| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,431 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,131 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,370 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,170 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,938 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,777 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,663 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,878 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,604 |
| Random European Capital to Country | 0 | - | 4.98 | 191,642 |
| Random European Country to Capital | 0 | - | 4.93 | 165,525 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,793 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,138 |
| Random African Capital to Country | 0 | - | 4.97 | 101,019 |
| Random African Country to Capital | 0 | - | 4.94 | 71,494 |
| World Capitals Quiz | 0 | - | 5.00 | 5,089,737 |
| Europe Capital to Country | 0 | - | 4.99 | 251,229 |
| Asia Capital to Country | 0 | - | 4.96 | 127,000 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,431 |
| European Capitals by Map | 0 | - | 4.99 | 140,757 |
| African Capitals by Map | 0 | - | 4.99 | 139,390 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,217 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,469 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,831 |
| European Coastal Capitals | 0 | - | 4.95 | 90,955 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,924 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,288 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,907 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,986 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,059 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,218 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,946 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,836 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,292 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,666 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,131 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,383 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,299 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,672 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,498 |
| Monarchies of Europe | 0 | - | 4.90 | 98,472 |
| Monarchies of Asia | 0 | - | 4.97 | 71,307 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,095 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,534 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,593,234 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,434 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,496 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,252 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,351 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,642 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,008 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,016 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,918 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,029 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,501 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,469 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,394 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,555 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,892 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,392 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,207 |
| Countries with Megacities | 0 | - | 4.99 | 265,312 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,030 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,640 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,279 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,712 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,766 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,728 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,672 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,845 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,712 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,562 |
| Countries by Capital City | 0 | - | 5.00 | 68,840 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,495 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,929 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,586 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,520 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,418 |
| Moved Capital Cities | 0 | - | 4.96 | 74,431 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,903 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,916 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,668 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,534 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,158 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,433 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,026 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,040 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,436 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,309 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,660 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,859 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,316 |
| North American Sports Cities | 0 | - | 4.83 | 172,780 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,445 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,543 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,070 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,683 |
| Cities by Former Name | 0 | - | 4.83 | 91,809 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,542 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,827 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,075 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,972 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,515 |
| World Capitals by Map | 0 | - | 5.00 | 288,027 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,591 |
| Random Capital to Country | 0 | - | 4.99 | 2,596,365 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,034 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,171 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,085 |
| Random Country to Capital | 0 | - | 4.98 | 924,050 |
| Capitals Starting With H | 0 | - | 4.91 | 92,825 |
| Capitals Starting With K | 0 | - | 4.88 | 83,879 |
| Capitals Starting With L | 0 | - | 4.81 | 88,344 |
| Capitals Starting With M | 0 | - | 4.93 | 108,234 |
| Capitals Starting With P | 0 | - | 4.88 | 78,458 |
| Capitals Starting With R | 0 | - | 4.87 | 82,066 |
| Capitals Starting With S | 0 | - | 4.90 | 86,050 |
| Capitals Starting With T | 0 | - | 4.84 | 76,394 |
| Capitals Starting With W | 0 | - | 4.87 | 91,447 |
| Capitals Starting With A | 0 | - | 4.97 | 128,419 |
| Capitals Starting With B | 0 | - | 4.88 | 118,836 |
| Capitals Starting With D | 0 | - | 4.93 | 96,728 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,381 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,218 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,925 |
| Olympic Host Countries | 0 | - | 4.98 | 201,323 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,383 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 116,280 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 311,587 |
| The Only European Country ... | 0 | - | 4.91 | 217,843 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,082 |
| Hindu Countries | 0 | - | 4.86 | 50,368 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,876 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,787 |
| Countries of Africa | 0 | - | 5.00 | 2,548,505 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,607 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 145,035 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,292 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,971 |
| Australia A-Z | 0 | - | 4.54 | 50,066 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,914 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,003 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,753 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,873 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,285 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,442 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,576 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,346 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,406 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,602 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,352 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,996 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,384 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,688 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,500 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,276 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,556 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,988 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,190 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,657 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,104 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,539 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,746 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,597 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,372 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,275 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,514 |
| Former Capitals | 0 | - | 4.88 | 71,561 |
| Capital Cities Chain | 0 | - | 4.84 | 83,069 |
| Coldest World Capitals | 0 | - | 4.95 | 133,939 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,861 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,008 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,217 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,364 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,030 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,806 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,777 |
| Countries of the Middle East | 0 | - | 4.96 | 201,925 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,743 |
| Slavic Countries | 0 | - | 4.96 | 112,024 |
| African Island Countries | 0 | - | 4.96 | 102,057 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,012 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,677 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,840 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 51,817 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,314 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,503 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,027,199 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,387 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,939 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,093 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,789 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,776 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,116 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,185 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,790 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,524 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,665 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,102 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,840 |
