| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,289 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,116 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,254 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,914 |
| World Capitals Quiz | 0 | - | 5.00 | 5,031,358 |
| Europe Capital to Country | 0 | - | 4.99 | 247,884 |
| Asia Capital to Country | 0 | - | 4.96 | 125,762 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,458 |
| European Capitals by Map | 0 | - | 4.99 | 136,279 |
| African Capitals by Map | 0 | - | 4.99 | 132,185 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,124 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,192 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,615 |
| European Coastal Capitals | 0 | - | 4.95 | 89,758 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,188 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,807 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,803 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,424 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,069 |
| Random European Capital to Country | 0 | - | 4.98 | 189,211 |
| Random European Country to Capital | 0 | - | 4.92 | 147,450 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,401 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,417 |
| Random African Capital to Country | 0 | - | 4.97 | 99,739 |
| Random African Country to Capital | 0 | - | 4.94 | 70,233 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,924 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,067 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,264 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,872 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,669 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,409 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,124 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,181 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,705 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,454 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,765 |
| Capitals of the Stans | 0 | - | 4.95 | 26,408 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,201 |
| Countries with Megacities | 0 | - | 4.99 | 246,887 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,107 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,961 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,520 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,851 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,763 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,951 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,655 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,605 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,625 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,449 |
| Countries by Capital City | 0 | - | 5.00 | 66,650 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,334 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,906 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,409 |
| Moved Capital Cities | 0 | - | 4.96 | 73,587 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,566 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,048 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,630 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,405 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,399 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,839 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,666 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,841 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,934 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,885 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,485 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,606 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,267 |
| North American Sports Cities | 0 | - | 4.83 | 170,907 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,917 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,733 |
| Name a City - European Countries | 0 | - | 4.92 | 64,392 |
| Cities by Former Name | 0 | - | 4.84 | 90,972 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,692 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,243 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,449 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,197 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,949 |
| World Capitals by Map | 0 | - | 5.00 | 283,210 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,672 |
| Capitals Starting With H | 0 | - | 4.90 | 90,978 |
| Capitals Starting With K | 0 | - | 4.85 | 75,693 |
| Capitals Starting With L | 0 | - | 4.81 | 86,841 |
| Capitals Starting With M | 0 | - | 4.93 | 106,066 |
| Capitals Starting With P | 0 | - | 4.88 | 77,196 |
| Capitals Starting With R | 0 | - | 4.87 | 80,979 |
| Capitals Starting With S | 0 | - | 4.89 | 84,810 |
| Capitals Starting With T | 0 | - | 4.84 | 75,298 |
| Capitals Starting With W | 0 | - | 4.89 | 90,613 |
| Capitals Starting With A | 0 | - | 4.97 | 126,559 |
| Capitals Starting With B | 0 | - | 4.89 | 117,297 |
| Capitals Starting With D | 0 | - | 4.93 | 95,383 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,996 |
| Olympic Host Countries | 0 | - | 4.98 | 198,897 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,816 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,564 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,549 |
| The Only European Country ... | 0 | - | 4.91 | 213,839 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,149 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,538 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,210 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,967 |
| Random Country to Capital | 0 | - | 4.98 | 911,614 |
| Countries of Africa | 0 | - | 5.00 | 2,507,918 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,143 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,101 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,580 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,023 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,195 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,801 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,269 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,634 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,819 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,542 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,888 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,082 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,231 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,143 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,336 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,932 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,402 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,592 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,300 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,552 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,472 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,295 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,272 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,608 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,571 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,811 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,217 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,312 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,357 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,199 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,132 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,819 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,687 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,340 |
| Former Capitals | 0 | - | 4.88 | 71,145 |
| Capital Cities Chain | 0 | - | 4.84 | 81,919 |
| Coldest World Capitals | 0 | - | 4.95 | 133,043 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,800 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,882 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,997 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,798 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,335 |
| Countries of the Middle East | 0 | - | 4.96 | 198,929 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,268 |
| Slavic Countries | 0 | - | 4.96 | 110,860 |
| African Island Countries | 0 | - | 4.96 | 100,793 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,499 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,444 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 45,018 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,116 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,098 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,664 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,708 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,492 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,112 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,797 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,629 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,716 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,763 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,156 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,165 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,291 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,578 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,277 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,416 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,247 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,508 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,361 |
| Boundary Waters | 0 | - | 4.92 | 88,042 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,816 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,285 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,296 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,838 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,959 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,001 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,854 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,991 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,609 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,830 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,401 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,848 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,935 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,596 |
| Unusual U.S. City Names | 0 | - | 4.51 | 27,573 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,413 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,331 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.35 | 44,541 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,007 |
| Ancient City to Country | 0 | - | 4.70 | 107,609 |
| Official Cities in the UK | 0 | - | 4.89 | 280,544 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,093 |
| City-States | 0 | - | 4.53 | 37,097 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,552 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,786 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,481 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,097 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,045 |
