| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,535 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,349 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,458 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,296 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,233 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,368 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,733 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,960 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,801 |
| Random European Capital to Country | 0 | - | 4.98 | 191,862 |
| Random European Country to Capital | 0 | - | 4.93 | 165,681 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,888 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,280 |
| Random African Capital to Country | 0 | - | 4.97 | 101,165 |
| Random African Country to Capital | 0 | - | 4.94 | 71,631 |
| World Capitals Quiz | 0 | - | 5.00 | 5,096,885 |
| Europe Capital to Country | 0 | - | 4.99 | 251,638 |
| Asia Capital to Country | 0 | - | 4.96 | 127,224 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,681 |
| European Capitals by Map | 0 | - | 4.99 | 141,502 |
| African Capitals by Map | 0 | - | 4.99 | 141,562 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,649 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,667 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,003 |
| European Coastal Capitals | 0 | - | 4.95 | 91,115 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,089 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,881 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,363 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,065 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,162 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,990 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,575 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,023 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,429 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,875 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,269 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,474 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,383 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,802 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,593 |
| Monarchies of Europe | 0 | - | 4.90 | 98,658 |
| Monarchies of Asia | 0 | - | 4.97 | 71,391 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,191 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,604 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,034 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,553 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,628 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,455 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,468 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,897 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,305 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,279 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,079 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,586 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,625 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,634 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,574 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,634 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,740 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,863 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,605 |
| Countries with Megacities | 0 | - | 4.99 | 266,101 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,358 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,809 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,634 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,934 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,015 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,936 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,824 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,006 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,948 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,832 |
| Countries by Capital City | 0 | - | 5.00 | 69,111 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,681 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,073 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,185 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,646 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,450 |
| Moved Capital Cities | 0 | - | 4.96 | 74,545 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,134 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,202 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 88,089 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,720 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,446 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,514 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,141 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,154 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,682 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,483 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,760 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,032 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,443 |
| North American Sports Cities | 0 | - | 4.83 | 172,961 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,501 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,756 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,226 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,806 |
| Cities by Former Name | 0 | - | 4.83 | 91,915 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,610 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,892 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,116 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,999 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,650 |
| World Capitals by Map | 0 | - | 5.00 | 288,687 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,692 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,572 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,157 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,287 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,244 |
| Random Country to Capital | 0 | - | 4.98 | 925,696 |
| Capitals Starting With H | 0 | - | 4.91 | 93,003 |
| Capitals Starting With K | 0 | - | 4.88 | 84,053 |
| Capitals Starting With L | 0 | - | 4.81 | 91,075 |
| Capitals Starting With M | 0 | - | 4.93 | 108,561 |
| Capitals Starting With P | 0 | - | 4.88 | 78,645 |
| Capitals Starting With R | 0 | - | 4.88 | 82,204 |
| Capitals Starting With S | 0 | - | 4.90 | 86,228 |
| Capitals Starting With T | 0 | - | 4.85 | 76,535 |
| Capitals Starting With W | 0 | - | 4.87 | 91,540 |
| Capitals Starting With A | 0 | - | 4.97 | 128,670 |
| Capitals Starting With B | 0 | - | 4.89 | 119,077 |
| Capitals Starting With D | 0 | - | 4.93 | 96,884 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,502 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,253 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,293 |
| Olympic Host Countries | 0 | - | 4.98 | 201,607 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,632 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,749 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,515 |
| The Only European Country ... | 0 | - | 4.91 | 218,377 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,463 |
| Hindu Countries | 0 | - | 4.87 | 50,474 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,167 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,843 |
| Countries of Africa | 0 | - | 5.00 | 2,553,131 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,660 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 149,795 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,418 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,085 |
| Australia A-Z | 0 | - | 4.54 | 50,103 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,394 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,176 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,831 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,095 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,466 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,593 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,723 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,515 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,585 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,734 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,417 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,097 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,437 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,759 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,619 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,296 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,634 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,037 |
| 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 | 111,264 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,732 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,091 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,824 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,506 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,438 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,648 |
| Former Capitals | 0 | - | 4.88 | 71,618 |
| Capital Cities Chain | 0 | - | 4.84 | 83,203 |
| Coldest World Capitals | 0 | - | 4.95 | 134,075 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,985 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,117 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,390 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,623 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,825 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,323 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,247 |
| Countries of the Middle East | 0 | - | 4.96 | 202,280 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,951 |
| Slavic Countries | 0 | - | 4.96 | 112,189 |
| African Island Countries | 0 | - | 4.96 | 102,254 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,083 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,865 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,082 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,602 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,465 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,708 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,009 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,578 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,116 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,328 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,960 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,076 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,291 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,358 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,864 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,649 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,843 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,314 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,084 |
