| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,652 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,156 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,746 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,414 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,121 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,469 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,078 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,731 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,880 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,855 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,898 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,873 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,007 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,947 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,998 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,016 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,475 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,529 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,270 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,020 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,436 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,703 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,058 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,329 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,275 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,303 |
| U.S. Cities With The Most Top Census Appearances | 0 | - | 4.68 | 11,400 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,250 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,527 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,187 |
| Countries with Megacities | 0 | - | 4.99 | 267,166 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,870 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,339 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,142 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,185 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,253 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,656 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,007 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,659 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 30,070 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 65,035 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,170 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,061 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,941 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,923 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,239 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,862 |
| US States and State Capitals | 0 | - | 4.99 | 165,396 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,497 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,633 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,451 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,334 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,057 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,415 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,674 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,906 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,221 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,916 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,365 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,685 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,763 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,899 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,201 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,619 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,608 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,678 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,945 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,967 |
| Largest City by Island | 0 | - | 4.87 | 72,455 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,427 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,705 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,147 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,788 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,139 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,431 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,476 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,020 |
| Megacities on a World Map | 0 | - | 4.98 | 256,969 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,795 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,257 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,039 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,773 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,684 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,969 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,623 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,730 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,713 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,220 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,404 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,456 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,410 |
| 5 Most Populous Cities in Each Country With a Map | 0 | - | 4.96 | 40,034 |
| 500 Biggest Cities in the World on a Map | 0 | - | 4.97 | 123,987 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,281 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,680 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,825 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,900 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,534 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,204 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,519 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,862 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,777 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,701 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,484 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,082 |
| Name a City - European Countries | 0 | - | 4.90 | 66,185 |
| Europe Capital to Country | 0 | - | 4.99 | 252,114 |
| Asia Capital to Country | 0 | - | 4.96 | 127,402 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,992 |
| European Capitals by Map | 0 | - | 4.99 | 142,122 |
| African Capitals by Map | 0 | - | 4.99 | 142,217 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,917 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,881 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,198 |
| European Coastal Capitals | 0 | - | 4.95 | 91,321 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,192 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,769 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,817 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,169 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,745 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,674 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,939 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,649 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,920 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,991 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,798 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,572 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,995 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,166 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,318 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,984 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,426 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,798 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,734 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,756 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,488 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,227 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,521 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 102,936 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,251 |
| Official Cities in the UK | 0 | - | 4.89 | 286,293 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,608 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,940 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,839 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,011 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,214 |
| Random U.S. City to State | 0 | - | 4.45 | 76,921 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,244 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,315 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,450 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,121 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,680 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,010 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,253 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,250 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,593 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,130 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,403 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,590 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,963 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,632 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,567 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,717 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 303,960 |
| US States Quiz | 0 | - | 5.00 | 16,997,827 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,685 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,845 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,032 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,944 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,387 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,811 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,360 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,079 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,045 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,498 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,330 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,477 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,541 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,650 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,455 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,926 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,446 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,213 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,923 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,782 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,249 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,780 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,942 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,641 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,519 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,095 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,833 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,434 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,163 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,823 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,076 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,268 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,379 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,416 |
| Random European Capital to Country | 0 | - | 4.98 | 192,153 |
