| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 219,667 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 123,618 |
| Africa Capitals Quiz | 0 | - | 4.99 | 700,667 |
| Asia Capitals Quiz | 0 | - | 4.98 | 658,507 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 81,124 |
| Random European Capital to Country | 0 | - | 4.97 | 183,713 |
| Random European Country to Capital | 0 | - | 4.93 | 143,527 |
| Random Asian Country to Capital | 0 | - | 4.92 | 92,095 |
| Random Asian Capital to Country | 0 | - | 4.97 | 97,300 |
| Random African Capital to Country | 0 | - | 4.97 | 87,439 |
| Random African Country to Capital | 0 | - | 4.94 | 67,555 |
| World Capitals Quiz | 0 | - | 5.00 | 4,864,495 |
| Europe Capital to Country | 0 | - | 4.99 | 239,184 |
| Asia Capital to Country | 0 | - | 4.96 | 122,493 |
| EU Capitals with No Hints | 0 | - | 4.96 | 138,507 |
| European Capitals by Map | 0 | - | 4.99 | 126,401 |
| African Capitals by Map | 0 | - | 4.99 | 125,763 |
| Asian Capitals by Map | 0 | - | 4.98 | 56,911 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.87 | 87,489 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 80,306 |
| European Coastal Capitals | 0 | - | 4.95 | 86,082 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.90 | 50,660 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 254,599 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 213,250 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 79,831 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 136,903 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,510,168 |
| South America Capitals Quiz | 0 | - | 5.00 | 461,660 |
| North America Capitals Quiz | 0 | - | 4.99 | 206,427 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 58,693 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 90,737 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 114,250 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 84,121 |
| European Capitals Furthest from the Sea | 0 | - | 4.90 | 71,296 |
| Asian Capitals - Map Quiz | 0 | - | 4.94 | 57,892 |
| European Capitals Ending in N | 0 | - | 4.92 | 78,705 |
| Capitals of the Stans | 0 | - | 4.96 | 24,988 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,934 |
| Countries with Megacities | 0 | - | 4.99 | 222,559 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 189,715 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,763 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 129,032 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 75,183 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 302,825 |
| Global Cities on a World Map | 0 | - | 4.94 | 105,605 |
| Capitals of Canadian Provinces | 0 | - | 4.87 | 84,864 |
| Northernmost Capital Cities | 0 | - | 4.98 | 103,814 |
| Most Remote Capital Cities | 0 | - | 4.91 | 49,593 |
| Capital Cities: Ports and Saints | 0 | - | 4.95 | 41,041 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 102,123 |
| Same Letter Country and Capital | 0 | - | 4.99 | 140,285 |
| Countries by Capital City | 0 | - | 5.00 | 60,792 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 72,919 |
| Capitals of the Largest Countries by Area | 0 | - | 4.95 | 110,931 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 80,207 |
| Moved Capital Cities | 0 | - | 4.95 | 71,318 |
| Name a Valid European Capital | 0 | - | 4.95 | 144,984 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 78,738 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 69,804 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,394,311 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,512 |
| World Capitals by Proximity | 0 | - | 4.90 | 316,624 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 125,067 |
| Most Guessed European Capitals | 0 | - | 4.89 | 99,827 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 82,907 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 259,567 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 117,223 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 108,591 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 89,403 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 55,784 |
| Summer Olympic City Bids | 0 | - | 4.92 | 39,971 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.87 | 98,531 |
| Name a City - European Countries | 0 | - | 4.93 | 60,679 |
| Cities by Former Name | 0 | - | 4.84 | 88,625 |
| Capitals in their Native Languages | 0 | - | 4.94 | 130,724 |
| Nearest Capital City #1 | 0 | - | 4.83 | 55,387 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 51,970 |
| World Capitals by Map | 0 | - | 5.00 | 270,302 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.96 | 54,957 |
| Random Capital to Country | 0 | - | 4.99 | 2,519,057 |
| Random Country to Capital | 0 | - | 4.98 | 875,895 |
| World Capitals By Letter - H | 0 | - | 4.86 | 76,088 |
| World Capitals By Letter - K | 0 | - | 4.82 | 70,647 |
| World Capitals By Letter - M | 0 | - | 4.92 | 97,042 |
| World Capitals By Letter - P | 0 | - | 4.85 | 72,045 |
| World Capitals By Letter - R | 0 | - | 4.85 | 76,659 |
| World Capitals By Letter - S | 0 | - | 4.89 | 79,524 |
| World Capitals By Letter - T | 0 | - | 4.82 | 70,810 |
| World Capitals By Letter - W | 0 | - | 4.88 | 86,621 |
| World Capitals By Letter - A | 0 | - | 4.96 | 112,606 |
| World Capitals By Letter - B | 0 | - | 4.84 | 103,737 |
| World Capitals By Letter - D | 0 | - | 4.92 | 84,400 |
| Countries That Use the Euro | 0 | - | 4.96 | 84,046 |
| Olympic Host Countries | 0 | - | 4.98 | 191,439 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 106,912 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.93 | 262,427 |
| The Only European Country ... | 0 | - | 4.91 | 201,751 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 203,065 |
| European Countries NOT in NATO | 0 | - | 4.88 | 52,892 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 90,200 |
| Countries of Africa | 0 | - | 5.00 | 2,395,927 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,009 |
| Random African Capitals on a Map | 0 | - | 4.95 | 52,645 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 49,155 |
| Random European Capitals on a Map | 0 | - | 4.98 | 130,082 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 91,919 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.89 | 46,717 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 141,477 |
| Countries of Europe by Population | 0 | - | 4.98 | 167,854 |
| Most Populous Countries by Year | 0 | - | 4.81 | 104,472 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 86,078 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 111,208 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 102,300 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 108,615 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 86,060 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 90,524 |
| Most Populous World Capitals | 0 | - | 4.93 | 170,552 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 216,569 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 131,256 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 73,353 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 81,459 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 65,028 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 71,133 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 93,580 |
| Biggest City by Body of Water | 0 | - | 4.51 | 39,753 |
| Southernmost Major Cities | 0 | - | 4.42 | 46,357 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 71,397 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 46,530 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.43 | 35,760 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.90 | 93,519 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 104,451 |
| Most Guessed Cities by Country #3 | 0 | - | 4.88 | 42,003 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 204,050 |
| Most-Visited Cities in Europe | 0 | - | 4.89 | 68,472 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 126,163 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 110,393 |
| Cities By Wikipedia Word Clouds A-Z | 0 | - | 4.81 | 31,424 |
| Former Capitals Quiz | 0 | - | 4.87 | 69,743 |
| Capital Cities Chain | 0 | - | 4.87 | 78,162 |
| Coldest World Capitals | 0 | - | 4.96 | 131,574 |
| Capital Cities with Spanish Names | 0 | - | 4.89 | 71,813 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 86,310 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 137,177 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,283,825 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 26,332 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 206,866 |
| Countries of the Middle East | 0 | - | 4.95 | 191,257 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 84,259 |
| Slavic Countries | 0 | - | 4.96 | 107,791 |
| African Island Countries | 0 | - | 4.96 | 97,138 |
| Straight Shot to Antarctica | 0 | - | 4.93 | 40,876 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 61,855 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 160,714 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 165,001 |
| Countries of North America Quiz | 0 | - | 5.00 | 968,493 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 121,248 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 102,684 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 130,687 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 58,956 |
| Five Coldest Countries by Continent | 0 | - | 4.96 | 74,457 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 210,189 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 187,169 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 149,401 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 110,737 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 139,412 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 146,636 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 112,384 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 156,252 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 95,568 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 104,091 |
| Random State Capital to U.S. State | 0 | - | 4.81 | 84,034 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 222,609 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 175,169 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 171,831 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 99,970 |
| Countries by Population Decrease | 0 | - | 4.45 | 48,772 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 105,520 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 155,045 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.62 | 62,427 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 20,509 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 169,345 |
| Lonely Planet Top 200 Cities | 0 | - | 4.53 | 217,489 |
| Ancient City to Country | 0 | - | 4.70 | 105,427 |
| Official Cities in the UK | 0 | - | 4.89 | 268,326 |
| City-States | 0 | - | 4.53 | 36,472 |
| Cities with the Most International Tourists | 0 | - | 4.46 | 52,692 |
| Damaged and Destroyed Cities | 0 | - | 4.42 | 43,790 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 45,685 |
| City to Country - Tile Select #1 | 0 | - | 4.73 | 36,553 |
| City Where It Happened #2 | 0 | - | 4.44 | 52,315 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,170 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 56,767 |
| Capitals Based on Last Two Letters | 0 | - | 4.47 | 57,757 |
| Capital Cities by Body of Water | 0 | - | 4.88 | 56,269 |
| Asian Coastal Capitals | 0 | - | 4.51 | 21,514 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.89 | 120,722 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 49,435 |
| Word Scramble - European Capitals | 0 | - | 4.75 | 91,818 |
| Top Five Capitals By Category #1 | 0 | - | 4.55 | 56,235 |
| Top Five Capitals By Category #2 | 0 | - | 4.52 | 48,279 |
