| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,738 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 228,024 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,520 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,608 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,460 |
| World Capitals Quiz | 0 | - | 5.00 | 5,110,434 |
| Europe Capital to Country | 0 | - | 4.99 | 252,353 |
| Asia Capital to Country | 0 | - | 4.96 | 127,634 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,141 |
| European Capitals by Map | 0 | - | 4.99 | 142,342 |
| African Capitals by Map | 0 | - | 4.99 | 142,425 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,046 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,009 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,290 |
| European Coastal Capitals | 0 | - | 4.95 | 91,415 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,238 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,012 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,014 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,209 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,134 |
| Random European Capital to Country | 0 | - | 4.98 | 192,263 |
| Random European Country to Capital | 0 | - | 4.93 | 166,000 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,055 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,521 |
| Random African Capital to Country | 0 | - | 4.97 | 101,419 |
| Random African Country to Capital | 0 | - | 4.95 | 71,830 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,115 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,086 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,331 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,497 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,311 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,665 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,220 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,450 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,633 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,010 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,769 |
| Capitals of the Stans | 0 | - | 4.95 | 27,196 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,366 |
| Countries with Megacities | 0 | - | 4.99 | 267,534 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,021 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,252 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,348 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,354 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,429 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,470 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,034 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,283 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,342 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,273 |
| Countries by Capital City | 0 | - | 5.00 | 69,530 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,009 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,292 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,894 |
| Moved Capital Cities | 0 | - | 4.96 | 74,697 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,837 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,670 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,196 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,767 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,195 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,732 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,801 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,626 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,749 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,413 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,391 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,749 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,954 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,308 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,682 |
| North American Sports Cities | 0 | - | 4.82 | 173,225 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,586 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,000 |
| Name a City - European Countries | 0 | - | 4.89 | 66,285 |
| Cities by Former Name | 0 | - | 4.83 | 92,131 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,962 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,015 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,525 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,878 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,911 |
| World Capitals by Map | 0 | - | 5.00 | 289,722 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,879 |
| Capitals Starting With H | 0 | - | 4.91 | 93,390 |
| Capitals Starting With K | 0 | - | 4.88 | 84,469 |
| Capitals Starting With M | 0 | - | 4.94 | 109,287 |
| Capitals Starting With P | 0 | - | 4.88 | 79,076 |
| Capitals Starting With R | 0 | - | 4.88 | 82,563 |
| Capitals Starting With S | 0 | - | 4.90 | 86,647 |
| Capitals Starting With T | 0 | - | 4.86 | 76,895 |
| Capitals Starting With W | 0 | - | 4.87 | 91,772 |
| Capitals Starting With A | 0 | - | 4.97 | 129,203 |
| Capitals Starting With B | 0 | - | 4.89 | 119,588 |
| Capitals Starting With D | 0 | - | 4.94 | 97,273 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,035 |
| Olympic Host Countries | 0 | - | 4.98 | 202,104 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,137 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,337 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,511 |
| The Only European Country ... | 0 | - | 4.91 | 219,329 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,160 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,694 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,960 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,954 |
| Random Country to Capital | 0 | - | 4.98 | 929,292 |
| Countries of Africa | 0 | - | 5.00 | 2,562,521 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,329 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,763 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,127 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,233 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,906 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,192 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,298 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,407 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,485 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,773 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,353 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,398 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,526 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,947 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,474 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,770 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,831 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,984 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,229 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,778 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,926 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,957 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,576 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,248 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,552 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,898 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,815 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,806 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,589 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,003 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,645 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,221 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,750 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,636 |
| Former Capitals | 0 | - | 4.88 | 71,707 |
| Capital Cities Chain | 0 | - | 4.84 | 83,462 |
| Coldest World Capitals | 0 | - | 4.95 | 134,206 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,216 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,280 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,653 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,547 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,049 |
| Countries of the Middle East | 0 | - | 4.96 | 203,111 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,279 |
| Slavic Countries | 0 | - | 4.96 | 112,447 |
| African Island Countries | 0 | - | 4.96 | 102,657 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,211 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,624 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,399 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,748 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,033 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,466 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,922 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,393 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,818 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,267 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,980 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,681 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,646 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,052 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,925 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,301 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,969 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,556 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,013 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,246 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 45,931 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,240 |
| Boundary Waters | 0 | - | 4.92 | 88,808 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,433 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,770 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,445 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,019 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,767 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,309 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,141 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 105,003 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,003 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,942 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,044 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,528 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,855 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,306 |
| Unusual U.S. City Names | 0 | - | 4.52 | 28,032 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,590 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,635 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.38 | 54,213 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,760 |
| Ancient City to Country | 0 | - | 4.72 | 108,381 |
| Official Cities in the UK | 0 | - | 4.89 | 286,597 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,205 |
| City-States | 0 | - | 4.53 | 37,427 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,606 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,522 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,841 |
