| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,166 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,044 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,559 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,008 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,867 |
| Europe Capital to Country | 0 | - | 4.99 | 247,339 |
| Asia Capital to Country | 0 | - | 4.96 | 125,647 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,332 |
| European Capitals by Map | 0 | - | 4.99 | 136,000 |
| African Capitals by Map | 0 | - | 4.99 | 132,079 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,994 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,087 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,539 |
| European Coastal Capitals | 0 | - | 4.95 | 89,668 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,151 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,457 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,588 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,386 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,964 |
| Random European Capital to Country | 0 | - | 4.98 | 189,084 |
| Random European Country to Capital | 0 | - | 4.92 | 147,359 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,300 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,337 |
| Random African Capital to Country | 0 | - | 4.97 | 99,682 |
| Random African Country to Capital | 0 | - | 4.94 | 70,163 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,223 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,498 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,902 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,596 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,570 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,346 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,038 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,090 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,654 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,384 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,718 |
| Capitals of the Stans | 0 | - | 4.95 | 26,375 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,910 |
| Countries with Megacities | 0 | - | 4.99 | 246,305 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,832 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,755 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,290 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,696 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,621 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,835 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,580 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,534 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,499 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,257 |
| Countries by Capital City | 0 | - | 5.00 | 66,495 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,240 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,825 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,356 |
| Moved Capital Cities | 0 | - | 4.96 | 73,530 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,430 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,824 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,301 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,041 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,320 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,717 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,617 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,745 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,744 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,781 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,412 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,515 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,173 |
| North American Sports Cities | 0 | - | 4.83 | 170,790 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,889 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,651 |
| Name a City - European Countries | 0 | - | 4.92 | 64,287 |
| Cities by Former Name | 0 | - | 4.84 | 90,888 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,647 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,198 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,337 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,159 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,816 |
| World Capitals by Map | 0 | - | 5.00 | 282,912 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,610 |
| Capitals Starting With H | 0 | - | 4.90 | 89,824 |
| Capitals Starting With K | 0 | - | 4.85 | 75,562 |
| Capitals Starting With M | 0 | - | 4.93 | 105,871 |
| Capitals Starting With P | 0 | - | 4.88 | 77,072 |
| Capitals Starting With R | 0 | - | 4.87 | 80,862 |
| Capitals Starting With S | 0 | - | 4.89 | 84,682 |
| Capitals Starting With T | 0 | - | 4.84 | 75,191 |
| Capitals Starting With W | 0 | - | 4.89 | 90,510 |
| Capitals Starting With A | 0 | - | 4.97 | 126,379 |
| Capitals Starting With B | 0 | - | 4.89 | 117,141 |
| Capitals Starting With D | 0 | - | 4.93 | 95,229 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,782 |
| Olympic Host Countries | 0 | - | 4.98 | 198,782 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,745 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,379 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 302,924 |
| The Only European Country ... | 0 | - | 4.91 | 213,559 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,901 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,361 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,162 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,637 |
| Random Country to Capital | 0 | - | 4.98 | 910,753 |
| Countries of Africa | 0 | - | 5.00 | 2,505,188 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,137 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,066 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,546 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,011 |
| U.S. Cities With Spanish Names | 0 | - | 4.93 | 22,003 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,780 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,217 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,583 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,758 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,449 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,835 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,786 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,085 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,092 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,191 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,787 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,313 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,488 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,237 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,432 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,343 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,189 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,195 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,533 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,499 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,737 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,131 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,271 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,260 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,106 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,927 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,677 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,537 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,279 |
| Former Capitals | 0 | - | 4.88 | 71,097 |
| Capital Cities Chain | 0 | - | 4.84 | 81,833 |
| Coldest World Capitals | 0 | - | 4.95 | 132,995 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,708 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,719 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,901 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,779 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,094 |
| Countries of the Middle East | 0 | - | 4.96 | 198,751 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,179 |
| Slavic Countries | 0 | - | 4.96 | 110,786 |
| African Island Countries | 0 | - | 4.96 | 100,686 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,463 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,204 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,859 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,026 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,988 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,694 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,605 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,391 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,956 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,692 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,510 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,613 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,688 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,121 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,098 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,217 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,486 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,174 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,333 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,148 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,443 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,245 |
| Boundary Waters | 0 | - | 4.92 | 88,003 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,790 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,196 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,163 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,779 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,760 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,848 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,716 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,918 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,591 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,770 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,291 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,811 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,870 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,494 |
| Unusual U.S. City Names | 0 | - | 4.51 | 27,546 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,403 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,310 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.35 | 44,518 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 219,947 |
| Ancient City to Country | 0 | - | 4.70 | 107,570 |
| Official Cities in the UK | 0 | - | 4.89 | 280,254 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,091 |
| City-States | 0 | - | 4.53 | 37,076 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,546 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,752 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,464 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,055 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,031 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,942 |
