| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,712 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,111 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,551 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,507 |
| Countries with Megacities | 0 | - | 4.99 | 247,351 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,337 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,127 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,759 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,045 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,801 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,828 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,928 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,163 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,941 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,127 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,974 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,536 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,717 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,360 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,711 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,761 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,101 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,948 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,206 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,556 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,568 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,658 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,092 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,212 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,791 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,747 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,607 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,674 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,103 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,849 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,415 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,975 |
| Boundary Waters | 0 | - | 4.92 | 88,068 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,834 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,349 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,373 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,875 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,787 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,250 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,332 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,182 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,423 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,022 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,470 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,657 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,343 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,599 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,915 |
| Largest City by Island | 0 | - | 4.87 | 71,092 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,419 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,610 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,120 |
| Megacities on a World Map | 0 | - | 4.98 | 251,142 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,830 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,918 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,882 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,178 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,223 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,556 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,372 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,337 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,676 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,618 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,869 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,287 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,183 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,198 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,559 |
| Most Populous Islands | 0 | - | 4.79 | 122,023 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,211 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,411 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,631 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,877 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,973 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,075 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,094 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,934 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,039 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,853 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,469 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,185 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,098 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,479 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,592 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,274 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,573 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,334 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,653 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,953,198 |
| Landlocked Countries | 0 | - | 4.99 | 413,982 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 554,110 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,193 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,050 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,159 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 112,177 |
| Population Trivia | 0 | - | 4.32 | 27,426 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,993 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,960 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,918 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,727 |
| Biggest City by Region | 0 | - | 4.50 | 36,006 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,916 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,560 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,138 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,605 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,666 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,027 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,231 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,937 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,875 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,265 |
| World Capitals Quiz | 0 | - | 5.00 | 5,034,237 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,752 |
| Himalayan Countries | 0 | - | 4.95 | 135,492 |
| Andean Countries | 0 | - | 4.94 | 82,891 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,277 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,290 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,970 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,653 |
| Danube Countries | 0 | - | 4.97 | 71,116 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,816 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,578 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,565 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,472 |
| European Landlocked Countries | 0 | - | 4.99 | 145,799 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,266 |
| Countries with the Most Species | 0 | - | 4.99 | 95,261 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,407 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,212 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,384 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,977 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,600 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,980 |
| Countries in the Alps | 0 | - | 4.86 | 116,896 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,610 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,334 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,040 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,460 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,220 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,042 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,620 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,787 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,446 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,104 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,206 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,063 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,481 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,790 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,783 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,153 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,685 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,277 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,828 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,514 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,806 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,624 |
| Largest Countries By Category | 0 | - | 4.97 | 156,835 |
| Countries by Countries | 0 | - | 4.96 | 62,298 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,462 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,977 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,343 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,816 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,154 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,810 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,720,319 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,755 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,496 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,588 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,251 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,533 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,652 |
| Longest International Borders | 0 | - | 4.99 | 263,670 |
| Countries with Three Borders | 0 | - | 4.96 | 36,208 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,621 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,707 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,873 |
| Demonym of Every Country | 0 | - | 4.91 | 58,680 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,216 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,422 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,056 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,443 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,369 |
| Biggest Cities in History | 0 | - | 4.52 | 89,163 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,136 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,340 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,506 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,377 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,204 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,778 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,856 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,573 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,573 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,208 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,024 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,548 |
