| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,122 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,335 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,697 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,144 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,562 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,232 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,214 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,116 |
| Random European Capital to Country | 0 | - | 4.98 | 189,307 |
| Random European Country to Capital | 0 | - | 4.92 | 147,521 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,433 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,483 |
| Random African Capital to Country | 0 | - | 4.97 | 99,753 |
| Random African Country to Capital | 0 | - | 4.94 | 70,249 |
| Europe Capital to Country | 0 | - | 4.99 | 248,027 |
| Asia Capital to Country | 0 | - | 4.96 | 125,799 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,547 |
| European Capitals by Map | 0 | - | 4.99 | 136,448 |
| African Capitals by Map | 0 | - | 4.99 | 132,242 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,228 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,261 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,673 |
| European Coastal Capitals | 0 | - | 4.95 | 89,820 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,207 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,940 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,945 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,440 |
| World Capitals Quiz | 0 | - | 5.00 | 5,033,437 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,469 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,996 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,700 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,452 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,174 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,215 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,746 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,736 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,517 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,804 |
| Monarchies of Europe | 0 | - | 4.90 | 97,361 |
| Monarchies of Asia | 0 | - | 4.97 | 70,620 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,446 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,419 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,751 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,429 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,574 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,980 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,316 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,398 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,283 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,125 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,287 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,150 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,511 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,511 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,163 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,038 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,127 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,193 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,193 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,132 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,589 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,784 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,445 |
| Countries with Megacities | 0 | - | 4.99 | 247,268 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,288 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,094 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,715 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,019 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,834 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 105,027 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,115 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,009 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,685 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,632 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,690 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,509 |
| Countries by Capital City | 0 | - | 5.00 | 66,726 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,372 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,937 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,568 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,807 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,436 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,785 |
| Moved Capital Cities | 0 | - | 4.96 | 73,617 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,298 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,654 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,875 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,565 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,898 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,642 |
| Hindu Countries | 0 | - | 4.86 | 49,607 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,881 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,035 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,942 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,520 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,663 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,334 |
| North American Sports Cities | 0 | - | 4.83 | 170,957 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,929 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,772 |
| Cities by Former Name | 0 | - | 4.84 | 91,006 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,702 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,260 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,006 |
| World Capitals by Map | 0 | - | 5.00 | 283,330 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,699 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,629 |
| Random Country to Capital | 0 | - | 4.98 | 912,018 |
| Capitals Starting With H | 0 | - | 4.90 | 91,186 |
| Capitals Starting With K | 0 | - | 4.85 | 75,722 |
| Capitals Starting With L | 0 | - | 4.81 | 86,884 |
| Capitals Starting With M | 0 | - | 4.93 | 106,141 |
| Capitals Starting With P | 0 | - | 4.88 | 77,237 |
| Capitals Starting With R | 0 | - | 4.87 | 81,012 |
| Capitals Starting With S | 0 | - | 4.89 | 84,848 |
| Capitals Starting With T | 0 | - | 4.84 | 75,334 |
| Capitals Starting With W | 0 | - | 4.89 | 90,646 |
| Capitals Starting With A | 0 | - | 4.97 | 126,595 |
| Capitals Starting With B | 0 | - | 4.89 | 117,341 |
| Capitals Starting With D | 0 | - | 4.93 | 95,434 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,420 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,102 |
| Olympic Host Countries | 0 | - | 4.98 | 198,951 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,859 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,663 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,848 |
| The Only European Country ... | 0 | - | 4.91 | 213,979 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,239 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,640 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,235 |
| Countries of Africa | 0 | - | 5.00 | 2,509,284 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,388 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,929 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,258 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,329 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,311 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,449 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,710 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,969 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,986 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,202 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,305 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,175 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,405 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,009 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,458 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,645 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,591 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,540 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,353 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,328 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,666 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,607 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,858 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,267 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,328 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,399 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,241 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,215 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,904 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,737 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,368 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,272 |
| Former Capitals | 0 | - | 4.88 | 71,153 |
| Capital Cities Chain | 0 | - | 4.84 | 81,952 |
| Coldest World Capitals | 0 | - | 4.95 | 133,066 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,829 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,025 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,595 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,036 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,527 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,451 |
| Countries of the Middle East | 0 | - | 4.96 | 199,038 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,311 |
| Slavic Countries | 0 | - | 4.96 | 110,898 |
| African Island Countries | 0 | - | 4.96 | 100,833 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,514 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,965 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,563 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 45,085 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,175 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,180 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,790 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,545 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,200 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,530 |
| Countries that Start with B | 0 | - | 4.95 | 2,280,460 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,835 |
| Countries that Start with D | 0 | - | 4.96 | 701,907 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,936 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,282 |
| Countries that Start with H | 0 | - | 4.96 | 598,256 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,605 |
| Countries that Start with J | 0 | - | 4.98 | 596,311 |
| Countries that Start with K | 0 | - | 4.97 | 809,658 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,212 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,094 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,866 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,980 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,465 |
