| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,587 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,688 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,484 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,337 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,714 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,744 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,754 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,988 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,873 |
| Random European Capital to Country | 0 | - | 4.98 | 191,947 |
| Random European Country to Capital | 0 | - | 4.93 | 165,727 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,917 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,329 |
| Random African Capital to Country | 0 | - | 4.97 | 101,193 |
| Random African Country to Capital | 0 | - | 4.95 | 71,659 |
| World Capitals Quiz | 0 | - | 5.00 | 5,099,445 |
| Europe Capital to Country | 0 | - | 4.99 | 251,765 |
| Asia Capital to Country | 0 | - | 4.96 | 127,273 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,758 |
| European Capitals by Map | 0 | - | 4.99 | 141,704 |
| African Capitals by Map | 0 | - | 4.99 | 141,779 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,763 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,718 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,047 |
| European Coastal Capitals | 0 | - | 4.95 | 91,172 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,108 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,085 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,481 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,093 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,190 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,283 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,724 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,101 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,463 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,947 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,298 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,497 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,404 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,833 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,628 |
| Monarchies of Europe | 0 | - | 4.90 | 98,717 |
| Monarchies of Asia | 0 | - | 4.97 | 71,427 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,217 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,509 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,947 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,593 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,670 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,520 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,512 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,970 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,393 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,423 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,171 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,798 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,710 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,699 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,649 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,675 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,367 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,038 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,834 |
| Countries with Megacities | 0 | - | 4.99 | 266,461 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,541 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,936 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,843 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,046 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,097 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,190 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,868 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,061 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,034 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,937 |
| Countries by Capital City | 0 | - | 5.00 | 69,188 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,734 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,110 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,348 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,700 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,463 |
| Moved Capital Cities | 0 | - | 4.96 | 74,575 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,229 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,256 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 92,597 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,836 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,789 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,532 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,205 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,214 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,796 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,530 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,811 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,093 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,496 |
| North American Sports Cities | 0 | - | 4.83 | 173,014 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,518 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,842 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,307 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,839 |
| Cities by Former Name | 0 | - | 4.83 | 91,954 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,641 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,922 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,123 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,007 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,701 |
| World Capitals by Map | 0 | - | 5.00 | 288,907 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,741 |
| Random Capital to Country | 0 | - | 4.99 | 2,599,324 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,183 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,310 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,293 |
| Random Country to Capital | 0 | - | 4.98 | 926,410 |
| Capitals Starting With H | 0 | - | 4.91 | 93,193 |
| Capitals Starting With K | 0 | - | 4.89 | 84,266 |
| Capitals Starting With M | 0 | - | 4.94 | 108,929 |
| Capitals Starting With P | 0 | - | 4.88 | 78,861 |
| Capitals Starting With R | 0 | - | 4.88 | 82,396 |
| Capitals Starting With S | 0 | - | 4.90 | 86,432 |
| Capitals Starting With T | 0 | - | 4.85 | 76,729 |
| Capitals Starting With W | 0 | - | 4.87 | 91,651 |
| Capitals Starting With A | 0 | - | 4.97 | 128,935 |
| Capitals Starting With B | 0 | - | 4.89 | 119,331 |
| Capitals Starting With D | 0 | - | 4.94 | 97,064 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,536 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,271 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,437 |
| Olympic Host Countries | 0 | - | 4.98 | 201,719 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,687 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,836 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,858 |
| The Only European Country ... | 0 | - | 4.91 | 218,547 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,593 |
| Hindu Countries | 0 | - | 4.87 | 50,510 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,257 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,864 |
| Countries of Africa | 0 | - | 5.00 | 2,554,861 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,692 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,502 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,474 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,119 |
| Australia A-Z | 0 | - | 4.54 | 50,119 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,551 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,257 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,853 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,179 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,531 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,648 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,777 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,561 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,646 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,786 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,450 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,117 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,460 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,796 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,657 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,302 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,663 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,056 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,213 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,734 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,319 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,778 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,203 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,884 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,549 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,479 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,708 |
| Former Capitals | 0 | - | 4.88 | 71,632 |
| Capital Cities Chain | 0 | - | 4.84 | 83,250 |
| Coldest World Capitals | 0 | - | 4.95 | 134,099 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,037 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,150 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,440 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,688 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,210 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,430 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,389 |
| Countries of the Middle East | 0 | - | 4.96 | 202,379 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,008 |
| Slavic Countries | 0 | - | 4.96 | 112,235 |
| African Island Countries | 0 | - | 4.96 | 102,308 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,118 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,938 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,165 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 52,762 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,515 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,763 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,643 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,647 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,185 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,415 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,023 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,160 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,351 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,414 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,890 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,678 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,896 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,349 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,140 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,778 |
