| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,676 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 227,897 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,555 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,431 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,716 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,788 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,817 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,057 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,039 |
| Random European Capital to Country | 0 | - | 4.98 | 192,127 |
| Random European Country to Capital | 0 | - | 4.93 | 165,884 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,981 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,413 |
| Random African Capital to Country | 0 | - | 4.97 | 101,339 |
| Random African Country to Capital | 0 | - | 4.95 | 71,742 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,569 |
| Europe Capital to Country | 0 | - | 4.99 | 252,057 |
| Asia Capital to Country | 0 | - | 4.96 | 127,385 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,964 |
| European Capitals by Map | 0 | - | 4.99 | 142,068 |
| African Capitals by Map | 0 | - | 4.99 | 142,132 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,896 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,864 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,176 |
| European Coastal Capitals | 0 | - | 4.95 | 91,301 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,189 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,679 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,760 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,161 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,329 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,948 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,173 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,228 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,576 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,103 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,390 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,581 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,460 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,947 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,703 |
| Monarchies of Europe | 0 | - | 4.90 | 98,865 |
| Monarchies of Asia | 0 | - | 4.97 | 71,501 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,282 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,353 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,354 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,703 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,807 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,990 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,662 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,218 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,606 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,684 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,326 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,255 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,827 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,867 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,785 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,732 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,026 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,464 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,133 |
| Countries with Megacities | 0 | - | 4.99 | 267,073 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,825 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,123 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,141 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,230 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,291 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,341 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,967 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,195 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,213 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,130 |
| Countries by Capital City | 0 | - | 5.00 | 69,375 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,845 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,220 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,823 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,805 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,485 |
| Moved Capital Cities | 0 | - | 4.96 | 74,642 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,517 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,420 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,084 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,991 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,185 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,614 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,297 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,320 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,018 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,643 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,895 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,211 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,608 |
| North American Sports Cities | 0 | - | 4.82 | 173,142 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,556 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,983 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,420 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,942 |
| Cities by Former Name | 0 | - | 4.83 | 92,044 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,680 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,980 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,153 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,031 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,822 |
| World Capitals by Map | 0 | - | 5.00 | 289,319 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,820 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,403 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,258 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,366 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,392 |
| Random Country to Capital | 0 | - | 4.98 | 927,971 |
| Capitals Starting With H | 0 | - | 4.91 | 93,332 |
| Capitals Starting With K | 0 | - | 4.89 | 84,398 |
| Capitals Starting With M | 0 | - | 4.94 | 109,180 |
| Capitals Starting With P | 0 | - | 4.88 | 79,008 |
| Capitals Starting With R | 0 | - | 4.88 | 82,507 |
| Capitals Starting With S | 0 | - | 4.90 | 86,572 |
| Capitals Starting With T | 0 | - | 4.86 | 76,840 |
| Capitals Starting With W | 0 | - | 4.87 | 91,733 |
| Capitals Starting With A | 0 | - | 4.97 | 129,103 |
| Capitals Starting With B | 0 | - | 4.89 | 119,498 |
| Capitals Starting With D | 0 | - | 4.94 | 97,202 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,644 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,313 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,773 |
| Olympic Host Countries | 0 | - | 4.98 | 201,951 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,851 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,086 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 313,872 |
| The Only European Country ... | 0 | - | 4.91 | 218,971 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,914 |
| Hindu Countries | 0 | - | 4.87 | 50,574 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,491 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,912 |
| Countries of Africa | 0 | - | 5.00 | 2,559,456 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,733 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,982 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,568 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,193 |
| Australia A-Z | 0 | - | 4.54 | 50,137 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,979 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,394 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,903 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,348 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,668 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,746 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,888 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,683 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,803 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,885 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,520 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,194 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,512 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,855 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,760 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,319 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,725 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,109 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,228 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,775 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,456 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,907 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,464 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,052 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,674 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,575 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,836 |
| Former Capitals | 0 | - | 4.88 | 71,675 |
| Capital Cities Chain | 0 | - | 4.84 | 83,359 |
| Coldest World Capitals | 0 | - | 4.95 | 134,154 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,124 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,214 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,561 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,842 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,568 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,663 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,751 |
| Countries of the Middle East | 0 | - | 4.96 | 202,932 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,166 |
| Slavic Countries | 0 | - | 4.96 | 112,359 |
| African Island Countries | 0 | - | 4.96 | 102,434 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,170 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,105 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,392 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 53,114 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,654 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,921 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,365 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,808 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,310 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,595 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,160 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,344 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,500 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,511 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,950 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,782 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,041 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,708 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,258 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,909 |
