| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,455 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,575 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,494 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,594 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,330 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,579 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,706 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,984 |
| Random European Capital to Country | 0 | - | 4.98 | 191,933 |
| 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 | 103,324 |
| Random African Capital to Country | 0 | - | 4.97 | 101,192 |
| Random African Country to Capital | 0 | - | 4.95 | 71,658 |
| World Capitals Quiz | 0 | - | 5.00 | 5,099,030 |
| Europe Capital to Country | 0 | - | 4.99 | 251,751 |
| Asia Capital to Country | 0 | - | 4.96 | 127,265 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,750 |
| European Capitals by Map | 0 | - | 4.99 | 141,680 |
| African Capitals by Map | 0 | - | 4.99 | 141,757 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,751 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,709 |
| 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 | 53,104 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,041 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,460 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,089 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,346 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,798 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,243 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,704 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,093 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,938 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,292 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,830 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,624 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,678 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,809 |
| Countries with Megacities | 0 | - | 4.99 | 266,410 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,513 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,915 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,808 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,033 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,084 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,507 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,142 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,857 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,050 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,022 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,922 |
| Countries by Capital City | 0 | - | 5.00 | 69,181 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,720 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,096 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,689 |
| Moved Capital Cities | 0 | - | 4.96 | 74,570 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,379 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,477 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,209 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,626 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,647 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,256 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,014 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,312 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,249 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,754 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,886 |
| Countries Closest to Vietnam | 0 | - | 4.96 | 94,308 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,409 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,946 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,947 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 64,085 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,649 |
| Countries Closest to India | 0 | - | 4.97 | 103,140 |
| Countries Closest to Japan | 0 | - | 4.92 | 139,087 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,154 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 69,184 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,686 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,206 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,775 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,519 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,803 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,089 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,491 |
| North American Sports Cities | 0 | - | 4.83 | 173,003 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,515 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,834 |
| Name a City - European Countries | 0 | - | 4.90 | 66,012 |
| Cities by Former Name | 0 | - | 4.83 | 91,948 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,634 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,914 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,695 |
| World Capitals by Map | 0 | - | 5.00 | 288,871 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,737 |
| Random Capital to Country | 0 | - | 4.99 | 2,599,232 |
| Random Country to Capital | 0 | - | 4.98 | 926,296 |
| Capitals Starting With H | 0 | - | 4.91 | 93,169 |
| Capitals Starting With K | 0 | - | 4.88 | 84,240 |
| Capitals Starting With L | 0 | - | 4.79 | 94,275 |
| Capitals Starting With M | 0 | - | 4.93 | 108,883 |
| Capitals Starting With P | 0 | - | 4.88 | 78,836 |
| Capitals Starting With R | 0 | - | 4.88 | 82,379 |
| Capitals Starting With S | 0 | - | 4.90 | 86,410 |
| Capitals Starting With T | 0 | - | 4.85 | 76,708 |
| Capitals Starting With W | 0 | - | 4.87 | 91,641 |
| Capitals Starting With A | 0 | - | 4.97 | 128,885 |
| Capitals Starting With B | 0 | - | 4.89 | 119,285 |
| Capitals Starting With D | 0 | - | 4.93 | 97,034 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,421 |
| Olympic Host Countries | 0 | - | 4.98 | 201,704 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,683 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,824 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,805 |
| The Only European Country ... | 0 | - | 4.91 | 218,521 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,574 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,240 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,859 |
| Countries of Africa | 0 | - | 5.00 | 2,554,534 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,120 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,179 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,300 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,285 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,529 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,266 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,041 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,010 |
| Closest Countries to North Korea | 0 | - | 4.94 | 123,158 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,525 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,245 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,850 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,163 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,520 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,643 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,771 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,549 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,223 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,694 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,639 |
| 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 | 93,116 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,456 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,794 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,654 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,302 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,657 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,050 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,213 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,727 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,313 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,770 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,185 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,880 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,541 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,474 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,695 |
| Former Capitals | 0 | - | 4.88 | 71,628 |
| Capital Cities Chain | 0 | - | 4.84 | 83,239 |
| Coldest World Capitals | 0 | - | 4.95 | 134,092 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,033 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,149 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,432 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,424 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,163 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,364 |
| Countries of the Middle East | 0 | - | 4.96 | 202,365 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,997 |
| Slavic Countries | 0 | - | 4.96 | 112,229 |
| 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 | 70,154 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,741 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,511 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,756 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,523 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,639 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,169 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,406 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,016 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,149 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,343 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,407 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,887 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,673 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,887 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,343 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,132 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,770 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,033 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,001 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,678 |
| Countries Closest to Europe | 0 | - | 4.70 | 110,234 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,105 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,812 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,473 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,734 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,949 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,770 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,878 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,431 |
