| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,358 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,363 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,284 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,790 |
| Countries with Megacities | 0 | - | 4.99 | 264,344 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,650 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,415 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,915 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,484 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,596 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,834 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,413 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,019 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,861 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,108 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,087 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,524 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,688 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,189 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,216 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,939 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,690 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,644 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,578 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,057 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,714 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,183 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,091 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,236 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,768 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,836 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,955 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,899 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,286 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,486 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,348 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,618 |
| Boundary Waters | 0 | - | 4.92 | 88,544 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,227 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,219 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,649 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,564 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,528 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,291 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,814 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,682 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,661 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,094 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,287 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,451 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,955 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,984 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,876 |
| Largest City by Island | 0 | - | 4.87 | 72,014 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,118 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,134 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,695 |
| Megacities on a World Map | 0 | - | 4.98 | 255,149 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,471 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,118 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,036 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,933 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,620 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,167 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,449 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,280 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,872 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,314 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,617 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,380 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,130 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,288 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,096 |
| Most Populous Islands | 0 | - | 4.80 | 123,006 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,320 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,557 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,863 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,286 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,501 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,218 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,131 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,570 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,290 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,547 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,464 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,099 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,466 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,258 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,184 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,457 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,626 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,145 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,881 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,554,424 |
| Landlocked Countries | 0 | - | 4.99 | 421,612 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 575,828 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,691 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,985 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,566 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,806 |
| Population Trivia | 0 | - | 4.32 | 27,509 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,549 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,696 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,555 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,028 |
| Biggest City by Region | 0 | - | 4.50 | 36,269 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,181 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,978 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,605 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,683 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,025 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,219 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,371 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,341 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,613 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,450 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,712 |
| World Capitals Quiz | 0 | - | 5.00 | 5,081,221 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,261 |
| Himalayan Countries | 0 | - | 4.95 | 138,556 |
| Andean Countries | 0 | - | 4.93 | 84,513 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,700 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,694 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,331 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,730 |
| Danube Countries | 0 | - | 4.97 | 71,959 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,961 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,381 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,221 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,698 |
| European Landlocked Countries | 0 | - | 4.99 | 147,087 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,563 |
| Countries with the Most Species | 0 | - | 4.99 | 103,196 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,695 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,560 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,702 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,512 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,193 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,615 |
| Countries in the Alps | 0 | - | 4.87 | 118,147 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,857 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,974 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,618 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,564 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,451 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,918 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,628 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,456 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,155 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,809 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,631 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,493 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,183 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,433 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,484 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,806 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,277 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,148 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,000 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,745 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,992 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,190 |
| Largest Countries By Category | 0 | - | 4.97 | 158,146 |
| Countries by Countries | 0 | - | 4.96 | 63,154 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,635 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,269 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,554 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,469 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,955 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,640 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,776,032 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,679 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,846 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,475 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,480 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,902 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,266 |
| Longest International Borders | 0 | - | 4.99 | 265,135 |
| Countries with Three Borders | 0 | - | 4.96 | 36,591 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,101 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,197 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,059 |
| Demonym of Every Country | 0 | - | 4.91 | 60,600 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,328 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,821 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,480 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,131 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,976 |
| Biggest Cities in History | 0 | - | 4.52 | 90,257 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 77,920 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,488 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,477 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,653 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,468 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,769 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,987 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,365 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,430 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,517 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,463 |
