| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,692 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,722 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,152 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,423 |
| Countries with Megacities | 0 | - | 4.99 | 265,812 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,217 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,748 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,480 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,832 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,096 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,682 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,250 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,259 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,117 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,601 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,427 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,725 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,971 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,391 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,637 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,542 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,671 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,137 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,768 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,499 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,037 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,681 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,420 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,500 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,024 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,150 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,737 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,958 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,345 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,666 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,001 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,399 |
| Boundary Waters | 0 | - | 4.92 | 88,665 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,329 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,473 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,034 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,787 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,781 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,250 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,117 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,809 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,015 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,403 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,540 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,679 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,080 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,337 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,354 |
| Largest City by Island | 0 | - | 4.87 | 72,245 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,305 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,453 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,964 |
| Megacities on a World Map | 0 | - | 4.98 | 256,095 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,640 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,426 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,674 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,140 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,363 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,519 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,698 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,395 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,064 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,416 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,730 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,583 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,413 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,635 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,653 |
| Most Populous Islands | 0 | - | 4.80 | 123,176 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,349 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,603 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,931 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,401 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,666 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,903 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,671 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,295 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,645 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,722 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,775 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,350 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,780 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,768 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,321 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,693 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,970 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,354 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,065 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,725,173 |
| Landlocked Countries | 0 | - | 4.99 | 423,743 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 582,941 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,816 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,213 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,667 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,982 |
| Population Trivia | 0 | - | 4.32 | 27,534 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,693 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,934 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,604 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,092 |
| Biggest City by Region | 0 | - | 4.50 | 36,330 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,252 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,219 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,877 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,254 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,393 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,269 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,412 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,456 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,078 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,508 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 102,266 |
| World Capitals Quiz | 0 | - | 5.00 | 5,094,285 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,310 |
| Himalayan Countries | 0 | - | 4.94 | 139,491 |
| Andean Countries | 0 | - | 4.94 | 85,035 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,235 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,424 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,791 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,102 |
| Danube Countries | 0 | - | 4.97 | 72,203 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,292 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,617 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,696 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,197 |
| European Landlocked Countries | 0 | - | 4.99 | 147,363 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,967 |
| Countries with the Most Species | 0 | - | 4.99 | 103,411 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,102 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,679 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,790 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,681 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,431 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,844 |
| Countries in the Alps | 0 | - | 4.87 | 118,477 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,046 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,429 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,805 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,805 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,732 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,094 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,909 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,664 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,290 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,014 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,759 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,625 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,382 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,633 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,717 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,358 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,472 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,188 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,347 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,872 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,641 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,374 |
| Largest Countries By Category | 0 | - | 4.97 | 158,532 |
| Countries by Countries | 0 | - | 4.96 | 63,433 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,997 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,345 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,618 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,263 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,200 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,895 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,791,495 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,082 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,923 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,648 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,571 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,538 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,439 |
| Longest International Borders | 0 | - | 4.99 | 265,510 |
| Countries with Three Borders | 0 | - | 4.96 | 36,687 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,238 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,357 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,120 |
| Demonym of Every Country | 0 | - | 4.90 | 61,135 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,353 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,934 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,584 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,497 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,153 |
| Biggest Cities in History | 0 | - | 4.52 | 90,436 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,680 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,797 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,774 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,986 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,544 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,893 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,250 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,803 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,701 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,613 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,582 |
