| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,163 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,424 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,206 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,045 |
| Countries with Megacities | 0 | - | 4.99 | 248,496 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,927 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,428 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,314 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,371 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,704 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,547 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,159 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,352 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,213 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,704 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,218 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,901 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,014 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,565 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,059 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,236 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,981 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,302 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,377 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,917 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,847 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,983 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,354 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,429 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,955 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,993 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,135 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,713 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,149 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,999 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,616 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,585 |
| Boundary Waters | 0 | - | 4.92 | 88,167 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,922 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,559 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,677 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,048 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,957 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,974 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,667 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,294 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,735 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,267 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,670 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,837 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,555 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,280 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,886 |
| Largest City by Island | 0 | - | 4.87 | 71,324 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,552 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,865 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,833 |
| Megacities on a World Map | 0 | - | 4.98 | 252,025 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,984 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,268 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,389 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,390 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,573 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,859 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,596 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,474 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,845 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,729 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,971 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,464 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,426 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,472 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,936 |
| Most Populous Islands | 0 | - | 4.79 | 122,144 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,228 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,442 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,673 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,975 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,104 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,567 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,470 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,335 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,260 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,973 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,703 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,357 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,331 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,996 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,686 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,163 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,561 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,515 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,837 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,097,972 |
| Landlocked Countries | 0 | - | 4.99 | 415,809 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 559,361 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,312 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,250 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,267 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,078 |
| Population Trivia | 0 | - | 4.32 | 27,447 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,118 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,141 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,967 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,814 |
| Biggest City by Region | 0 | - | 4.50 | 36,047 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,978 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 68,660 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,241 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,066 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,025 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,086 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,271 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,042 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,251 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,307 |
| World Capitals Quiz | 0 | - | 5.00 | 5,045,565 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,506 |
| Himalayan Countries | 0 | - | 4.95 | 136,140 |
| Andean Countries | 0 | - | 4.95 | 83,260 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,563 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,754 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,264 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,893 |
| Danube Countries | 0 | - | 4.97 | 71,308 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,074 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,762 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,969 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,919 |
| European Landlocked Countries | 0 | - | 4.99 | 146,016 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,616 |
| Countries with the Most Species | 0 | - | 4.99 | 95,375 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,755 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,290 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,458 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,097 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,747 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,122 |
| Countries in the Alps | 0 | - | 4.86 | 117,202 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,816 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,704 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,194 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,638 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,442 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,188 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,875 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,932 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,736 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,267 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,301 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,169 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,656 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,920 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,927 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,566 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,835 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,372 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,105 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,526 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,355 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,763 |
| Largest Countries By Category | 0 | - | 4.97 | 157,126 |
| Countries by Countries | 0 | - | 4.96 | 62,500 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,756 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,048 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,392 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,450 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,341 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,015 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,734,655 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,941 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,574 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,761 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,304 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,030 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,798 |
| Longest International Borders | 0 | - | 4.99 | 264,203 |
| Countries with Three Borders | 0 | - | 4.96 | 36,312 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,735 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,821 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,932 |
| Demonym of Every Country | 0 | - | 4.91 | 58,840 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,238 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,519 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,180 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,699 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,315 |
| Biggest Cities in History | 0 | - | 4.52 | 89,311 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,197 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,612 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,717 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,681 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,258 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,949 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,137 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,929 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,768 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,281 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,164 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,772 |
