| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,602 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,916 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,321 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,134 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,252 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,997 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,949 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,728 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,727 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,989 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,416 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,286 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,132 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,735 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,872 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,335 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,593 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,833 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,547 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,617 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,822 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,905 |
| Largest City by Island | 0 | - | 4.87 | 72,594 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,517 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,281 |
| Megacities on a World Map | 0 | - | 4.98 | 257,583 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,402 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,870 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,863 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,850 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,896 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,208 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,228 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,887 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,528 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,227 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,415 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,496 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,393 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,637 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 228,203 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,594 |
| Countries with Megacities | 0 | - | 4.99 | 268,056 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,240 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,384 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,566 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,487 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,381 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,044 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,179 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,972 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,763 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,542 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,107 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,125 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,227 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,687 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,188 |
| Biggest City by Region | 0 | - | 4.50 | 36,424 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,385 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,266 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,221 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,592 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,333 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,464 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,631 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,033 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,648 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,489 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,064 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,609 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,493 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,582 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,869 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,095 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,398 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,752 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,895 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,321 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,211 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,081 |
| Biggest Cities in History | 0 | - | 4.52 | 90,726 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,237 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,621 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,870 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,652 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,627 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,744 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,743 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,734 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,844 |
| Biggest Cities Starting With A | 0 | - | 4.63 | 125,285 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,273 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,099 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,717 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,324 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,898 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,741 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,678 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,071 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,425 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,988 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,621 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,897 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,921 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,092 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,285 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,209 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,155 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,936 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,984 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,754 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,735 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,527 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,442 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,110 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,464 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,080 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,046 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,632 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,304 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,584 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,945 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,901 |
| Europe Capital to Country | 0 | - | 4.99 | 252,672 |
| Asia Capital to Country | 0 | - | 4.96 | 127,728 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,351 |
| European Capitals by Map | 0 | - | 4.99 | 142,651 |
| African Capitals by Map | 0 | - | 4.99 | 142,668 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,155 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,170 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,430 |
| European Coastal Capitals | 0 | - | 4.95 | 91,528 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,283 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,448 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,807 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,265 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,857 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,433 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,644 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,851 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,553 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,724 |
| Most Populous Islands | 0 | - | 4.80 | 123,466 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,409 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,685 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,997 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,515 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,373 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,129 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,031 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,997 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,145 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,557 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,736 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,924 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,226 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,037 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,107 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,517 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,944 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 41,009 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,444 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,963 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,903 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,599 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,490 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,963 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,400 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,770 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,763 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,389 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,748 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,362 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,825 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,519 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,692 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,086 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,842 |
| European Countries with One Border | 0 | - | 4.97 | 184,075 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,791 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,897 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,324 |
| Capitals of the Stans | 0 | - | 4.95 | 27,251 |
| Boundary Waters | 0 | - | 4.92 | 88,866 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,479 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,875 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,612 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,089 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,881 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,243 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,828 |
| Name a Valid European Capital | 0 | - | 4.95 | 154,049 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,713 |
| Countries That Border Russia | 0 | - | 4.98 | 465,005 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,677 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 155,068 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,555 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,427 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,734 |
