| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,397 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,068 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,339 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,127 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,519 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,371 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,643 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,846 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,568 |
| Random European Capital to Country | 0 | - | 4.98 | 191,576 |
| Random European Country to Capital | 0 | - | 4.93 | 165,484 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,768 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,075 |
| Random African Capital to Country | 0 | - | 4.97 | 100,983 |
| Random African Country to Capital | 0 | - | 4.94 | 71,461 |
| World Capitals Quiz | 0 | - | 5.00 | 5,087,800 |
| Europe Capital to Country | 0 | - | 4.99 | 251,098 |
| Asia Capital to Country | 0 | - | 4.96 | 126,949 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,339 |
| European Capitals by Map | 0 | - | 4.99 | 140,396 |
| African Capitals by Map | 0 | - | 4.99 | 137,095 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,897 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,383 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,720 |
| European Coastal Capitals | 0 | - | 4.95 | 90,907 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,704 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,128 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,805 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,957 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,022 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,046 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,831 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,781 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,265 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,618 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,089 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,349 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,282 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,619 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,462 |
| Monarchies of Europe | 0 | - | 4.90 | 98,432 |
| Monarchies of Asia | 0 | - | 4.97 | 71,281 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,070 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,271 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,592,465 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,406 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,465 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,208 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,317 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,555 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,934 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,939 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,870 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,863 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,454 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,417 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,343 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,539 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,378 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,263 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,116 |
| Countries with Megacities | 0 | - | 4.99 | 265,083 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,926 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,598 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,197 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,665 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,679 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,642 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,621 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,759 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,609 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,471 |
| Countries by Capital City | 0 | - | 5.00 | 68,757 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,444 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,883 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,417 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,477 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,408 |
| Moved Capital Cities | 0 | - | 4.96 | 74,401 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,844 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,882 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,591 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,499 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,100 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,417 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,996 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,013 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,369 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,258 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,628 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,817 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,288 |
| North American Sports Cities | 0 | - | 4.83 | 172,723 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,427 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,452 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,039 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,649 |
| Cities by Former Name | 0 | - | 4.83 | 91,785 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,522 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,792 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,059 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,963 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,475 |
| World Capitals by Map | 0 | - | 5.00 | 287,781 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,536 |
| Random Capital to Country | 0 | - | 4.99 | 2,595,784 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,955 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,138 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,037 |
| Random Country to Capital | 0 | - | 4.98 | 923,671 |
| Capitals Starting With H | 0 | - | 4.91 | 92,790 |
| Capitals Starting With K | 0 | - | 4.88 | 83,846 |
| Capitals Starting With L | 0 | - | 4.81 | 88,308 |
| Capitals Starting With M | 0 | - | 4.93 | 108,171 |
| Capitals Starting With P | 0 | - | 4.88 | 78,420 |
| Capitals Starting With R | 0 | - | 4.87 | 82,039 |
| Capitals Starting With S | 0 | - | 4.90 | 86,019 |
| Capitals Starting With T | 0 | - | 4.85 | 76,367 |
| Capitals Starting With W | 0 | - | 4.87 | 91,427 |
| Capitals Starting With A | 0 | - | 4.97 | 128,375 |
| Capitals Starting With B | 0 | - | 4.89 | 118,793 |
| Capitals Starting With D | 0 | - | 4.93 | 96,695 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,353 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,207 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,784 |
| Olympic Host Countries | 0 | - | 4.98 | 201,244 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,182 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,869 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 311,294 |
| The Only European Country ... | 0 | - | 4.91 | 217,665 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,982 |
| Hindu Countries | 0 | - | 4.86 | 50,341 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,758 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,763 |
| Countries of Africa | 0 | - | 5.00 | 2,547,326 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,581 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,983 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,252 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,946 |
| Australia A-Z | 0 | - | 4.54 | 50,048 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,747 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,949 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,732 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,822 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,236 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,398 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,548 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,304 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,349 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,571 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,337 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,970 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,366 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,671 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,472 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,268 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,537 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,964 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,181 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,646 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,062 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,448 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,675 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,519 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,332 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,201 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,476 |
| Former Capitals | 0 | - | 4.88 | 71,549 |
| Capital Cities Chain | 0 | - | 4.84 | 83,028 |
| Coldest World Capitals | 0 | - | 4.95 | 133,689 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,824 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,990 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,177 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,321 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,632 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,719 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,638 |
| Countries of the Middle East | 0 | - | 4.96 | 201,841 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,674 |
| Slavic Countries | 0 | - | 4.96 | 111,976 |
| African Island Countries | 0 | - | 4.96 | 101,952 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,994 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,619 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,774 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 51,199 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,274 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,453 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,705 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,333 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,874 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,976 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,740 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,485 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,033 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,104 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,747 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,454 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,538 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,858 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,561 |
