| Name a Valid European Capital | 0 | - | 4.95 | 152,091 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,294 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.90 | 12,484 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,732 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,975 |
| Asia Capitals Quiz | 0 | - | 4.98 | 691,104 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,555 |
| Random European Capital to Country | 0 | - | 4.98 | 190,647 |
| Random European Country to Capital | 0 | - | 4.93 | 164,654 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,225 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,606 |
| Random African Capital to Country | 0 | - | 4.97 | 100,500 |
| Random African Country to Capital | 0 | - | 4.94 | 71,098 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,801 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,649 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,911 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,483 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,453 |
| Europe Capital to Country | 0 | - | 4.99 | 249,594 |
| Asia Capital to Country | 0 | - | 4.96 | 126,480 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,604 |
| European Capitals by Map | 0 | - | 4.99 | 138,603 |
| African Capitals by Map | 0 | - | 4.99 | 133,387 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,085 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,892 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,247 |
| European Coastal Capitals | 0 | - | 4.95 | 90,396 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,505 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,202 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,577 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,747 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,563 |
| World Capitals Quiz | 0 | - | 5.00 | 5,063,602 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,476 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,116 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,248 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,898 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,003 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,705 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,081 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,101 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,184 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,843 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,073 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,974 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,873 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,903 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,621 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,161 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,053 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,048 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,791 |
| Name a Valid African Country | 0 | - | 4.98 | 153,791 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,378 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,211 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,445 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,079 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,336 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,874 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,840 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,624 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 121,343 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,232 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,727 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,015 |
| Countries with Megacities | 0 | - | 4.99 | 259,782 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,887 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,989 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,167 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,998 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,857 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,969 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,246 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,278 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,975 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,639 |
| Countries by Capital City | 0 | - | 5.00 | 67,930 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,973 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,466 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,665 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,964 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,972 |
| Moved Capital Cities | 0 | - | 4.96 | 74,066 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,029 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,076 |
| Which City in Europe? | 0 | - | 4.83 | 107,179 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,960 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,559 |
| Countries that Beat China | 0 | - | 4.86 | 115,510 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,476 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,509 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,507 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,552 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,423 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,681 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,267 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,370 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,930 |
| Resort Towns by Country | 0 | - | 4.30 | 39,997 |
| North American Sports Cities | 0 | - | 4.83 | 171,762 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,253 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,252 |
| Name a City - European Countries | 0 | - | 4.90 | 65,206 |
| Cities by Former Name | 0 | - | 4.83 | 91,429 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,330 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,580 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,902 |
| World Capitals by Map | 0 | - | 5.00 | 285,644 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,167 |
| Random Capital to Country | 0 | - | 4.99 | 2,588,170 |
| Random Country to Capital | 0 | - | 4.98 | 918,444 |
| Capitals Starting With H | 0 | - | 4.91 | 92,188 |
| Capitals Starting With K | 0 | - | 4.87 | 81,324 |
| Capitals Starting With L | 0 | - | 4.81 | 87,675 |
| Capitals Starting With M | 0 | - | 4.93 | 107,263 |
| Capitals Starting With P | 0 | - | 4.88 | 77,872 |
| Capitals Starting With R | 0 | - | 4.87 | 81,532 |
| Capitals Starting With S | 0 | - | 4.90 | 85,471 |
| Capitals Starting With T | 0 | - | 4.85 | 75,904 |
| Capitals Starting With W | 0 | - | 4.87 | 91,096 |
| Capitals Starting With A | 0 | - | 4.97 | 127,483 |
| Capitals Starting With B | 0 | - | 4.89 | 118,103 |
| Capitals Starting With D | 0 | - | 4.93 | 96,107 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,723 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,577 |
| Olympic Host Countries | 0 | - | 4.98 | 200,385 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,629 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,862 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 308,076 |
| The Only European Country ... | 0 | - | 4.91 | 216,027 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,782 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,792 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,584 |
| Countries of Africa | 0 | - | 5.00 | 2,530,511 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,802 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,112 |
| Which City in Canada? | 0 | - | 4.82 | 56,945 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,704 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,188 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,396 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,501 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,221 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,707 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,973 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,160 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,827 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,676 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,741 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,104 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,084 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,458 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,155 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,439 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,082 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,513 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,423 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,790 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,613 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,832 |
| Random European City to Country | 0 | - | 4.69 | 117,470 |
| Random Asian City to Country | 0 | - | 4.56 | 44,459 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,700 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,699 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,967 |
| Former Capitals | 0 | - | 4.88 | 71,382 |
| Capital Cities Chain | 0 | - | 4.83 | 82,501 |
| Coldest World Capitals | 0 | - | 4.95 | 133,467 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,403 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,692 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,896 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,497 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,202 |
| Countries of the Middle East | 0 | - | 4.96 | 200,768 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,021 |
| Slavic Countries | 0 | - | 4.96 | 111,502 |
| African Island Countries | 0 | - | 4.96 | 101,444 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,794 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,819 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 46,523 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,787 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,909 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,672 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,292 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,197 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,987 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,965 |
| Countries that Start with C | 0 | - | 4.96 | 1,819,268 |
| Countries that Start with D | 0 | - | 4.96 | 707,674 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,889 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,552 |
| Countries that Start with H | 0 | - | 4.96 | 603,120 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,211 |
| Countries that Start with J | 0 | - | 4.98 | 600,970 |
| Countries that Start with K | 0 | - | 4.97 | 814,173 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,940 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,878 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,394 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,448 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,510 |
| Countries that Start with U | 0 | - | 4.97 | 903,393 |
