| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,869 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,181 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,867 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,621 |
| Countries with Megacities | 0 | - | 4.99 | 247,553 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,457 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,202 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,874 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,128 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,286 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,950 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,349 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,196 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,022 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,272 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,022 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,562 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,811 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,406 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,799 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,861 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,280 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,040 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,513 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,661 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,627 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,717 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,149 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,258 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,817 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,794 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,667 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,681 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,112 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,021 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,927 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,097 |
| Boundary Waters | 0 | - | 4.92 | 88,081 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,851 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,390 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,437 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,904 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,814 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,348 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,396 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,207 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,480 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,071 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,498 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,690 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,352 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,751 |
| Biggest Cities by Language | 0 | - | 4.96 | 237,212 |
| Largest City by Island | 0 | - | 4.87 | 71,125 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,438 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,646 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,337 |
| Megacities on a World Map | 0 | - | 4.98 | 251,269 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,871 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,950 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,955 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,203 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,279 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,612 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,417 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,362 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,705 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,644 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,899 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,318 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,226 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,245 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,772 |
| Most Populous Islands | 0 | - | 4.79 | 122,047 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,212 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,418 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,642 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,892 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,998 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,149 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,147 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,985 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,067 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,874 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,522 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,213 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,150 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,595 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,609 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,422 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,630 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,370 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,685 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,978,953 |
| Landlocked Countries | 0 | - | 4.99 | 414,349 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 555,064 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,216 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,078 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,177 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 113,775 |
| Population Trivia | 0 | - | 4.32 | 27,429 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,008 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,993 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,922 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,746 |
| Biggest City by Region | 0 | - | 4.50 | 36,015 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,927 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,573 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,153 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,670 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,712 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,040 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,243 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,949 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,926 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,267 |
| World Capitals Quiz | 0 | - | 5.00 | 5,036,279 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,886 |
| Himalayan Countries | 0 | - | 4.95 | 135,611 |
| Andean Countries | 0 | - | 4.94 | 82,965 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,329 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,374 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,029 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,704 |
| Danube Countries | 0 | - | 4.97 | 71,152 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,854 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,609 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,633 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,549 |
| European Landlocked Countries | 0 | - | 4.99 | 145,849 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,309 |
| Countries with the Most Species | 0 | - | 4.99 | 95,287 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,464 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,223 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,394 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,998 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,636 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,007 |
| Countries in the Alps | 0 | - | 4.86 | 116,944 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,651 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,394 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,073 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,483 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,264 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,067 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,666 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,820 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,545 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,125 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,221 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,086 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,508 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,807 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,802 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,218 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,716 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,295 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,871 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,674 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,913 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,656 |
| Largest Countries By Category | 0 | - | 4.97 | 156,877 |
| Countries by Countries | 0 | - | 4.96 | 62,328 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,520 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,991 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,351 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,952 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,188 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,838 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,722,786 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,786 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,515 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,610 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,257 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,631 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,682 |
| Longest International Borders | 0 | - | 4.99 | 263,939 |
| Countries with Three Borders | 0 | - | 4.96 | 36,232 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,640 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,727 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,883 |
| Demonym of Every Country | 0 | - | 4.91 | 58,715 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,221 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,440 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,066 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,493 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,538 |
| Biggest Cities in History | 0 | - | 4.52 | 89,186 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,148 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,389 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,538 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,432 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,218 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,807 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,907 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,641 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,596 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,217 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,046 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,582 |
