| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.89 | 206,846 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,945 |
| Africa Capitals Quiz | 0 | - | 4.99 | 633,884 |
| Asia Capitals Quiz | 0 | - | 4.98 | 593,331 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 76,630 |
| Random European Capital to Country | 0 | - | 4.97 | 152,635 |
| Random European Country to Capital | 0 | - | 4.92 | 134,907 |
| Random Asian Country to Capital | 0 | - | 4.94 | 85,609 |
| Random Asian Capital to Country | 0 | - | 4.97 | 89,112 |
| Random African Country to Capital | 0 | - | 4.94 | 61,850 |
| World Capitals Quiz | 0 | - | 5.00 | 4,493,827 |
| Europe Capital to Country | 0 | - | 4.99 | 219,773 |
| Asia Capital to Country | 0 | - | 4.96 | 105,617 |
| EU Capitals with No Hints | 0 | - | 4.96 | 124,326 |
| European Capitals by Map | 0 | - | 4.99 | 93,285 |
| African Capitals by Map | 0 | - | 4.99 | 110,334 |
| Asian Capitals by Map | 0 | - | 4.98 | 46,880 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 78,785 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.95 | 71,976 |
| European Coastal Capitals | 0 | - | 4.95 | 77,089 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.90 | 46,549 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 228,048 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.91 | 193,550 |
| Capitals of Mediterranean Countries | 0 | - | 4.96 | 76,038 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 126,851 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,381,373 |
| South America Capitals Quiz | 0 | - | 5.00 | 419,200 |
| North America Capitals Quiz | 0 | - | 4.99 | 185,853 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 52,077 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 84,188 |
| European Capitals - Map Quiz | 0 | - | 4.98 | 105,133 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 77,882 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 66,865 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 51,110 |
| European Capitals Ending in N | 0 | - | 4.91 | 73,894 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,696 |
| Countries with Megacities | 0 | - | 4.99 | 196,943 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,297 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,807 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,187 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,762 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,620 |
| Global Cities on a World Map | 0 | - | 4.92 | 91,385 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 73,590 |
| Northernmost Capital Cities | 0 | - | 4.98 | 93,935 |
| Most Remote Capital Cities | 0 | - | 4.90 | 43,668 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 34,290 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 90,693 |
| Same Letter Country and Capital | 0 | - | 4.99 | 127,079 |
| Countries by Capital City | 0 | - | 4.99 | 49,263 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 65,852 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 104,994 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 72,879 |
| Moved Capital Cities | 0 | - | 4.94 | 52,224 |
| Name a Valid European Capital | 0 | - | 4.92 | 115,662 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 61,654 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,736 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,310,606 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,472 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 115,837 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 38,107 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,439 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,050 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,907 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 108,953 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,909 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,395 |
| Summer Olympic City Bids | 0 | - | 4.93 | 37,122 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.88 | 91,278 |
| Cities by Former Name | 0 | - | 4.86 | 71,311 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,527 |
| Nearest Capital City #1 | 0 | - | 4.82 | 52,418 |
| World Capitals by Proximity | 0 | - | 4.88 | 299,011 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 48,805 |
| World Capitals by Map | 0 | - | 5.00 | 241,353 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 50,236 |
| Random Capital to Country | 0 | - | 4.99 | 2,359,131 |
| Random Country to Capital | 0 | - | 4.98 | 801,621 |
| World Capitals By Letter - H | 0 | - | 4.84 | 71,145 |
| World Capitals By Letter - K | 0 | - | 4.81 | 65,817 |
| World Capitals By Letter - M | 0 | - | 4.90 | 85,844 |
| World Capitals By Letter - P | 0 | - | 4.85 | 66,976 |
| World Capitals By Letter - R | 0 | - | 4.87 | 72,216 |
| World Capitals By Letter - S | 0 | - | 4.89 | 74,415 |
| World Capitals By Letter - T | 0 | - | 4.81 | 66,342 |
| World Capitals By Letter - W | 0 | - | 4.88 | 82,163 |
| World Capitals By Letter - A | 0 | - | 4.96 | 104,469 |
| World Capitals By Letter - B | 0 | - | 4.84 | 96,729 |
| World Capitals By Letter - D | 0 | - | 4.91 | 78,878 |
| Countries That Use the Euro | 0 | - | 4.92 | 62,862 |
| Olympic Host Countries | 0 | - | 4.98 | 161,746 |
| 10 Easternmost Countries in Europe | 0 | - | 4.85 | 92,122 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 233,053 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,084 |
| The Only European Country ... | 0 | - | 4.94 | 178,310 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 195,310 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.92 | 86,627 |
| Countries of Africa | 0 | - | 5.00 | 2,165,407 |
| Random African Capitals on a Map | 0 | - | 4.95 | 48,087 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 45,009 |
| Random European Capitals on a Map | 0 | - | 4.97 | 106,806 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 79,743 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.85 | 39,066 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 124,357 |
| Countries of Europe by Population | 0 | - | 4.98 | 126,530 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,596 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,468 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,192 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,375 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 69,705 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,426 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 205,153 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,532 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,576 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,096 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,639 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,907 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,895 |
| Biggest City by Body of Water | 0 | - | 4.52 | 38,891 |
| Global Cities Quiz | 0 | - | 4.64 | 156,997 |
| Southernmost Major Cities | 0 | - | 4.41 | 45,245 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.45 | 68,406 |
| Cities with the Most Foreign Embassies | 0 | - | 4.66 | 45,294 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.41 | 34,992 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 89,706 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.94 | 79,814 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 193,352 |
| Most-Visited Cities in Europe | 0 | - | 4.92 | 56,483 |
| Cities with the Biggest Economies | 0 | - | 4.92 | 118,454 |
| Five Most Guessed Cities by Continent | 0 | - | 4.97 | 104,497 |
| Former Capitals Quiz | 0 | - | 4.81 | 58,007 |
| Capital Cities Chain | 0 | - | 4.86 | 71,374 |
| Coldest World Capitals | 0 | - | 4.96 | 128,005 |
| Capital Cities with Spanish Names | 0 | - | 4.85 | 62,931 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 78,584 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 125,630 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,183,141 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 19,435 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 185,980 |
| Countries of the Middle East | 0 | - | 4.96 | 173,015 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 74,601 |
| Slavic Countries | 0 | - | 4.96 | 100,425 |
| African Island Countries | 0 | - | 4.96 | 89,269 |
| Straight Shot to Antarctica | 0 | - | 4.90 | 37,287 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 143,701 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 144,559 |
| Countries of North America Quiz | 0 | - | 5.00 | 878,820 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 110,900 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 93,523 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 119,253 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.94 | 56,244 |
| Five Coldest Countries by Continent | 0 | - | 4.96 | 58,199 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 197,545 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 160,438 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 125,562 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 106,994 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 132,225 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 138,335 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 104,615 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 130,780 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 88,644 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 96,501 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 74,638 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 205,103 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 160,796 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 157,266 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.91 | 80,795 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,523 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.90 | 84,706 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 145,808 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 49,443 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.97 | 5,689 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,830 |
| Lonely Planet Top 200 Cities | 0 | - | 4.65 | 209,714 |
| Ancient City to Country | 0 | - | 4.76 | 100,863 |
| Official Cities in the UK | 0 | - | 4.86 | 232,040 |
| City-States | 0 | - | 4.53 | 34,772 |
| Cities with the Most International Tourists | 0 | - | 4.46 | 49,908 |
| Most Guessed Cities by Country #3 | 0 | - | 4.86 | 19,676 |
| Divided World City Name Puzzle #1 | 0 | - | 4.91 | 39,811 |
| City Where It Happened #2 | 0 | - | 4.43 | 50,121 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 53,385 |
| Capitals A-Z | 0 | - | 4.84 | 41,751 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.44 | 49,213 |
| World Capitals Closest to Jerusalem | 0 | - | 4.45 | 42,792 |
| Capitals by First and Last Letter | 0 | - | 4.42 | 63,850 |
| Capitals Based on Last Two Letters | 0 | - | 4.47 | 55,455 |
| Capital Cities by Body of Water | 0 | - | 4.87 | 53,257 |
| Asian Coastal Capitals | 0 | - | 4.54 | 20,232 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.90 | 89,536 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 47,602 |
| Word Scramble - European Capitals | 0 | - | 4.78 | 87,173 |
| Top Five Capitals By Category #1 | 0 | - | 4.58 | 53,146 |
| Top Five Capitals By Category #2 | 0 | - | 4.52 | 45,493 |
| Most Expensive Capital Cities | 0 | - | 4.54 | 72,455 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 88,329 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 13,678 |
| Flags to Capitals #1 | 0 | - | 4.97 | 48,934 |
| Flags to Capitals #2 | 0 | - | 4.95 | 36,684 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 84,978 |
