| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,541 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,351 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,300 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,273 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,418 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,962 |
| Random European Capital to Country | 0 | - | 4.98 | 191,865 |
| Random European Country to Capital | 0 | - | 4.93 | 165,685 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,889 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,282 |
| Random African Capital to Country | 0 | - | 4.97 | 101,166 |
| Random African Country to Capital | 0 | - | 4.94 | 71,634 |
| World Capitals Quiz | 0 | - | 5.00 | 5,097,096 |
| Europe Capital to Country | 0 | - | 4.99 | 251,647 |
| Asia Capital to Country | 0 | - | 4.96 | 127,229 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,690 |
| European Capitals by Map | 0 | - | 4.99 | 141,512 |
| African Capitals by Map | 0 | - | 4.99 | 141,582 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,650 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,672 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,012 |
| European Coastal Capitals | 0 | - | 4.95 | 91,122 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,089 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,894 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,366 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,067 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,965 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,653 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,125 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,024 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,587 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,030 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,431 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,887 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,273 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,478 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,803 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,597 |
| Capitals of the Stans | 0 | - | 4.95 | 27,067 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,640 |
| Countries with Megacities | 0 | - | 4.99 | 266,133 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,376 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,823 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,662 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,944 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,021 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,471 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,943 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,829 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,010 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,955 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,836 |
| Countries by Capital City | 0 | - | 5.00 | 69,118 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,688 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,074 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,649 |
| Moved Capital Cities | 0 | - | 4.96 | 74,547 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,315 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,753 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,458 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,139 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,795 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,882 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,197 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,205 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,734 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,662 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,158 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,684 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,484 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,771 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,037 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,446 |
| North American Sports Cities | 0 | - | 4.83 | 172,964 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,502 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,811 |
| Name a City - European Countries | 0 | - | 4.90 | 65,972 |
| Name a Valid World City | 0 | - | 4.84 | 71,779 |
| Cities by Former Name | 0 | - | 4.83 | 91,919 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,616 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,895 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,656 |
| World Capitals by Map | 0 | - | 5.00 | 288,701 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,695 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,651 |
| Random Country to Capital | 0 | - | 4.98 | 925,736 |
| Capitals Starting With H | 0 | - | 4.91 | 93,015 |
| Capitals Starting With K | 0 | - | 4.88 | 84,068 |
| Capitals Starting With L | 0 | - | 4.81 | 91,654 |
| Capitals Starting With M | 0 | - | 4.93 | 108,605 |
| Capitals Starting With P | 0 | - | 4.88 | 78,671 |
| Capitals Starting With R | 0 | - | 4.88 | 82,221 |
| Capitals Starting With S | 0 | - | 4.90 | 86,248 |
| Capitals Starting With T | 0 | - | 4.85 | 76,557 |
| Capitals Starting With W | 0 | - | 4.87 | 91,552 |
| Capitals Starting With A | 0 | - | 4.97 | 128,692 |
| Capitals Starting With B | 0 | - | 4.89 | 119,096 |
| Capitals Starting With D | 0 | - | 4.93 | 96,896 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,307 |
| Olympic Host Countries | 0 | - | 4.98 | 201,613 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,634 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,759 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,549 |
| The Only European Country ... | 0 | - | 4.91 | 218,396 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,475 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,175 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,845 |
| Countries of Africa | 0 | - | 5.00 | 2,553,226 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,117 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,162 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,290 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,250 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,503 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,254 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,986 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,409 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,181 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,833 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,103 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,472 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,596 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,729 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,111 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,515 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,590 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,737 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,419 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,097 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,439 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,760 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,623 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,297 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,634 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,038 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,210 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,713 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,267 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,734 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,096 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,825 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,508 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,442 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,651 |
| Former Capitals | 0 | - | 4.88 | 71,619 |
| Capital Cities Chain | 0 | - | 4.84 | 83,207 |
| Coldest World Capitals | 0 | - | 4.95 | 134,076 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,989 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,119 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,394 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 149,921 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,853 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,258 |
| Countries of the Middle East | 0 | - | 4.96 | 202,289 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,954 |
| Slavic Countries | 0 | - | 4.96 | 112,194 |
| African Island Countries | 0 | - | 4.96 | 102,259 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,083 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,090 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,620 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,472 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,715 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,046 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,588 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,121 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,333 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 60,044 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,840 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,085 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,297 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,366 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,867 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,652 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,847 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,317 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,089 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,727 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,002 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,976 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,625 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,029 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,759 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,409 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,697 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,941 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,749 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,834 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,415 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,703 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,111 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,563 |
| Ancient City to Country | 0 | - | 4.70 | 108,261 |
| Official Cities in the UK | 0 | - | 4.89 | 285,551 |
| City-States | 0 | - | 4.53 | 37,369 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,449 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,772 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,164 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,237 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,340 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,876 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,193 |
