| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,596 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,825 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,801 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,543 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,857 |
| Countries with Megacities | 0 | - | 4.99 | 254,973 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,717 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,898 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,013 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,888 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,618 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,556 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,220 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,665 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,490 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,306 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,624 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,236 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,312 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,871 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,405 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,805 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,969 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,816 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,612 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,301 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,146 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,378 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,620 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,721 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,178 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,314 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,744 |
| Countries by Three Words #2 | 0 | - | 4.97 | 201,715 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,028 |
| European Countries by Clue | 0 | - | 4.92 | 183,449 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 100,882 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,260 |
| Biggest Cities in the United States | 0 | - | 4.93 | 975,000 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,393 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,787 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,202 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,993 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,324 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,478 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,155 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,647 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,932 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,117 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,972 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,906 |
| Largest City by Island | 0 | - | 4.87 | 71,623 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,745 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,604 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,188 |
| Megacities on a World Map | 0 | - | 4.98 | 253,128 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,728 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,170 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,632 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,097 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,614 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,016 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,687 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,056 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,040 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,305 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,132 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,412 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,039 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,736 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,850 |
| Boundary Waters | 0 | - | 4.92 | 88,357 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,059 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,874 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,105 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,302 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,235 |
| Most Populous Islands | 0 | - | 4.80 | 122,752 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,270 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,493 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,337 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,436 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,961 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,582 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,753 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,250 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,997 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,106 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,635 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,283 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,643 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,566 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,860 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,553 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,028 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,760 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,551 |
| The Only American Country ... | 0 | - | 4.92 | 121,371 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,901 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,964 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,219 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,768 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,398 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,301,012 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,467 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,299 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,368 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,039 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,906 |
| Biggest City by Region | 0 | - | 4.50 | 36,111 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,044 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,773 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,372 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,786 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,451 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,144 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,316 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,148 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,857 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,354 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 100,954 |
| Landlocked Countries | 0 | - | 4.99 | 418,389 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 566,816 |
| Countries by Three Words #3 | 0 | - | 4.80 | 128,403 |
| Countries by Three Words #4 | 0 | - | 4.44 | 100,507 |
| Countries by a Single Clue #1 | 0 | - | 4.75 | 100,582 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 94,903 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,704 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 76,878 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 86,870 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 94,849 |
| Countries by a Single Clue #10 | 0 | - | 4.55 | 67,786 |
| Countries by a Single Clue #11 | 0 | - | 4.58 | 76,448 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 78,894 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,260 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,876 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,480 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,581 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,397 |
| Population Trivia | 0 | - | 4.32 | 27,470 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,978 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,014 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,070 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,193 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,522 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,418 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,006 |
| World Capitals Quiz | 0 | - | 5.00 | 5,061,028 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,702 |
| Himalayan Countries | 0 | - | 4.94 | 137,174 |
| Andean Countries | 0 | - | 4.95 | 83,795 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,041 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,443 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,730 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,267 |
| Danube Countries | 0 | - | 4.97 | 71,598 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,464 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,998 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,544 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,607 |
| European Landlocked Countries | 0 | - | 4.99 | 146,706 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,044 |
| Countries with the Most Species | 0 | - | 4.99 | 102,842 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,182 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,410 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,565 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,268 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,939 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,319 |
| Countries in the Alps | 0 | - | 4.87 | 117,604 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,080 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,268 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,374 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,925 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,032 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,405 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,212 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,138 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,935 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,509 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,449 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,308 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,882 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,156 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,172 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,075 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,024 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,541 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,447 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,115 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,103 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,955 |
| Largest Countries By Category | 0 | - | 4.97 | 157,551 |
| Countries by Countries | 0 | - | 4.96 | 62,792 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,137 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,147 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,461 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,360 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,606 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,277 |
