| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,727 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,679 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,741 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,359 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,985 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,370 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,210 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,883 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,273 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,726 |
| Asia Capital to Country | 0 | - | 4.96 | 127,214 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,625 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,079 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,441 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,900 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,336 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,256 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,779 |
| Capitals of the Stans | 0 | - | 4.95 | 27,059 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,745 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,765 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,462 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,456 |
| China Cities Map Quiz | 0 | - | 4.94 | 105,717 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,587 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,823 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,506 |
| Countries with Megacities | 0 | - | 4.99 | 265,996 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,296 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,770 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,549 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,893 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,686 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,051 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,953 |
| Random European Capital to Country | 0 | - | 4.98 | 191,849 |
| Random European Country to Capital | 0 | - | 4.93 | 165,672 |
| Random African Capital to Country | 0 | - | 4.97 | 101,152 |
| Random African Country to Capital | 0 | - | 4.94 | 71,622 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,573 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,403 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,382 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,112 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,280 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,741 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,288 |
| 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 | 122,465 |
| 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 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,716 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,643 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,822 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,209 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,059 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,562 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,082 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,838 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,731 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,470 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,539 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,067 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,193 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,861 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,563 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,521 |
| Biggest Cities in China | 0 | - | 4.53 | 159,542 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,877 |
| Name a City - European Countries | 0 | - | 4.90 | 65,957 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,133 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,408 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,088 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,161 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,828 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,068 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,452 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,577 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,715 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,100 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,380 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,409 |
| Largest City by Island | 0 | - | 4.87 | 72,282 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,320 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,504 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,995 |
| Megacities on a World Map | 0 | - | 4.98 | 256,226 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,889 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,661 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,474 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,798 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,430 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,566 |
| 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 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,257 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,807 |
| Europe Capital to Country | 0 | - | 4.99 | 251,602 |
| 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 | 141,508 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,653 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,993 |
| European Coastal Capitals | 0 | - | 4.95 | 91,103 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,771 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,330 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,059 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,451 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,689 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,969 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,348 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,863 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,924 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,911 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,814 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,406 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,694 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,827 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,014 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,394 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,103 |
| Official Cities in the UK | 0 | - | 4.89 | 285,491 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,509 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,995 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,412 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,860 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,246 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,471 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,160 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,913 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,586 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,017 |
| Most Populous Islands | 0 | - | 4.80 | 123,200 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,354 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,608 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,940 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,411 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,708 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,238 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,897 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,333 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,162 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,717 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,436 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,620 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,335 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,462 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,997 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,290 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,451 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,157 |
| Vietnam War Countries | 0 | - | 4.82 | 94,496 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,775 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,541 |
| Japan Country Quiz | 0 | - | 4.93 | 143,093 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 94,349 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,331 |
| Boundary Waters | 0 | - | 4.92 | 88,689 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,345 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,505 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,092 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,809 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,012 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,284 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,959 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,614 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,107 |
| Biggest City by Region | 0 | - | 4.50 | 36,340 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,269 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 31,968 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,426 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,855 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,818 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,055 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,276 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,415 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,473 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,027 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,284 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,231 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,863 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,753 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,522 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,390 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,715 |
| Biggest Cities in India | 0 | - | 4.64 | 67,974 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,696,325 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,741 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,202 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,865 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,187 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,728 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,154 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,229 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,498 |
