| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,050 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,238 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,507 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,184 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,126 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,509 |
| Asia Capitals Quiz | 0 | - | 4.98 | 693,990 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,538 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,855 |
| Asia Capital to Country | 0 | - | 4.96 | 126,762 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,551 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,634 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,311 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,315 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,062 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,205 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,166 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,927 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,482 |
| Capitals of the Stans | 0 | - | 4.95 | 26,881 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,728 |
| Countries with Megacities | 0 | - | 4.99 | 264,162 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,573 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,385 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,837 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,447 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,974 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,133 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,718 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,045 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,597 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,732 |
| Random European Capital to Country | 0 | - | 4.98 | 191,070 |
| Random European Country to Capital | 0 | - | 4.93 | 165,287 |
| Random African Capital to Country | 0 | - | 4.97 | 100,802 |
| Random African Country to Capital | 0 | - | 4.94 | 71,326 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,980 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,830 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,040 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,027 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,496 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,647 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,162 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,158 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,862 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,577 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,588 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,436 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,007 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,679 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,315 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,132 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,021 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,199 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,725 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,793 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,800 |
| Biggest Cities in the United States | 0 | - | 4.94 | 979,914 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,510 |
| Name a City - European Countries | 0 | - | 4.90 | 65,501 |
| Africa Capitals Quiz | 0 | - | 4.99 | 738,790 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,842 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,079 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,025 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,040 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,774 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,892 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,278 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,666 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,601 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,037 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,263 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,429 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,941 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,906 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,779 |
| Largest City by Island | 0 | - | 4.87 | 71,981 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,087 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,100 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,662 |
| Megacities on a World Map | 0 | - | 4.98 | 255,014 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,907 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,445 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,079 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,958 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,154 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,607 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,685 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,565 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,119 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,417 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,260 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,848 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,294 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,602 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,344 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,841 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,266 |
| Europe Capital to Country | 0 | - | 4.99 | 250,619 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,049 |
| European Capitals by Map | 0 | - | 4.99 | 139,640 |
| African Capitals by Map | 0 | - | 4.99 | 134,047 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,199 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,540 |
| European Coastal Capitals | 0 | - | 4.95 | 90,715 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,461 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,293 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,880 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,084 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,251 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,930 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,669 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,606 |
| Most Populous Islands | 0 | - | 4.80 | 122,984 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,315 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,551 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,855 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,858 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,414 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,269 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,064 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,485 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,412 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,278 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,571 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,116 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,848 |
| Official Cities in the UK | 0 | - | 4.89 | 284,194 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,595 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,026 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,258 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,578 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,131 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,423 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,194 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,240 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 16,013 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,697 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,353 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,123 |
| Boundary Waters | 0 | - | 4.92 | 88,520 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,217 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,196 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,601 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,537 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,502 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,522 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,961 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,585 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,608 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,561 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,281 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 148,715 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,048 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,904 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,189 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,558 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,236 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,769 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,484 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,062 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,776 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,668 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,544 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,022 |
| Biggest City by Region | 0 | - | 4.50 | 36,256 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,173 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,213 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,366 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,328 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,438 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,928 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,532,097 |
| Landlocked Countries | 0 | - | 4.99 | 421,349 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 575,017 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,553 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,174 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,852 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,448 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,440 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,570 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,950 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,278 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,393 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,172 |
| Biggest Cities in China | 0 | - | 4.53 | 158,855 |
| Biggest Cities in India | 0 | - | 4.64 | 67,800 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,691,438 |
| World Capitals Quiz | 0 | - | 5.00 | 5,079,535 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,731 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,627 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,561 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,434 |
| Vietnam War Countries | 0 | - | 4.82 | 94,302 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,716 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,887 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,774,011 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,348 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,835 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,893 |
