| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,436 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,135 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,175 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,967 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,839 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,883 |
| Random European Capital to Country | 0 | - | 4.98 | 191,645 |
| Random European Country to Capital | 0 | - | 4.93 | 165,531 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,797 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,146 |
| Random African Capital to Country | 0 | - | 4.97 | 101,024 |
| Random African Country to Capital | 0 | - | 4.94 | 71,498 |
| World Capitals Quiz | 0 | - | 5.00 | 5,090,006 |
| Europe Capital to Country | 0 | - | 4.99 | 251,251 |
| Asia Capital to Country | 0 | - | 4.96 | 127,011 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,447 |
| European Capitals by Map | 0 | - | 4.99 | 140,820 |
| African Capitals by Map | 0 | - | 4.99 | 139,655 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,250 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,479 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,842 |
| European Coastal Capitals | 0 | - | 4.95 | 90,959 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,960 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,335 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,919 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,986 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,792 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,571 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,593,339 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,250 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,962 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,862 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,295 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,670 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,133 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,383 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,679 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,502 |
| Capitals of the Stans | 0 | - | 4.95 | 27,002 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,218 |
| Countries with Megacities | 0 | - | 4.99 | 265,345 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,045 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,646 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,291 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,720 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,778 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,353 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,745 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,682 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,857 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,723 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,575 |
| Countries by Capital City | 0 | - | 5.00 | 68,849 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,503 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,938 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,523 |
| Moved Capital Cities | 0 | - | 4.96 | 74,433 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,020 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,695 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,372 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,920 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,977 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,411 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,603 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,926 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,663 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,608 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,043 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,444 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,315 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,667 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,862 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,321 |
| North American Sports Cities | 0 | - | 4.83 | 172,786 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,446 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,688 |
| Name a City - European Countries | 0 | - | 4.90 | 65,816 |
| Name a Valid World City | 0 | - | 4.83 | 71,599 |
| Cities by Former Name | 0 | - | 4.83 | 91,812 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,548 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,830 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,523 |
| World Capitals by Map | 0 | - | 5.00 | 288,062 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,596 |
| Random Capital to Country | 0 | - | 4.99 | 2,596,437 |
| Random Country to Capital | 0 | - | 4.98 | 924,132 |
| Capitals Starting With H | 0 | - | 4.91 | 92,834 |
| Capitals Starting With K | 0 | - | 4.88 | 83,882 |
| Capitals Starting With L | 0 | - | 4.81 | 88,352 |
| Capitals Starting With M | 0 | - | 4.93 | 108,248 |
| Capitals Starting With P | 0 | - | 4.88 | 78,466 |
| Capitals Starting With R | 0 | - | 4.87 | 82,073 |
| Capitals Starting With S | 0 | - | 4.90 | 86,056 |
| Capitals Starting With T | 0 | - | 4.85 | 76,398 |
| Capitals Starting With W | 0 | - | 4.87 | 91,452 |
| Capitals Starting With A | 0 | - | 4.97 | 128,427 |
| Capitals Starting With B | 0 | - | 4.89 | 118,843 |
| Capitals Starting With D | 0 | - | 4.93 | 96,734 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,946 |
| Olympic Host Countries | 0 | - | 4.98 | 201,332 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,412 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 116,337 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 311,620 |
| The Only European Country ... | 0 | - | 4.91 | 217,863 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,105 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,895 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,792 |
| Countries of Africa | 0 | - | 5.00 | 2,548,878 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,076 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,040 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,172 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,091 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,386 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,219 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,832 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,938 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,009 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,758 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,884 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,291 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,449 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,579 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,035 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,356 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,412 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,607 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,358 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,003 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,388 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,692 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,506 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,279 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,564 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,994 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,192 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,658 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,108 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,551 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,755 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,604 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,373 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,290 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,522 |
| Former Capitals | 0 | - | 4.88 | 71,563 |
| Capital Cities Chain | 0 | - | 4.84 | 83,071 |
| Coldest World Capitals | 0 | - | 4.95 | 133,990 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,867 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,011 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,222 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 145,040 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,132 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,802 |
| Countries of the Middle East | 0 | - | 4.96 | 201,941 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,756 |
| Slavic Countries | 0 | - | 4.96 | 112,029 |
| African Island Countries | 0 | - | 4.96 | 102,074 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,014 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,849 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 51,872 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,324 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,515 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,027,273 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,396 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,944 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,111 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 60,022 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,767 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,801 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,128 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,192 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,794 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,533 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,687 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,144 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,878 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,555 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,747 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,791 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,366 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,666 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,491 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,105 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,521 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,910 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,659 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,634 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,357 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,595 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,996 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,439 |
| Ancient City to Country | 0 | - | 4.70 | 108,193 |
| Official Cities in the UK | 0 | - | 4.89 | 284,972 |
| City-States | 0 | - | 4.53 | 37,332 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,401 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,737 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,065 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,223 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,254 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,779 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,169 |
