| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.90 | 206,877 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,953 |
| Africa Capitals Quiz | 0 | - | 4.99 | 633,996 |
| Asia Capitals Quiz | 0 | - | 4.98 | 593,431 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 76,634 |
| Random European Capital to Country | 0 | - | 4.97 | 152,657 |
| Random European Country to Capital | 0 | - | 4.92 | 134,923 |
| Random Asian Country to Capital | 0 | - | 4.94 | 85,615 |
| Random Asian Capital to Country | 0 | - | 4.97 | 89,119 |
| Random African Capital to Country | 0 | - | 4.97 | 79,420 |
| Random African Country to Capital | 0 | - | 4.94 | 61,858 |
| World Capitals Quiz | 0 | - | 5.00 | 4,494,449 |
| Europe Capital to Country | 0 | - | 4.99 | 219,809 |
| Asia Capital to Country | 0 | - | 4.96 | 105,634 |
| EU Capitals with No Hints | 0 | - | 4.96 | 124,360 |
| European Capitals by Map | 0 | - | 4.99 | 93,332 |
| African Capitals by Map | 0 | - | 4.99 | 110,425 |
| Asian Capitals by Map | 0 | - | 4.98 | 46,918 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 78,817 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.95 | 71,995 |
| European Coastal Capitals | 0 | - | 4.95 | 77,102 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.90 | 46,558 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 228,069 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.91 | 193,580 |
| Capitals of Mediterranean Countries | 0 | - | 4.96 | 76,042 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,381,555 |
| South America Capitals Quiz | 0 | - | 5.00 | 419,249 |
| North America Capitals Quiz | 0 | - | 4.99 | 185,890 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 52,099 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 84,209 |
| European Capitals - Map Quiz | 0 | - | 4.98 | 105,153 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 77,894 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 66,876 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 51,129 |
| European Capitals Ending in N | 0 | - | 4.91 | 73,899 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,727 |
| Countries with Megacities | 0 | - | 4.99 | 196,981 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,331 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,828 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,212 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,783 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,659 |
| Global Cities on a World Map | 0 | - | 4.92 | 91,398 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 73,607 |
| Northernmost Capital Cities | 0 | - | 4.98 | 93,947 |
| Most Remote Capital Cities | 0 | - | 4.90 | 43,675 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 34,293 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 90,704 |
| Same Letter Country and Capital | 0 | - | 4.99 | 127,095 |
| Countries by Capital City | 0 | - | 4.99 | 49,274 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 65,861 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 105,001 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 72,889 |
| Moved Capital Cities | 0 | - | 4.94 | 52,229 |
| Name a Valid European Capital | 0 | - | 4.93 | 119,075 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 61,660 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,749 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,310,745 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,491 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 115,867 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 38,110 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,444 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,060 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,934 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,967 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,918 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,443 |
| Summer Olympic City Bids | 0 | - | 4.93 | 37,124 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.88 | 91,286 |
| Cities by Former Name | 0 | - | 4.86 | 71,321 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,536 |
| Nearest Capital City #1 | 0 | - | 4.82 | 52,420 |
| World Capitals by Proximity | 0 | - | 4.88 | 299,048 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 48,808 |
| World Capitals by Map | 0 | - | 5.00 | 241,415 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 50,241 |
| Random Capital to Country | 0 | - | 4.99 | 2,359,422 |
| Random Country to Capital | 0 | - | 4.98 | 801,741 |
| World Capitals By Letter - H | 0 | - | 4.84 | 71,155 |
| World Capitals By Letter - K | 0 | - | 4.81 | 65,824 |
| World Capitals By Letter - M | 0 | - | 4.90 | 85,851 |
| World Capitals By Letter - P | 0 | - | 4.85 | 66,987 |
| World Capitals By Letter - R | 0 | - | 4.87 | 72,218 |
| World Capitals By Letter - S | 0 | - | 4.89 | 74,423 |
| World Capitals By Letter - T | 0 | - | 4.81 | 66,353 |
| World Capitals By Letter - W | 0 | - | 4.88 | 82,169 |
| World Capitals By Letter - A | 0 | - | 4.96 | 104,482 |
| World Capitals By Letter - B | 0 | - | 4.84 | 96,736 |
| World Capitals By Letter - D | 0 | - | 4.91 | 78,888 |
| Countries That Use the Euro | 0 | - | 4.92 | 62,885 |
| Olympic Host Countries | 0 | - | 4.98 | 161,775 |
| 10 Easternmost Countries in Europe | 0 | - | 4.85 | 92,143 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 233,108 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,094 |
| The Only European Country ... | 0 | - | 4.94 | 178,352 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 195,317 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 86,632 |
| Countries of Africa | 0 | - | 5.00 | 2,165,860 |
| Random African Capitals on a Map | 0 | - | 4.95 | 48,097 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 45,025 |
| Random European Capitals on a Map | 0 | - | 4.97 | 106,820 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 79,763 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.85 | 39,074 |
| Countries of Europe by Population | 0 | - | 4.98 | 126,579 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,603 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,480 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,206 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,392 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 69,759 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,451 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 205,167 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,541 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,582 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,102 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,646 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,909 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,901 |
| Biggest City by Body of Water | 0 | - | 4.52 | 38,893 |
| Global Cities Quiz | 0 | - | 4.64 | 157,002 |
| Southernmost Major Cities | 0 | - | 4.41 | 45,245 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.45 | 68,415 |
| Cities with the Most Foreign Embassies | 0 | - | 4.66 | 45,295 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.41 | 34,994 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 89,718 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.94 | 79,835 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 193,370 |
| Most-Visited Cities in Europe | 0 | - | 4.92 | 56,491 |
| Cities with the Biggest Economies | 0 | - | 4.92 | 118,463 |
| Five Most Guessed Cities by Continent | 0 | - | 4.97 | 104,510 |
| Former Capitals Quiz | 0 | - | 4.81 | 58,009 |
| Capital Cities Chain | 0 | - | 4.86 | 71,388 |
| Coldest World Capitals | 0 | - | 4.96 | 128,009 |
| Capital Cities with Spanish Names | 0 | - | 4.85 | 62,937 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 78,594 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 125,673 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,183,423 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 19,447 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 186,011 |
| Countries of the Middle East | 0 | - | 4.96 | 173,044 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 74,621 |
| Slavic Countries | 0 | - | 4.96 | 100,440 |
| African Island Countries | 0 | - | 4.96 | 89,284 |
| Straight Shot to Antarctica | 0 | - | 4.90 | 37,290 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 49,394 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 143,709 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 144,623 |
| Countries of North America Quiz | 0 | - | 5.00 | 878,983 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 110,918 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 93,539 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 119,277 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 126,862 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 197,561 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 160,449 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 125,574 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 106,998 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 132,233 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 138,341 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 104,625 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 130,796 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 88,656 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 96,509 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 74,646 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 49,372 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 205,134 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 160,816 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 157,283 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.91 | 80,807 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,526 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.90 | 84,715 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 145,824 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 49,452 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.97 | 5,717 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,857 |
| Lonely Planet Top 200 Cities | 0 | - | 4.65 | 209,737 |
| Ancient City to Country | 0 | - | 4.76 | 100,867 |
| Official Cities in the UK | 0 | - | 4.86 | 232,072 |
| City-States | 0 | - | 4.53 | 34,775 |
| Cities with the Most International Tourists | 0 | - | 4.46 | 49,910 |
| Most Guessed Cities by Country #3 | 0 | - | 4.87 | 19,691 |
| Divided World City Name Puzzle #1 | 0 | - | 4.91 | 39,817 |
| City Where It Happened #2 | 0 | - | 4.43 | 50,128 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 53,387 |
| Capitals A-Z | 0 | - | 4.84 | 41,755 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.44 | 49,213 |
| World Capitals Closest to Jerusalem | 0 | - | 4.45 | 42,793 |
| Capitals by First and Last Letter | 0 | - | 4.42 | 63,853 |
| Capitals Based on Last Two Letters | 0 | - | 4.47 | 55,464 |
| Capital Cities by Body of Water | 0 | - | 4.87 | 53,261 |
| Asian Coastal Capitals | 0 | - | 4.54 | 20,232 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.90 | 89,545 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 47,604 |
| Word Scramble - European Capitals | 0 | - | 4.79 | 87,182 |
| Top Five Capitals By Category #1 | 0 | - | 4.58 | 53,150 |
| Top Five Capitals By Category #2 | 0 | - | 4.52 | 45,498 |
| Most Expensive Capital Cities | 0 | - | 4.54 | 72,462 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 88,337 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 13,680 |
| Flags to Capitals #1 | 0 | - | 4.97 | 48,945 |
| Flags to Capitals #2 | 0 | - | 4.95 | 36,693 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 84,982 |
