| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,728 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,386 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,228 |
| Asia Capitals Quiz | 0 | - | 4.98 | 688,652 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,268 |
| Random European Capital to Country | 0 | - | 4.98 | 189,712 |
| Random European Country to Capital | 0 | - | 4.92 | 147,811 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,618 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,747 |
| Random African Capital to Country | 0 | - | 4.97 | 99,992 |
| Random African Country to Capital | 0 | - | 4.94 | 70,457 |
| World Capitals Quiz | 0 | - | 5.00 | 5,047,694 |
| Europe Capital to Country | 0 | - | 4.99 | 248,753 |
| Asia Capital to Country | 0 | - | 4.96 | 126,114 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,037 |
| European Capitals by Map | 0 | - | 4.99 | 137,538 |
| African Capitals by Map | 0 | - | 4.99 | 132,761 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,676 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,555 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,923 |
| European Coastal Capitals | 0 | - | 4.95 | 90,061 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,335 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,082 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,660 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,561 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,153 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,497 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,576,832 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,910 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,065 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,933 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,660 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,533 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,460 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 81,899 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,772 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,965 |
| Capitals of the Stans | 0 | - | 4.95 | 26,585 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,162 |
| Countries with Megacities | 0 | - | 4.99 | 248,703 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,026 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,481 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,393 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,430 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,387 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,693 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,508 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,007 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,998 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,232 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,076 |
| Countries by Capital City | 0 | - | 5.00 | 67,371 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,680 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,202 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,645 |
| Moved Capital Cities | 0 | - | 4.96 | 73,844 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,545 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,012 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,879 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,102 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,301 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,685 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,546 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,844 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,335 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,245 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,806 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,272 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,052 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,052 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,599 |
| North American Sports Cities | 0 | - | 4.83 | 171,328 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,023 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,000 |
| Name a City - European Countries | 0 | - | 4.91 | 64,779 |
| Cities by Former Name | 0 | - | 4.84 | 91,221 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,192 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,416 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,425 |
| World Capitals by Map | 0 | - | 5.00 | 284,614 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,935 |
| Random Capital to Country | 0 | - | 4.99 | 2,583,482 |
| Random Country to Capital | 0 | - | 4.98 | 914,562 |
| Capitals Starting With H | 0 | - | 4.90 | 91,674 |
| Capitals Starting With K | 0 | - | 4.85 | 75,908 |
| Capitals Starting With L | 0 | - | 4.81 | 87,098 |
| Capitals Starting With M | 0 | - | 4.93 | 106,522 |
| Capitals Starting With P | 0 | - | 4.88 | 77,408 |
| Capitals Starting With R | 0 | - | 4.87 | 81,187 |
| Capitals Starting With S | 0 | - | 4.89 | 85,032 |
| Capitals Starting With T | 0 | - | 4.84 | 75,511 |
| Capitals Starting With W | 0 | - | 4.89 | 90,822 |
| Capitals Starting With A | 0 | - | 4.97 | 126,867 |
| Capitals Starting With B | 0 | - | 4.89 | 117,569 |
| Capitals Starting With D | 0 | - | 4.93 | 95,653 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,804 |
| Olympic Host Countries | 0 | - | 4.98 | 199,424 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,208 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,213 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 305,644 |
| The Only European Country ... | 0 | - | 4.91 | 214,961 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,964 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,213 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,435 |
| Countries of Africa | 0 | - | 5.00 | 2,519,134 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,891 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,424 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,781 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,172 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,801 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,981 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,778 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,110 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,722 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,311 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,799 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,305 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,683 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,865 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,585 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,911 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,920 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,632 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,503 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,866 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,739 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,992 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,498 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,191 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,065 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,708 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,074 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,419 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,021 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,501 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,808 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,368 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,040 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,516 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,630 |
| Former Capitals | 0 | - | 4.88 | 71,263 |
| Capital Cities Chain | 0 | - | 4.84 | 82,198 |
| Coldest World Capitals | 0 | - | 4.95 | 133,196 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,089 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,264 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,297 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,035 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,045 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,255 |
| Countries of the Middle East | 0 | - | 4.96 | 199,747 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,668 |
| Slavic Countries | 0 | - | 4.96 | 111,190 |
| African Island Countries | 0 | - | 4.96 | 101,107 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,654 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,210 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 45,564 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,464 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,518 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,016,550 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,233 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,915 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,677 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,838 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,380 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,136 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,084 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,177 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,371 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,476 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,659 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,847 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,628 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,695 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,547 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,791 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,572 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,637 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,534 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,397 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,304 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,687 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,994 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,750 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,994 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,123 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,870 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,551 |
| Ancient City to Country | 0 | - | 4.70 | 107,772 |
| Official Cities in the UK | 0 | - | 4.89 | 281,759 |
| City-States | 0 | - | 4.53 | 37,166 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,932 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,572 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,298 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,112 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,640 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,050 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,024 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,499 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,260 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,183 |
