| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,493 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,279 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,980 |
| Asia Capitals Quiz | 0 | - | 4.98 | 688,451 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,018 |
| Asia Capital to Country | 0 | - | 4.96 | 126,081 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,643 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,314 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,187 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,445 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,338 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,592 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,360 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,435 |
| Capitals of the Stans | 0 | - | 4.95 | 26,570 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,093 |
| Countries with Megacities | 0 | - | 4.99 | 248,585 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,970 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,452 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,343 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,400 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,940 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,596 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,308 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,404 |
| Asia Map Quiz | 0 | - | 4.99 | 910,043 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,363 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,222 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,746 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,239 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,029 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,030 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,576 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,075 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,264 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,033 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,323 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,436 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,932 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,864 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,059 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,007 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,366 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,445 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,969 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,013 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,144 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,850 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,624 |
| Name a City - European Countries | 0 | - | 4.91 | 64,753 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,870 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,670 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,077 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,864 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,588 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,832 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,880 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,766 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,274 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,692 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,719 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,152 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,300 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,760 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,280 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,674 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,849 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,563 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,322 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,998 |
| Largest City by Island | 0 | - | 4.87 | 71,336 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,558 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,877 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,857 |
| Megacities on a World Map | 0 | - | 4.98 | 252,074 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,022 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,994 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,285 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,410 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,405 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,608 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,881 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,609 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,486 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,851 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,733 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,980 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,474 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,973 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,323 |
| Europe Capital to Country | 0 | - | 4.99 | 248,667 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,975 |
| European Capitals by Map | 0 | - | 4.99 | 137,437 |
| African Capitals by Map | 0 | - | 4.99 | 132,715 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,531 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,902 |
| European Coastal Capitals | 0 | - | 4.95 | 90,038 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,947 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,584 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,541 |
| Countries of the Middle East | 0 | - | 4.96 | 199,677 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,443 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,488 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,188 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,885 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,138 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,671 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,532 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,763 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,719 |
| Random Asian City to Country | 0 | - | 4.56 | 44,428 |
| Most Populous Islands | 0 | - | 4.79 | 122,157 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,228 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,442 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,678 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,761 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,717 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,984 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,379 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,111 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,350 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,024 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,693 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,222 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,799 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,521 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,848 |
| Official Cities in the UK | 0 | - | 4.89 | 281,651 |
| Southeast Asian Cities by Map | 0 | - | 4.63 | 26,629 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,037 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,766 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,950 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,911 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,649 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,503 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,081 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 81,885 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,875 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,752 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,378 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,950 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,704 |
| Monarchies of Asia | 0 | - | 4.97 | 70,779 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,580 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 134,482 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,416 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,715 |
| Boundary Waters | 0 | - | 4.92 | 88,176 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,926 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,566 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,701 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,055 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,966 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,127 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,668 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,251 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,096 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,037 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,271 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,540 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,869 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,879 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,161 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,676 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,494 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,864 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,613 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 118,562 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,032 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,937 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,693 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,455 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,648 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,123 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,386 |
| Japan Country Quiz | 0 | - | 4.92 | 141,784 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,497 |
| Syria Country Quiz | 0 | - | 4.81 | 32,510 |
| Provinces of China Map Quiz | 0 | - | 4.91 | 93,100 |
| China Cities Map Quiz | 0 | - | 4.93 | 104,559 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,229 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,123 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,149 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,971 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,815 |
| Biggest City by Region | 0 | - | 4.50 | 36,052 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,982 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,089 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,272 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,047 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,309 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,834 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,108,771 |
| Landlocked Countries | 0 | - | 4.99 | 415,941 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 559,831 |
| The Only Remaining Asian Country . . . | 0 | - | 4.69 | 45,564 |
| States of India Map Quiz | 0 | - | 4.83 | 26,199 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,285 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,950 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,370 |
