| Name a Valid European Capital | 0 | - | 4.95 | 152,079 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,291 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.90 | 12,403 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,725 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,927 |
| Asia Capitals Quiz | 0 | - | 4.98 | 691,035 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,551 |
| Random European Capital to Country | 0 | - | 4.98 | 190,635 |
| Random European Country to Capital | 0 | - | 4.93 | 164,626 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,223 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,602 |
| Random African Capital to Country | 0 | - | 4.97 | 100,488 |
| Random African Country to Capital | 0 | - | 4.94 | 71,097 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,794 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,648 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,904 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,477 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,369 |
| Europe Capital to Country | 0 | - | 4.99 | 249,578 |
| Asia Capital to Country | 0 | - | 4.96 | 126,474 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,587 |
| European Capitals by Map | 0 | - | 4.99 | 138,588 |
| African Capitals by Map | 0 | - | 4.99 | 133,368 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,075 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,880 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,240 |
| European Coastal Capitals | 0 | - | 4.95 | 90,393 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,503 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,187 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,563 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,743 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,560 |
| World Capitals Quiz | 0 | - | 5.00 | 5,063,319 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,451 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,097 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,246 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,892 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,996 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,696 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,080 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,095 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,170 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,838 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,061 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,908 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,780 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,902 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,617 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,157 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,051 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,007 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,781 |
| Name a Valid African Country | 0 | - | 4.98 | 153,778 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,365 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,209 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,445 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,076 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,333 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,868 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,836 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,618 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 121,337 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,165 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,704 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,004 |
| Countries with Megacities | 0 | - | 4.99 | 259,399 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,865 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,982 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,154 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,982 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,848 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,963 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,242 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,269 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,970 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,634 |
| Countries by Capital City | 0 | - | 5.00 | 67,920 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,972 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,463 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,650 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,961 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,968 |
| Moved Capital Cities | 0 | - | 4.96 | 74,059 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,025 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,073 |
| Which City in Europe? | 0 | - | 4.83 | 107,173 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,939 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,549 |
| Countries that Beat China | 0 | - | 4.86 | 115,496 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,471 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,497 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,499 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,551 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,415 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,675 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,261 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,369 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,926 |
| Resort Towns by Country | 0 | - | 4.30 | 39,997 |
| North American Sports Cities | 0 | - | 4.83 | 171,753 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,247 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,251 |
| Name a City - European Countries | 0 | - | 4.90 | 65,199 |
| Cities by Former Name | 0 | - | 4.83 | 91,424 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,328 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,578 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,892 |
| World Capitals by Map | 0 | - | 5.00 | 285,619 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,158 |
| Random Capital to Country | 0 | - | 4.99 | 2,588,072 |
| Random Country to Capital | 0 | - | 4.98 | 918,376 |
| Capitals Starting With H | 0 | - | 4.91 | 92,160 |
| Capitals Starting With K | 0 | - | 4.87 | 80,968 |
| Capitals Starting With L | 0 | - | 4.81 | 87,640 |
| Capitals Starting With M | 0 | - | 4.93 | 107,214 |
| Capitals Starting With P | 0 | - | 4.88 | 77,844 |
| Capitals Starting With R | 0 | - | 4.87 | 81,516 |
| Capitals Starting With S | 0 | - | 4.90 | 85,446 |
| Capitals Starting With T | 0 | - | 4.85 | 75,886 |
| Capitals Starting With W | 0 | - | 4.87 | 91,083 |
| Capitals Starting With A | 0 | - | 4.97 | 127,446 |
| Capitals Starting With B | 0 | - | 4.89 | 118,072 |
| Capitals Starting With D | 0 | - | 4.93 | 96,085 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,632 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,560 |
| Olympic Host Countries | 0 | - | 4.98 | 200,371 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,620 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,847 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 308,030 |
| The Only European Country ... | 0 | - | 4.91 | 216,014 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,758 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,783 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,582 |
| Countries of Africa | 0 | - | 5.00 | 2,530,347 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,797 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,108 |
| Which City in Canada? | 0 | - | 4.82 | 56,944 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,647 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,170 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,390 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,498 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,209 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,702 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,969 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,155 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,823 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,671 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,732 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,101 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,078 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,438 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,154 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,435 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,080 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,513 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,417 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,784 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,601 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,828 |
| Random European City to Country | 0 | - | 4.69 | 117,465 |
| Random Asian City to Country | 0 | - | 4.56 | 44,458 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,698 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,696 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,961 |
| Former Capitals | 0 | - | 4.88 | 71,380 |
| Capital Cities Chain | 0 | - | 4.83 | 82,495 |
| Coldest World Capitals | 0 | - | 4.95 | 133,464 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,395 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,685 |
| 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 | 218,192 |
| Countries of the Middle East | 0 | - | 4.96 | 200,752 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,008 |
| Slavic Countries | 0 | - | 4.96 | 111,499 |
| African Island Countries | 0 | - | 4.96 | 101,436 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,791 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,812 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 46,479 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,780 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,902 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,665 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,282 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,184 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,896 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,901 |
| Countries that Start with C | 0 | - | 4.96 | 1,819,206 |
| Countries that Start with D | 0 | - | 4.96 | 707,627 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,845 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,502 |
| Countries that Start with H | 0 | - | 4.96 | 603,077 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,173 |
| Countries that Start with J | 0 | - | 4.98 | 600,937 |
| Countries that Start with K | 0 | - | 4.97 | 814,094 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,901 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,836 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,346 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,402 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,479 |
| Countries that Start with U | 0 | - | 4.97 | 903,370 |
