| World Capitals Quiz | 0 | - | 5.00 | 5,099,149 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,395 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,850 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,580 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,817 |
| Countries with Megacities | 0 | - | 4.99 | 266,420 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,523 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,920 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,815 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,040 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,088 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,164 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,860 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,053 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,022 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,926 |
| Countries by Capital City | 0 | - | 5.00 | 69,182 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,724 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,096 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,693 |
| Moved Capital Cities | 0 | - | 4.96 | 74,572 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,615 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,763 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,216 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,284 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,022 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,320 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,686 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,334 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,208 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,782 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,521 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,804 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,090 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,494 |
| North American Sports Cities | 0 | - | 4.83 | 173,005 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,517 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,835 |
| Name a City - European Countries | 0 | - | 4.90 | 66,014 |
| Name a Valid World City | 0 | - | 4.84 | 71,829 |
| Cities by Former Name | 0 | - | 4.83 | 91,949 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,636 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,916 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,695 |
| World Capitals by Map | 0 | - | 5.00 | 288,881 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,738 |
| Capitals Starting With H | 0 | - | 4.91 | 93,179 |
| Capitals Starting With K | 0 | - | 4.88 | 84,252 |
| Capitals Starting With L | 0 | - | 4.79 | 94,386 |
| Capitals Starting With M | 0 | - | 4.93 | 108,897 |
| Capitals Starting With P | 0 | - | 4.88 | 78,842 |
| Capitals Starting With R | 0 | - | 4.88 | 82,383 |
| Capitals Starting With S | 0 | - | 4.90 | 86,417 |
| Capitals Starting With T | 0 | - | 4.85 | 76,714 |
| Capitals Starting With W | 0 | - | 4.87 | 91,644 |
| Capitals Starting With A | 0 | - | 4.97 | 128,898 |
| Capitals Starting With B | 0 | - | 4.89 | 119,297 |
| Capitals Starting With D | 0 | - | 4.93 | 97,043 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,430 |
| Olympic Host Countries | 0 | - | 4.98 | 201,710 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,683 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,828 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,814 |
| The Only European Country ... | 0 | - | 4.91 | 218,531 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,575 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,248 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,860 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,302 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,658 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,051 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,213 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,602 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,716 |
| Random Capital to Country | 0 | - | 4.99 | 2,599,252 |
| Random Country to Capital | 0 | - | 4.98 | 926,320 |
| Countries of Africa | 0 | - | 5.00 | 2,554,623 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,984 |
| Random European Capital to Country | 0 | - | 4.98 | 191,937 |
| Random European Country to Capital | 0 | - | 4.93 | 165,722 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,917 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,326 |
| Random African Capital to Country | 0 | - | 4.97 | 101,192 |
| Random African Country to Capital | 0 | - | 4.95 | 71,658 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,704 |
| Boundary Waters | 0 | - | 4.92 | 88,712 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,368 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,566 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,166 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,848 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,850 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,529 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,247 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,851 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,164 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,523 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,645 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,773 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,130 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,641 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,779 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,444 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,117 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,458 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,794 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,655 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,728 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,313 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,772 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,190 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,883 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,543 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,476 |
| Former Capitals | 0 | - | 4.88 | 71,630 |
| Europe Capital to Country | 0 | - | 4.99 | 251,755 |
| Asia Capital to Country | 0 | - | 4.96 | 127,269 |
| Capital Cities Chain | 0 | - | 4.84 | 83,245 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,753 |
| European Capitals by Map | 0 | - | 4.99 | 141,686 |
| African Capitals by Map | 0 | - | 4.99 | 141,761 |
| Coldest World Capitals | 0 | - | 4.95 | 134,095 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,754 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,710 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,042 |
| European Coastal Capitals | 0 | - | 4.95 | 91,168 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,105 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,052 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,466 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,091 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,037 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,434 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,369 |
| Countries of the Middle East | 0 | - | 4.96 | 202,367 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,998 |
| Slavic Countries | 0 | - | 4.96 | 112,232 |
| African Island Countries | 0 | - | 4.96 | 102,304 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,112 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,156 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,748 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,512 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,757 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,643 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,170 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,409 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,019 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,150 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,346 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,409 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,888 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,674 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,889 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,345 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,133 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,774 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,036 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,003 |
| Unusual U.S. City Names | 0 | - | 4.52 | 27,982 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,574 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,600 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.37 | 53,741 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,189 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,600 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,173 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,559 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,949 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,431 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,732 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,594 |
| Ancient City to Country | 0 | - | 4.70 | 108,282 |
| City-States | 0 | - | 4.53 | 37,375 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,462 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,781 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,247 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,913 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,200 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,581 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,275 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 59,052 |
| Top Five Capitals By Category #1 | 0 | - | 4.74 | 81,910 |
| Top Five Capitals By Category #2 | 0 | - | 4.78 | 67,536 |
| Most Expensive Capital Cities | 0 | - | 4.55 | 81,449 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,286 |
| 10 Easternmost Countries in Africa | 0 | - | 4.97 | 24,823 |
| Capitals of the Stans | 0 | - | 4.95 | 27,085 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,107 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,814 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,477 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,736 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,771 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,880 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,154 |
| Official Cities in the UK | 0 | - | 4.89 | 285,747 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,184 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,364 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,720 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,251 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,711 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,096 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,458 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,942 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,294 |
