| Five Most Inland Capital Cities by Continent | 0 | - | 4.91 | 12,963 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,469 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,829 |
| Africa Capitals Quiz | 0 | - | 4.99 | 736,878 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,085 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,618 |
| Random European Capital to Country | 0 | - | 4.98 | 190,775 |
| Random European Country to Capital | 0 | - | 4.93 | 164,978 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,371 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,693 |
| Random African Capital to Country | 0 | - | 4.97 | 100,652 |
| Random African Country to Capital | 0 | - | 4.94 | 71,169 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,874 |
| Europe Capital to Country | 0 | - | 4.99 | 249,866 |
| Asia Capital to Country | 0 | - | 4.96 | 126,575 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,756 |
| European Capitals by Map | 0 | - | 4.99 | 138,921 |
| African Capitals by Map | 0 | - | 4.99 | 133,617 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,245 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,995 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,338 |
| European Coastal Capitals | 0 | - | 4.95 | 90,508 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,547 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,615 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,792 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,795 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,708 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,584,774 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,004 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,453 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,397 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 93,968 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,159 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,781 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,139 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,261 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,240 |
| Capitals of the Stans | 0 | - | 4.95 | 26,810 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,267 |
| Countries with Megacities | 0 | - | 4.99 | 262,473 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,097 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,121 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,399 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,171 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,006 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,026 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,124 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,325 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,402 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,117 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,854 |
| Countries by Capital City | 0 | - | 5.00 | 68,115 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,090 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,574 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,085 |
| Moved Capital Cities | 0 | - | 4.96 | 74,130 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,257 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,509 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,117 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,180 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,548 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,049 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,034 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,361 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,485 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,645 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,614 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,802 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,340 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,464 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,014 |
| North American Sports Cities | 0 | - | 4.83 | 172,271 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,291 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,321 |
| Name a City - European Countries | 0 | - | 4.90 | 65,306 |
| Name a Valid World City | 0 | - | 4.83 | 71,096 |
| Cities by Former Name | 0 | - | 4.83 | 91,512 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,364 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,623 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,075 |
| World Capitals by Map | 0 | - | 5.00 | 286,051 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,239 |
| Random Capital to Country | 0 | - | 4.99 | 2,589,841 |
| Random Country to Capital | 0 | - | 4.98 | 919,604 |
| Capitals Starting With H | 0 | - | 4.91 | 92,458 |
| Capitals Starting With K | 0 | - | 4.88 | 83,242 |
| Capitals Starting With L | 0 | - | 4.81 | 87,980 |
| Capitals Starting With M | 0 | - | 4.93 | 107,649 |
| Capitals Starting With P | 0 | - | 4.88 | 78,113 |
| Capitals Starting With R | 0 | - | 4.87 | 81,747 |
| Capitals Starting With S | 0 | - | 4.90 | 85,687 |
| Capitals Starting With T | 0 | - | 4.85 | 76,095 |
| Capitals Starting With W | 0 | - | 4.87 | 91,238 |
| Capitals Starting With A | 0 | - | 4.97 | 127,776 |
| Capitals Starting With B | 0 | - | 4.89 | 118,359 |
| Capitals Starting With D | 0 | - | 4.93 | 96,332 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,816 |
| Olympic Host Countries | 0 | - | 4.98 | 200,588 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,745 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,085 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 308,774 |
| The Only European Country ... | 0 | - | 4.91 | 216,367 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,044 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,977 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,625 |
| Countries of Africa | 0 | - | 5.00 | 2,533,981 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,981 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,711 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,955 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,605 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,093 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,108 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,527 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,514 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,548 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,344 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,814 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,080 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,244 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,863 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,884 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,826 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,373 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,874 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,193 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,146 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,657 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,220 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,502 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,173 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,235 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,354 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,842 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,134 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,538 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,565 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,895 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,856 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,987 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,811 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,751 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,097 |
| Former Capitals | 0 | - | 4.88 | 71,420 |
| Capital Cities Chain | 0 | - | 4.83 | 82,652 |
| Coldest World Capitals | 0 | - | 4.95 | 133,526 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,485 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,722 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,808 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,986 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,427 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,471 |
| Countries of the Middle East | 0 | - | 4.96 | 200,994 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,175 |
| Slavic Countries | 0 | - | 4.96 | 111,585 |
| African Island Countries | 0 | - | 4.96 | 101,541 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,847 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,011 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 46,856 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,875 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,029 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,022,088 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,782 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,411 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,374 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,025 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,858 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,573 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,649 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,571 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,164 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,114 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,512 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,148 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,087 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,923 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,199 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,061 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,946 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,712 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,714 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,191 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,748 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,790 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,389 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,154 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,185 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,364 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,052 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,666 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,912 |
| Ancient City to Country | 0 | - | 4.70 | 107,986 |
| Official Cities in the UK | 0 | - | 4.89 | 283,424 |
| City-States | 0 | - | 4.53 | 37,247 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,115 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,654 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,709 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,180 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,963 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,437 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,106 |
