| Five Most Inland Capital Cities by Continent | 0 | - | 4.91 | 12,973 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,473 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,832 |
| Africa Capitals Quiz | 0 | - | 4.99 | 736,926 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,116 |
| World Capitals Quiz | 0 | - | 5.00 | 5,069,067 |
| Europe Capital to Country | 0 | - | 4.99 | 249,879 |
| Asia Capital to Country | 0 | - | 4.96 | 126,579 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,759 |
| European Capitals by Map | 0 | - | 4.99 | 138,929 |
| African Capitals by Map | 0 | - | 4.99 | 133,627 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,246 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,999 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,343 |
| European Coastal Capitals | 0 | - | 4.95 | 90,516 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,552 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,621 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,810 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,799 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,620 |
| Random European Capital to Country | 0 | - | 4.98 | 190,777 |
| Random European Country to Capital | 0 | - | 4.93 | 164,981 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,372 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,694 |
| Random African Capital to Country | 0 | - | 4.97 | 100,656 |
| Random African Country to Capital | 0 | - | 4.94 | 71,170 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,737 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,584,852 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,010 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,463 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,399 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 93,971 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,162 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,781 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,140 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,262 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,242 |
| Capitals of the Stans | 0 | - | 4.95 | 26,814 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,275 |
| Countries with Megacities | 0 | - | 4.99 | 262,525 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,110 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,125 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,409 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,176 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,010 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,134 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,328 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,408 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,124 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,864 |
| Countries by Capital City | 0 | - | 5.00 | 68,127 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,096 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,577 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,092 |
| Moved Capital Cities | 0 | - | 4.96 | 74,137 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,513 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,190 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,610 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,067 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,046 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,033 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,263 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,119 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,646 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,618 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,807 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,343 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,466 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,015 |
| North American Sports Cities | 0 | - | 4.83 | 172,278 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,292 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,327 |
| Name a City - European Countries | 0 | - | 4.90 | 65,310 |
| Cities by Former Name | 0 | - | 4.83 | 91,515 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,366 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,624 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,362 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,486 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,082 |
| World Capitals by Map | 0 | - | 5.00 | 286,071 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,244 |
| Capitals Starting With H | 0 | - | 4.91 | 92,464 |
| Capitals Starting With K | 0 | - | 4.88 | 83,264 |
| Capitals Starting With L | 0 | - | 4.81 | 87,986 |
| Capitals Starting With M | 0 | - | 4.93 | 107,658 |
| Capitals Starting With P | 0 | - | 4.88 | 78,118 |
| Capitals Starting With R | 0 | - | 4.87 | 81,750 |
| Capitals Starting With S | 0 | - | 4.90 | 85,693 |
| Capitals Starting With T | 0 | - | 4.85 | 76,098 |
| Capitals Starting With W | 0 | - | 4.87 | 91,241 |
| Capitals Starting With A | 0 | - | 4.97 | 127,783 |
| Capitals Starting With B | 0 | - | 4.89 | 118,367 |
| Capitals Starting With D | 0 | - | 4.93 | 96,340 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,831 |
| Olympic Host Countries | 0 | - | 4.98 | 200,592 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,751 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,088 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 308,805 |
| The Only European Country ... | 0 | - | 4.91 | 216,383 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,057 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,990 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,627 |
| Random Capital to Country | 0 | - | 4.99 | 2,589,896 |
| Random Country to Capital | 0 | - | 4.98 | 919,657 |
| Countries of Africa | 0 | - | 5.00 | 2,534,151 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,235 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,358 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,845 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,134 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,101 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,981 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,712 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,955 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,609 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,095 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,111 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,540 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,518 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,551 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,350 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,814 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,084 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,254 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,868 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,838 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,881 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,197 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,149 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,661 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,221 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,506 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,178 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,540 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,571 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,900 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,865 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,990 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,817 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,754 |
| Former Capitals | 0 | - | 4.88 | 71,423 |
| Capital Cities Chain | 0 | - | 4.83 | 82,659 |
| Coldest World Capitals | 0 | - | 4.95 | 133,526 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,486 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,726 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,812 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,483 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,477 |
| Countries of the Middle East | 0 | - | 4.96 | 201,014 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,177 |
| Slavic Countries | 0 | - | 4.96 | 111,589 |
| African Island Countries | 0 | - | 4.96 | 101,545 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,851 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,015 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 46,865 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,884 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,034 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,022,161 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,792 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,418 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,383 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,031 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,860 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,580 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,655 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,575 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,169 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,118 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,516 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,154 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,091 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,929 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,202 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,997 |
| Boundary Waters | 0 | - | 4.92 | 88,431 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,126 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,012 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,341 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,414 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,723 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,725 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,198 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,761 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,792 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,392 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,158 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,186 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,366 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,670 |
| Unusual U.S. City Names | 0 | - | 4.51 | 27,788 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,523 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,486 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.36 | 44,682 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,916 |
| Ancient City to Country | 0 | - | 4.70 | 107,991 |
| Official Cities in the UK | 0 | - | 4.89 | 283,432 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,144 |
| City-States | 0 | - | 4.53 | 37,248 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,570 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,115 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,655 |
