| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,026 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,257 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,413 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,761 |
| Countries with Megacities | 0 | - | 4.99 | 247,902 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,642 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,271 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,026 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,225 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,199 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,168 |
| Biggest Cities in the World | 0 | - | 4.91 | 792,058 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,250 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,103 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,388 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,100 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,591 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,879 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,464 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,916 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,046 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,570 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,147 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,889 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,782 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,719 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,813 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,235 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,324 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,869 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,882 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,782 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,693 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,127 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,410 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,782 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,269 |
| Boundary Waters | 0 | - | 4.92 | 88,117 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,882 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,452 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,526 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,960 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,869 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,545 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,500 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,239 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,579 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,135 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,558 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,750 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,379 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,956 |
| Biggest Cities by Language | 0 | - | 4.96 | 242,942 |
| Largest City by Island | 0 | - | 4.87 | 71,196 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,488 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,732 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,598 |
| Megacities on a World Map | 0 | - | 4.98 | 251,543 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,916 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,050 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,110 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,281 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,380 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,689 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,473 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,400 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,756 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,667 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,923 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,371 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,301 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,332 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,204 |
| Most Populous Islands | 0 | - | 4.79 | 122,074 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,220 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,429 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,655 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,916 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,035 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,296 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,249 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,091 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,117 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,903 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,582 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,268 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,209 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,758 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,640 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,709 |
| Megacities on an Empty Map | 0 | - | 4.96 | 109,818 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,425 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,741 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,018,335 |
| Landlocked Countries | 0 | - | 4.99 | 414,863 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 556,425 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,256 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,147 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,209 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 114,573 |
| Population Trivia | 0 | - | 4.32 | 27,436 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,045 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,041 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,939 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,776 |
| Biggest City by Region | 0 | - | 4.50 | 36,028 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,942 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,602 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,190 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,811 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,816 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,059 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,248 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,975 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,057 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,285 |
| World Capitals Quiz | 0 | - | 5.00 | 5,039,835 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,089 |
| Himalayan Countries | 0 | - | 4.95 | 135,804 |
| Andean Countries | 0 | - | 4.94 | 83,078 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,409 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,511 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,109 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,772 |
| Danube Countries | 0 | - | 4.97 | 71,213 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,937 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,661 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,761 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,671 |
| European Landlocked Countries | 0 | - | 4.99 | 145,908 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,424 |
| Countries with the Most Species | 0 | - | 4.99 | 95,314 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,571 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,245 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,421 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,033 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,677 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,043 |
| Countries in the Alps | 0 | - | 4.86 | 117,034 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,704 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,494 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,127 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,536 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,324 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,106 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,731 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,862 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,644 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,170 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,248 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,112 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,572 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,848 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,852 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,347 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,758 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,330 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,969 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,959 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,065 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,694 |
| Largest Countries By Category | 0 | - | 4.97 | 156,949 |
| Countries by Countries | 0 | - | 4.96 | 62,397 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,585 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,005 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,368 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,140 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,236 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,886 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,726,829 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,839 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,527 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,662 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,276 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,752 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,711 |
| Longest International Borders | 0 | - | 4.99 | 264,023 |
| Countries with Three Borders | 0 | - | 4.96 | 36,267 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,677 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,765 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,903 |
| Demonym of Every Country | 0 | - | 4.91 | 58,751 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,225 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,465 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,099 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,575 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,830 |
| Biggest Cities in History | 0 | - | 4.52 | 89,234 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,170 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,475 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,584 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,520 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,238 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,852 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,978 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,734 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,652 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,237 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,090 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,674 |
