| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,156 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,917 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,884 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,186 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,568 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,879 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,409 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,031 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,350 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,998 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,456 |
| Asia Capital to Country | 0 | - | 4.96 | 127,492 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,944 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,198 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,193 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,441 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,973 |
| Capitals of the Stans | 0 | - | 4.95 | 27,154 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,019 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,033 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,640 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,753 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,456 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,570 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,223 |
| Countries with Megacities | 0 | - | 4.99 | 267,253 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,910 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,173 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,223 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,285 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,817 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,096 |
| Random European Capital to Country | 0 | - | 4.98 | 192,172 |
| Random European Country to Capital | 0 | - | 4.93 | 165,945 |
| Random African Capital to Country | 0 | - | 4.97 | 101,370 |
| Random African Country to Capital | 0 | - | 4.95 | 71,767 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,041 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,732 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,674 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,196 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,788 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,172 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,386 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,473 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,347 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,170 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,695 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,920 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,241 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,639 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,958 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,995 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,820 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,481 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,500 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,096 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,813 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,269 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,724 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,988 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,640 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,745 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,232 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,421 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,465 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,366 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,110 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,612 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,030 |
| Name a City - European Countries | 0 | - | 4.89 | 66,209 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,052 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,435 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,215 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,419 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,435 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,923 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,382 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,702 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,775 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,909 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,205 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,630 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,700 |
| Largest City by Island | 0 | - | 4.87 | 72,468 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,435 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,716 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,163 |
| Megacities on a World Map | 0 | - | 4.98 | 257,029 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,121 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,779 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,708 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,499 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,708 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,850 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,914 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,548 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,212 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,524 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,867 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,783 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,513 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,107 |
| Europe Capital to Country | 0 | - | 4.99 | 252,161 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,021 |
| European Capitals by Map | 0 | - | 4.99 | 142,164 |
| African Capitals by Map | 0 | - | 4.99 | 142,271 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,905 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,211 |
| European Coastal Capitals | 0 | - | 4.95 | 91,337 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,807 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,840 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,180 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,689 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,954 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,032 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,390 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,836 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,065 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,951 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,001 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,578 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,822 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,010 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,242 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,529 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,260 |
| Official Cities in the UK | 0 | - | 4.89 | 286,350 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,281 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,258 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,601 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,149 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,278 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,596 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,216 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 62,002 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,730 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,560 |
| Most Populous Islands | 0 | - | 4.80 | 123,356 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,385 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,654 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,986 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,501 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,802 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,323 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,989 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,828 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,519 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,959 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,318 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,041 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,047 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,694 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,035 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,652 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,577 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,433 |
| Vietnam War Countries | 0 | - | 4.82 | 94,664 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,562 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,364 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,837 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,920 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,820 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,762 |
| Top 10 Richest Countries in Asia | 0 | - | 4.69 | 106,672 |
| Jordan Country Quiz | 0 | - | 4.86 | 32,092 |
| Qatar Country Quiz | 0 | - | 4.86 | 31,726 |
| Boundary Waters | 0 | - | 4.92 | 88,779 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,424 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,719 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,370 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,986 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,146 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,341 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,126 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,657 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,164 |
| Biggest City by Region | 0 | - | 4.50 | 36,395 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,344 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,536 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,103 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,065 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,536 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,309 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,446 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,566 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,707 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,467 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,461 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,240 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,939 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,576 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,523 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,296 |
| Biggest Cities in China | 0 | - | 4.53 | 159,927 |
| Biggest Cities in India | 0 | - | 4.64 | 68,064 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,071 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,037 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,449 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,943 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,449 |
