| Countries of Europe by Population | 0 | - | 4.98 | 178,110 |
| Largest City by Island | 0 | - | 4.87 | 71,053 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,839 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,637 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,011 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,037 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,990 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,017 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,871 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,000 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,831 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,261 |
| Countries with Megacities | 0 | - | 4.99 | 246,973 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,150 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,992 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,567 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,889 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,183 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,670 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,725 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,501 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,384 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,803 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,124 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,849 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,944 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,894 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,500 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,613 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,280 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,663 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,699 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,963 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,877 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,071 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,501 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,536 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,664 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,592 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,062 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,173 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,758 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,695 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,539 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,765 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,811 |
| Name a City - European Countries | 0 | - | 4.92 | 64,417 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,372 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,982 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,809 |
| Australia Map Quiz | 0 | - | 4.94 | 342,514 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,412 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,478 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,247 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,656 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,091 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,153 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,352 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,947 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,414 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,604 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,306 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,494 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,862 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,395 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,558 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,670 |
| Megacities on a World Map | 0 | - | 4.98 | 250,995 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,317 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,804 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,875 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,782 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,148 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,161 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,486 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,307 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,285 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,617 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,577 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,819 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,228 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,372 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,839 |
| Europe Capital to Country | 0 | - | 4.99 | 247,942 |
| Asia Capital to Country | 0 | - | 4.96 | 125,771 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,477 |
| European Capitals by Map | 0 | - | 4.99 | 136,307 |
| African Capitals by Map | 0 | - | 4.99 | 132,192 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,153 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,207 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,629 |
| European Coastal Capitals | 0 | - | 4.95 | 89,774 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,192 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,856 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,428 |
| African Island Countries | 0 | - | 4.96 | 100,800 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,133 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,119 |
| Islands by Country #1 | 0 | - | 4.87 | 174,496 |
| Australian States and Territories | 0 | - | 4.96 | 140,920 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,022 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,605 |
| Most Populous Islands | 0 | - | 4.79 | 121,999 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,203 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,408 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,616 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,409 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,850 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,149 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,940 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,052 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,357 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,572 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,084 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,519 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,301 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,602 |
| Official Cities in the UK | 0 | - | 4.89 | 280,579 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,807 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,326 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,919 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,677 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,421 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,141 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,189 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,714 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,462 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,780 |
| Richest Island Countries | 0 | - | 4.84 | 99,525 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,439 |
| Flags of Oceania | 0 | - | 5.00 | 255,248 |
| Capitals of the Stans | 0 | - | 4.95 | 26,413 |
| Boundary Waters | 0 | - | 4.92 | 88,047 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,818 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,294 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,309 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,850 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,740 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,958 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,539 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,121 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,497 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,605 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,807 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 99,815 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,217 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,970 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,397 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,768 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,409 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,872 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,674 |
| Most Visited Countries by Australians | 0 | - | 4.94 | 90,224 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,516 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,209 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 102,542 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,920 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,906 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,708 |
| Biggest City by Region | 0 | - | 4.50 | 35,997 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,904 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,020 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,222 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,923 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,260 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,924,502 |
| Landlocked Countries | 0 | - | 4.99 | 413,669 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 553,115 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,297 |
| Tonga Country Quiz | 0 | - | 4.82 | 20,351 |
| Palau Country Quiz | 0 | - | 4.89 | 22,845 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,138 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,795 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,205 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,294 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,459 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,304 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,742 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,799 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,513 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,542 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,765 |
| World Capitals Quiz | 0 | - | 5.00 | 5,031,971 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,464 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,200 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,083 |
| Random European Capital to Country | 0 | - | 4.98 | 189,233 |
| Random European Country to Capital | 0 | - | 4.92 | 147,473 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,416 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,428 |
| Random African Capital to Country | 0 | - | 4.97 | 99,743 |
| Random African Country to Capital | 0 | - | 4.94 | 70,236 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,315 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,117 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,163 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,008 |
| Population Trivia | 0 | - | 4.32 | 27,425 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,399 |
| Biggest Cities in History | 0 | - | 4.52 | 89,134 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,122 |
