| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,300 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,515 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,837 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,887 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,690 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,544 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,732 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,665 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,871 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,226 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,137 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,571 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,098 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,746 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,483 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,552 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,079 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,208 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,911 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,806 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,394 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,425 |
| Largest City by Island | 0 | - | 4.87 | 72,291 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,329 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,008 |
| Megacities on a World Map | 0 | - | 4.98 | 256,269 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,005 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,663 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,487 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,835 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,443 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,845 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,920 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,835 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,915 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,343 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,026 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,403 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,761 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,781 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,634 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,556 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,628 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,457 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,243 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,908 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,364 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,478 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,188 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,458 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,774 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,874 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,621 |
| Countries with Megacities | 0 | - | 4.99 | 266,119 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,370 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,818 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,652 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,942 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,056 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,869 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,831 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,069 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,068 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,293 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,877 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,761 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,734 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,514 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,087 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,965 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,614 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,110 |
| Biggest City by Region | 0 | - | 4.50 | 36,345 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,276 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,101 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,428 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,083 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,277 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,416 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,482 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,248 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,523 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,760 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,729 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,157 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,684 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,483 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,768 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,034 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,445 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,581 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,396 |
| Biggest Cities in History | 0 | - | 4.52 | 90,471 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,771 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,559 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,093 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,638 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,606 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,010 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,451 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,387 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,723 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,883 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,057 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 115,483 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,995 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,051 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,840 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,436 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,904 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,565 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,269 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,391 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,403 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,177 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,831 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,101 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,470 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,594 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,729 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,111 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,936 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,911 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,588 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,736 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,418 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,097 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,439 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,760 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,622 |
| Europe Capital to Country | 0 | - | 4.99 | 251,645 |
| Asia Capital to Country | 0 | - | 4.96 | 127,227 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,685 |
| European Capitals by Map | 0 | - | 4.99 | 141,507 |
| African Capitals by Map | 0 | - | 4.99 | 141,572 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,650 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,671 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,008 |
| European Coastal Capitals | 0 | - | 4.95 | 91,120 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,089 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,882 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,364 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,066 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,331 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,866 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,467 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,710 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,974 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,352 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,148 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,625 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,125 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,894 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,697 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,439 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,832 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,778 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,014 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,026 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,756 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,404 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,696 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,749 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,832 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,417 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,703 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,920 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,132 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,020 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,058 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,725 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,976 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,612 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,699 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,410 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,208 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,692 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,111 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,163 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,579 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,029 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,430 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,879 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,536 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,270 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,451 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,476 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,383 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,803 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,349 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,596 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,167 |
| Orthodox Countries | 0 | - | 4.92 | 132,597 |
| Battle to Country | 0 | - | 4.91 | 53,765 |
| Monarchies of Europe | 0 | - | 4.90 | 98,664 |
| Monarchies of Asia | 0 | - | 4.97 | 71,392 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,192 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,320 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,792 |
| Capitals of the Stans | 0 | - | 4.95 | 27,067 |
