| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,779 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,809 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,848 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,724 |
| Countries with Megacities | 0 | - | 4.99 | 266,247 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,449 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,865 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,742 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,978 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,927 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,936 |
| Biggest Cities in the World | 0 | - | 4.92 | 804,003 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,312 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,179 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,714 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,497 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,784 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,059 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,461 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,757 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,699 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,927 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,251 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,223 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,591 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,113 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,766 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,501 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,566 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,090 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,229 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,943 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,978 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,353 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,954 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,912 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,577 |
| Boundary Waters | 0 | - | 4.92 | 88,702 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,354 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,532 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,130 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,834 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,830 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,452 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,199 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,840 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,122 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,488 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,612 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,745 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,117 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,408 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,450 |
| Largest City by Island | 0 | - | 4.87 | 72,311 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,335 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,533 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,018 |
| Megacities on a World Map | 0 | - | 4.98 | 256,369 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,677 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,499 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,867 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,179 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,468 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,605 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,750 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,430 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,106 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,443 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,777 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,635 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,482 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,731 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,111 |
| Most Populous Islands | 0 | - | 4.80 | 123,220 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,359 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,611 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,943 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,419 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,715 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,056 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,784 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,438 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,716 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,753 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,852 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,438 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,846 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,939 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,349 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,987 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,034 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,411 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,120 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,766,532 |
| Landlocked Countries | 0 | - | 4.99 | 424,273 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 584,647 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,845 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,263 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,693 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,025 |
| Population Trivia | 0 | - | 4.32 | 27,543 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,726 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,977 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,618 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,113 |
| Biggest City by Region | 0 | - | 4.50 | 36,351 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,283 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,242 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,249 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,912 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,394 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,499 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,281 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,419 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,490 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,207 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,529 |
| World Capitals Quiz | 0 | - | 5.00 | 5,097,860 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,535 |
| Himalayan Countries | 0 | - | 4.94 | 139,692 |
| Andean Countries | 0 | - | 4.94 | 85,144 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,320 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,573 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,897 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,177 |
| Danube Countries | 0 | - | 4.97 | 72,253 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,387 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,684 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,810 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,300 |
| European Landlocked Countries | 0 | - | 4.99 | 147,431 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,048 |
| Countries with the Most Species | 0 | - | 4.99 | 103,457 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,179 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,701 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,813 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,728 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,456 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,880 |
| Countries in the Alps | 0 | - | 4.87 | 118,549 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,227 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,559 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,844 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,855 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,777 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,117 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,994 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,713 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,330 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,048 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,782 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,650 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,428 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,666 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,757 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,455 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,504 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,466 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,457 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,112 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,782 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,412 |
| Largest Countries By Category | 0 | - | 4.97 | 158,605 |
| Countries by Countries | 0 | - | 4.96 | 63,485 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,058 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,359 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,638 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,465 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,249 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,958 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,794,959 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,316 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,942 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,704 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,584 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,699 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,467 |
| Longest International Borders | 0 | - | 4.99 | 265,596 |
| Countries with Three Borders | 0 | - | 4.96 | 36,711 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,278 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,414 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,138 |
| Demonym of Every Country | 0 | - | 4.90 | 61,264 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,364 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,958 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,608 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,602 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,444 |
| Biggest Cities in History | 0 | - | 4.52 | 90,485 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,797 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,887 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,845 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,092 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,563 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,124 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,308 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,902 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,776 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,642 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,609 |
