| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,529 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,316 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,451 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,288 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,127 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,207 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,728 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,953 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,781 |
| Random European Capital to Country | 0 | - | 4.98 | 191,848 |
| Random European Country to Capital | 0 | - | 4.93 | 165,672 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,882 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,273 |
| Random African Capital to Country | 0 | - | 4.97 | 101,149 |
| Random African Country to Capital | 0 | - | 4.94 | 71,622 |
| World Capitals Quiz | 0 | - | 5.00 | 5,096,274 |
| Europe Capital to Country | 0 | - | 4.99 | 251,602 |
| Asia Capital to Country | 0 | - | 4.96 | 127,213 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,664 |
| European Capitals by Map | 0 | - | 4.99 | 141,459 |
| African Capitals by Map | 0 | - | 4.99 | 141,504 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,625 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,652 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,992 |
| European Coastal Capitals | 0 | - | 4.95 | 91,103 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,077 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,770 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,325 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,059 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,157 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,923 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,507 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,993 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,412 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,860 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,256 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,471 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,376 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,779 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,584 |
| Monarchies of Europe | 0 | - | 4.90 | 98,637 |
| Monarchies of Asia | 0 | - | 4.97 | 71,381 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,183 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,440 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,800 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,543 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,616 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,431 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,462 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,884 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,289 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,242 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,052 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,536 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,612 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,601 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,550 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,624 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,573 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,818 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,497 |
| Countries with Megacities | 0 | - | 4.99 | 265,982 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,291 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,768 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,541 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,887 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,003 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,925 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,809 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,993 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,935 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,813 |
| Countries by Capital City | 0 | - | 5.00 | 69,093 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,664 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,062 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,136 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,637 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,447 |
| Moved Capital Cities | 0 | - | 4.96 | 74,526 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,123 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,187 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,972 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,668 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,310 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,504 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,120 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,141 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,650 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,462 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,746 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,010 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,421 |
| North American Sports Cities | 0 | - | 4.83 | 172,954 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,499 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,741 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,201 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,795 |
| Cities by Former Name | 0 | - | 4.83 | 91,914 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,602 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,883 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,112 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,997 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,631 |
| World Capitals by Map | 0 | - | 5.00 | 288,635 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,679 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,419 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,154 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,279 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,224 |
| Random Country to Capital | 0 | - | 4.98 | 925,593 |
| Capitals Starting With H | 0 | - | 4.91 | 92,926 |
| Capitals Starting With K | 0 | - | 4.88 | 83,978 |
| Capitals Starting With L | 0 | - | 4.81 | 88,492 |
| Capitals Starting With M | 0 | - | 4.93 | 108,420 |
| Capitals Starting With P | 0 | - | 4.88 | 78,551 |
| Capitals Starting With R | 0 | - | 4.88 | 82,144 |
| Capitals Starting With S | 0 | - | 4.90 | 86,140 |
| Capitals Starting With T | 0 | - | 4.85 | 76,474 |
| Capitals Starting With W | 0 | - | 4.87 | 91,493 |
| Capitals Starting With A | 0 | - | 4.97 | 128,568 |
| Capitals Starting With B | 0 | - | 4.89 | 118,961 |
| Capitals Starting With D | 0 | - | 4.93 | 96,828 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,498 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,251 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,262 |
| Olympic Host Countries | 0 | - | 4.98 | 201,581 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,614 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,728 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,446 |
| The Only European Country ... | 0 | - | 4.91 | 218,328 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,422 |
| Hindu Countries | 0 | - | 4.87 | 50,459 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,139 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,833 |
| Countries of Africa | 0 | - | 5.00 | 2,552,780 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,653 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 149,533 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,404 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,077 |
| Australia A-Z | 0 | - | 4.54 | 50,099 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,359 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,160 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,826 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,067 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,452 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,573 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,713 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,502 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,565 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,725 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,409 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,090 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,432 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,748 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,604 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,296 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,626 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,036 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,210 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,703 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,256 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,720 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,065 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,805 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,496 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,427 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,637 |
| Former Capitals | 0 | - | 4.88 | 71,612 |
| Capital Cities Chain | 0 | - | 4.84 | 83,191 |
| Coldest World Capitals | 0 | - | 4.95 | 134,066 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,971 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,107 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,373 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,614 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,599 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,305 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,197 |
| Countries of the Middle East | 0 | - | 4.96 | 202,253 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,931 |
| Slavic Countries | 0 | - | 4.96 | 112,178 |
| African Island Countries | 0 | - | 4.96 | 102,234 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,078 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,847 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,064 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,571 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,451 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,684 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,878 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,566 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,103 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,307 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,948 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,058 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,280 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,350 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,860 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,635 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,829 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,303 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,072 |
