| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,050 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,080 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,914 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,297 |
| Countries with Megacities | 0 | - | 4.99 | 267,403 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,972 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,219 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,297 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,323 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,851 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,678 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,140 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,499 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,375 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,330 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,723 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,943 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,278 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,662 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,999 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,045 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,856 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,570 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,538 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,214 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,846 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,302 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,018 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,666 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,767 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,251 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,453 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,512 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,036 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,392 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,851 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,812 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,209 |
| Boundary Waters | 0 | - | 4.92 | 88,794 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,429 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,752 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,406 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,003 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,019 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,307 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,487 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,936 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,440 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,740 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,797 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,948 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,218 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,669 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,742 |
| Largest City by Island | 0 | - | 4.87 | 72,490 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,451 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,744 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,187 |
| Megacities on a World Map | 0 | - | 4.98 | 257,142 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,796 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,742 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,580 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,305 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,742 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,888 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,935 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,560 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,223 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,539 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,886 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,803 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,721 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,003 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,303 |
| Most Populous Islands | 0 | - | 4.80 | 123,374 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,389 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,658 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,994 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,509 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,836 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,698 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,261 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,067 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 104,969 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,918 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,018 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,603 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,038 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,238 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,452 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,977 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,273 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,545 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,291 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,914,734 |
| Landlocked Countries | 0 | - | 4.99 | 426,439 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 589,822 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,950 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,443 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,780 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,169 |
| Population Trivia | 0 | - | 4.32 | 27,577 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,816 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,140 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,668 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,169 |
| Biggest City by Region | 0 | - | 4.50 | 36,403 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,353 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,330 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,994 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,883 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,792 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,317 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,452 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,580 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,574 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,584 |
| World Capitals Quiz | 0 | - | 5.00 | 5,109,083 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,513 |
| Himalayan Countries | 0 | - | 4.93 | 140,453 |
| Andean Countries | 0 | - | 4.94 | 85,592 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,736 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,185 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,298 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,538 |
| Danube Countries | 0 | - | 4.97 | 72,464 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,672 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,895 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,244 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,719 |
| European Landlocked Countries | 0 | - | 4.99 | 147,660 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,386 |
| Countries with the Most Species | 0 | - | 4.99 | 103,599 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,493 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,788 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,910 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,871 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,612 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,063 |
| Countries in the Alps | 0 | - | 4.87 | 118,846 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,766 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,977 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,006 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,080 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,026 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,311 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,466 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,911 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,459 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,224 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,907 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,774 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,598 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,841 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,939 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,967 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,653 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,319 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,733 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,916 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,273 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,547 |
| Largest Countries By Category | 0 | - | 4.97 | 158,941 |
| Countries by Countries | 0 | - | 4.96 | 63,699 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,320 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,422 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,686 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,141 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,466 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,143 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,396 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,512 |
| Western Europe Map Quiz | 0 | - | 4.85 | 94,005 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,834 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,628 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,218 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,598 |
| Longest International Borders | 0 | - | 4.99 | 265,885 |
| Countries with Three Borders | 0 | - | 4.96 | 36,797 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,381 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,513 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,191 |
| Demonym of Every Country | 0 | - | 4.90 | 61,538 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,399 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,038 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,703 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,923 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,387 |
| Biggest Cities in History | 0 | - | 4.52 | 90,634 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,097 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,125 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,092 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,388 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,618 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,765 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,503 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,291 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,960 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,718 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,696 |
