| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,517 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,530 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,289 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,121 |
| Countries with Megacities | 0 | - | 4.99 | 265,098 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,934 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,602 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,203 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,671 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,410 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,275 |
| Biggest Cities in the World | 0 | - | 4.91 | 801,989 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,128 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,016 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,377 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,261 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,631 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,824 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,290 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,450 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,290 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,238 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,913 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 146,163 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,306 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,893 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,487 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,268 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,377 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,909 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,010 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,399 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,923 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,315 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,144 |
| Biggest Cities in the United States | 0 | - | 4.94 | 982,045 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,996 |
| Boundary Waters | 0 | - | 4.92 | 88,613 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,285 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,357 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,844 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,688 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,653 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,764 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,953 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,732 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,829 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,242 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,399 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,549 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,018 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,175 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,125 |
| Largest City by Island | 0 | - | 4.87 | 72,135 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,230 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,309 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,848 |
| Megacities on a World Map | 0 | - | 4.98 | 255,622 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,564 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,278 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,415 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,034 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,818 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,350 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,571 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,339 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,977 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,368 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,672 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,476 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,276 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,453 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,914 |
| Most Populous Islands | 0 | - | 4.80 | 123,097 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,332 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,584 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,894 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,340 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,570 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,503 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,357 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,806 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,436 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,620 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,597 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,213 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,645 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,490 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,255 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,140 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,826 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,252 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,965 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,642,290 |
| Landlocked Countries | 0 | - | 4.99 | 422,727 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 579,393 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,747 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,095 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,628 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,899 |
| Population Trivia | 0 | - | 4.32 | 27,525 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,635 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,810 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,584 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,065 |
| Biggest City by Region | 0 | - | 4.50 | 36,300 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,217 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,114 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,760 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,984 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,205 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,241 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,389 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,396 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,855 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,478 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,997 |
| World Capitals Quiz | 0 | - | 5.00 | 5,087,938 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,895 |
| Himalayan Countries | 0 | - | 4.95 | 139,069 |
| Andean Countries | 0 | - | 4.93 | 84,821 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,050 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,137 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,629 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,944 |
| Danube Countries | 0 | - | 4.97 | 72,109 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,142 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,512 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,477 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,966 |
| European Landlocked Countries | 0 | - | 4.99 | 147,243 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,785 |
| Countries with the Most Species | 0 | - | 4.99 | 103,321 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,911 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,635 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,757 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,604 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,330 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,752 |
| Countries in the Alps | 0 | - | 4.87 | 118,324 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,602 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,215 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,727 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,686 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,598 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,008 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,766 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,577 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,230 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,935 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,699 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,578 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,307 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,546 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,612 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,079 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,376 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,559 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,220 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,351 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,360 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,295 |
| Largest Countries By Category | 0 | - | 4.97 | 158,359 |
| Countries by Countries | 0 | - | 4.96 | 63,328 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,788 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,312 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,588 |
| All Countries by Population With a Map | 0 | - | 4.99 | 109,848 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,099 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,759 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,784,064 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,768 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,877 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,568 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,522 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,192 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,347 |
| Longest International Borders | 0 | - | 4.99 | 265,332 |
| Countries with Three Borders | 0 | - | 4.96 | 36,643 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,164 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,281 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,093 |
| Demonym of Every Country | 0 | - | 4.91 | 60,877 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,343 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,880 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,537 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 165,191 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,571 |
| Biggest Cities in History | 0 | - | 4.52 | 90,346 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,412 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,642 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,634 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,822 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,507 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,403 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,119 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,604 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,583 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,566 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,521 |
