| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,025 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,385 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,125 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,194 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,932 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,450 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,436 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,391 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,462 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,632 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,560 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,310 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,371 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,385 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,930 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,046 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,625 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,546 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,231 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,786 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,188 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,671 |
| Largest City by Island | 0 | - | 4.87 | 70,935 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,197 |
| Biggest European Cities by Century | 0 | - | 4.98 | 130,326 |
| Megacities on a World Map | 0 | - | 4.98 | 250,153 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,531 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,709 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,734 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,455 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,976 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,168 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,570 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,687 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,070 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,502 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,318 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,207 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,455 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,835 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,977 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,302 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,601 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,777 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,470 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,033 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,256 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,443 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,646 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,604 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,412 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,998 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,851 |
| Countries with Megacities | 0 | - | 4.99 | 246,149 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,770 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,727 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,236 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,663 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,247 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,122 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,358 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,123 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,598 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,612 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,295 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,436 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,149 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,883 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,512 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,828 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,880 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,642 |
| Biggest City by Region | 0 | - | 4.50 | 35,964 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,862 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,602 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,003 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,995 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,200 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,879 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,735 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,230 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,930 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,716 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,666 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,742 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,391 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,479 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,143 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,267 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,502 |
| Biggest Cities in History | 0 | - | 4.52 | 89,035 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,045 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,152 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,863 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,142 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,949 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,137 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,914 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,855 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 46,994 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,641 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,277 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,372 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,854 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,298 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,775 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,013 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,882 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,313 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,765 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,668 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,028 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,081 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,148 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,745 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,278 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,463 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,218 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,616 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,251 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,287 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,136 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,175 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,498 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,476 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,710 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,087 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 76,859 |
| Europe Capital to Country | 0 | - | 4.99 | 247,267 |
| Asia Capital to Country | 0 | - | 4.96 | 125,616 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,271 |
| European Capitals by Map | 0 | - | 4.99 | 135,905 |
| African Capitals by Map | 0 | - | 4.99 | 132,037 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,952 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,063 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,519 |
| European Coastal Capitals | 0 | - | 4.95 | 89,629 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,141 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,340 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,512 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,368 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,235 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,789 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,985 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,952 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,626 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,067 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,826 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,523 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,962 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,648 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,454 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,064 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,981 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,166 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,793 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,745 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,691 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,795 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,671 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,890 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,760 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,248 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,045 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,849 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,439 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,528 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,720 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,703 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,829 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,596 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,490 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,540 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,648 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,332 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,457 |
| U.S. Cities A-Z by Clue | 0 | - | 4.36 | 39,629 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,032 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,463 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,526 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,324 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,001 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,070 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,124 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,639 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,650 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,362 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,139 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,696 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,866 |
| Orthodox Countries | 0 | - | 4.91 | 130,245 |
| Battle to Country | 0 | - | 4.91 | 52,423 |
| Monarchies of Europe | 0 | - | 4.90 | 97,198 |
| Monarchies of Asia | 0 | - | 4.97 | 70,531 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,376 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,458 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,355 |
| Capitals of the Stans | 0 | - | 4.95 | 26,362 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,192 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,889 |
