| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,562 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,473 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,321 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,477 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,596 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,972 |
| Random European Capital to Country | 0 | - | 4.98 | 191,904 |
| Random European Country to Capital | 0 | - | 4.93 | 165,706 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,910 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,311 |
| Random African Capital to Country | 0 | - | 4.97 | 101,187 |
| Random African Country to Capital | 0 | - | 4.95 | 71,641 |
| World Capitals Quiz | 0 | - | 5.00 | 5,098,342 |
| Europe Capital to Country | 0 | - | 4.99 | 251,718 |
| Asia Capital to Country | 0 | - | 4.96 | 127,253 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,736 |
| European Capitals by Map | 0 | - | 4.99 | 141,620 |
| African Capitals by Map | 0 | - | 4.99 | 141,704 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,722 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,698 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,032 |
| European Coastal Capitals | 0 | - | 4.95 | 91,147 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,100 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,993 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,415 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,086 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,065 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,537 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,170 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,670 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,077 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,446 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,920 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,282 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,489 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,819 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,617 |
| Capitals of the Stans | 0 | - | 4.95 | 27,080 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,762 |
| Countries with Megacities | 0 | - | 4.99 | 266,318 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,480 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,889 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,773 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,999 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,050 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,501 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,042 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,848 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,034 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,007 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,897 |
| Countries by Capital City | 0 | - | 5.00 | 69,159 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,707 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,088 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,677 |
| Moved Capital Cities | 0 | - | 4.96 | 74,558 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,363 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,760 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,473 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,176 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,081 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,970 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,271 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,235 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,747 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,684 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,196 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,743 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,505 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,792 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,073 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,479 |
| North American Sports Cities | 0 | - | 4.83 | 172,982 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,511 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,828 |
| Name a City - European Countries | 0 | - | 4.90 | 65,998 |
| Name a Valid World City | 0 | - | 4.84 | 71,802 |
| Cities by Former Name | 0 | - | 4.83 | 91,942 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,628 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,908 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,684 |
| World Capitals by Map | 0 | - | 5.00 | 288,806 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,725 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,997 |
| Random Country to Capital | 0 | - | 4.98 | 926,043 |
| Capitals Starting With H | 0 | - | 4.91 | 93,130 |
| Capitals Starting With K | 0 | - | 4.88 | 84,198 |
| Capitals Starting With L | 0 | - | 4.79 | 93,738 |
| Capitals Starting With M | 0 | - | 4.93 | 108,808 |
| Capitals Starting With P | 0 | - | 4.88 | 78,787 |
| Capitals Starting With R | 0 | - | 4.88 | 82,342 |
| Capitals Starting With S | 0 | - | 4.90 | 86,364 |
| Capitals Starting With T | 0 | - | 4.85 | 76,667 |
| Capitals Starting With W | 0 | - | 4.87 | 91,619 |
| Capitals Starting With A | 0 | - | 4.97 | 128,841 |
| Capitals Starting With B | 0 | - | 4.89 | 119,240 |
| Capitals Starting With D | 0 | - | 4.93 | 96,997 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,383 |
| Olympic Host Countries | 0 | - | 4.98 | 201,679 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,668 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,808 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,711 |
| The Only European Country ... | 0 | - | 4.91 | 218,485 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,544 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,220 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,853 |
| Countries of Africa | 0 | - | 5.00 | 2,554,023 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,120 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,170 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,296 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,271 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,511 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,257 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,483 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,224 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,844 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,142 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,503 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,626 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,753 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,125 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,538 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,621 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,762 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,434 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,109 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,448 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,786 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,644 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,299 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,647 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,048 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,212 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,722 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,292 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,762 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,144 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,855 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,534 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,458 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,677 |
| Former Capitals | 0 | - | 4.88 | 71,625 |
| Capital Cities Chain | 0 | - | 4.84 | 83,233 |
| Coldest World Capitals | 0 | - | 4.95 | 134,086 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,004 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,138 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,424 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,242 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,053 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,337 |
| Countries of the Middle East | 0 | - | 4.96 | 202,340 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,983 |
| Slavic Countries | 0 | - | 4.96 | 112,217 |
| African Island Countries | 0 | - | 4.96 | 102,289 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,106 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,133 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,697 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,493 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,743 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,372 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,619 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,152 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,382 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,997 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,129 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,327 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,399 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,882 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,664 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,869 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,334 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,115 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,748 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,022 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,995 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,641 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,076 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,796 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,448 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,723 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,945 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,759 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,865 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,425 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,722 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,134 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,582 |
| Ancient City to Country | 0 | - | 4.70 | 108,275 |
| Official Cities in the UK | 0 | - | 4.89 | 285,691 |
| City-States | 0 | - | 4.53 | 37,372 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,456 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,774 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,177 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,244 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,351 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,895 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,196 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,580 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,714 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,274 |
