| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,697 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,220 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,489 |
| Africa Capitals Quiz | 0 | - | 4.99 | 738,317 |
| Asia Capitals Quiz | 0 | - | 4.98 | 693,555 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,944 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,706 |
| Random European Capital to Country | 0 | - | 4.98 | 191,009 |
| Random European Country to Capital | 0 | - | 4.93 | 165,217 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,503 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,807 |
| Random African Capital to Country | 0 | - | 4.97 | 100,773 |
| Random African Country to Capital | 0 | - | 4.94 | 71,294 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,798 |
| Europe Capital to Country | 0 | - | 4.99 | 250,493 |
| Asia Capital to Country | 0 | - | 4.96 | 126,726 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,983 |
| European Capitals by Map | 0 | - | 4.99 | 139,430 |
| African Capitals by Map | 0 | - | 4.99 | 133,912 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,491 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,140 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,483 |
| European Coastal Capitals | 0 | - | 4.95 | 90,661 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,613 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,235 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,188 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,866 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,860 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,010 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,789 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,327 |
| World Capitals Quiz | 0 | - | 5.00 | 5,077,179 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,765 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,038 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,533 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,094 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,355 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,881 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,219 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,424 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,331 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,376 |
| Capitals of the Stans | 0 | - | 4.95 | 26,866 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,714 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,587,817 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,106 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,153 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,833 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,206 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,350 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,085 |
| Name a Valid African Country | 0 | - | 4.98 | 154,168 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,813 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,552 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,536 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,620 |
| Countries with Megacities | 0 | - | 4.99 | 263,850 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,472 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,327 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,742 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,368 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,246 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,337 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,459 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,558 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,310 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,107 |
| Countries by Capital City | 0 | - | 5.00 | 68,397 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,228 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,703 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,650 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,563 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,272 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,544 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,225 |
| Moved Capital Cities | 0 | - | 4.96 | 74,249 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,679 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,585 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,102 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,456 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,154 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,905 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,016 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,222 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,151 |
| Which City in Europe? | 0 | - | 4.83 | 107,449 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,573 |
| Countries that Beat China | 0 | - | 4.85 | 115,939 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,896 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,985 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,009 |
| Countries that Beat Canada | 0 | - | 4.91 | 97,973 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,534 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,541 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,394 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,779 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,948 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,985 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,447 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,599 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,124 |
| Resort Towns by Country | 0 | - | 4.30 | 40,026 |
| North American Sports Cities | 0 | - | 4.83 | 172,464 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,346 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,440 |
| Name a City - European Countries | 0 | - | 4.90 | 65,448 |
| Name a Valid World City | 0 | - | 4.83 | 71,291 |
| Cities by Former Name | 0 | - | 4.83 | 91,611 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,422 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,686 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,276 |
| World Capitals by Map | 0 | - | 5.00 | 286,734 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,361 |
| Random Capital to Country | 0 | - | 4.99 | 2,592,468 |
| Random Country to Capital | 0 | - | 4.98 | 921,228 |
| Capitals Starting With H | 0 | - | 4.91 | 92,621 |
| Capitals Starting With K | 0 | - | 4.88 | 83,633 |
| Capitals Starting With L | 0 | - | 4.81 | 88,153 |
| Capitals Starting With M | 0 | - | 4.93 | 107,899 |
| Capitals Starting With P | 0 | - | 4.88 | 78,256 |
| Capitals Starting With R | 0 | - | 4.87 | 81,896 |
| Capitals Starting With S | 0 | - | 4.90 | 85,851 |
| Capitals Starting With T | 0 | - | 4.85 | 76,214 |
| Capitals Starting With W | 0 | - | 4.87 | 91,339 |
| Capitals Starting With A | 0 | - | 4.97 | 128,152 |
| Capitals Starting With B | 0 | - | 4.89 | 118,580 |
| Capitals Starting With D | 0 | - | 4.93 | 96,514 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,705 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,200 |
| Olympic Host Countries | 0 | - | 4.98 | 200,872 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,908 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,376 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 309,826 |
| The Only European Country ... | 0 | - | 4.91 | 216,880 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,431 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,283 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,681 |
| Countries of Africa | 0 | - | 5.00 | 2,539,601 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,916 |
| British Geography Quiz #1 | 0 | - | 4.51 | 48,374 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,188 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,494 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,003 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,703 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,640 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,523 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,965 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,215 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,378 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,922 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,040 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,063 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,361 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,227 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,801 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,283 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,576 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,298 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,578 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,774 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,047 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,188 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,177 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,963 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,849 |
| Former Capitals | 0 | - | 4.88 | 71,482 |
| Capital Cities Chain | 0 | - | 4.84 | 82,803 |
| Coldest World Capitals | 0 | - | 4.95 | 133,583 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,626 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 201,289 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,968 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,310 |
| Which City in Canada? | 0 | - | 4.83 | 57,100 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,913 |
| Countries of the Middle East | 0 | - | 4.96 | 201,296 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,376 |
| Slavic Countries | 0 | - | 4.96 | 111,732 |
| African Island Countries | 0 | - | 4.96 | 101,707 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,909 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,354 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 47,137 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,035 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,200 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,024,074 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,989 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,568 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,619 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,208 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,103 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,741 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,821 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,645 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,278 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,266 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,641 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,314 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,212 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,048 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,326 |
| Countries that Beat Egypt | 0 | - | 4.88 | 57,046 |
