
| Former Capitals | 0 | - | 4.88 | 71,498 |
| Capital Cities Chain | 0 | - | 4.83 | 82,852 |
| Coldest World Capitals | 0 | - | 4.95 | 133,614 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,684 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,864 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,026 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,167 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,918 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,460 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,085 |
| Countries of the Middle East | 0 | - | 4.96 | 201,430 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,447 |
| Slavic Countries | 0 | - | 4.96 | 111,791 |
| African Island Countries | 0 | - | 4.96 | 101,764 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,929 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,401 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,465 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 47,263 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,093 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,260 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,024,722 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,071 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,654 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,702 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,504 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,191 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,809 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,882 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,679 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,318 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,337 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,703 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,370 |
