| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,972 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,994 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,337 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,129 |
| Countries with Megacities | 0 | - | 4.99 | 267,062 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,823 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,121 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,138 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,230 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,010 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,458 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,483 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,429 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,319 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,017 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,642 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,894 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,211 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,607 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,925 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,938 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,738 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,383 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,449 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,936 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,777 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,236 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,956 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,613 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,716 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,207 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,386 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,352 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,027 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,385 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,581 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,911 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,003 |
| Boundary Waters | 0 | - | 4.92 | 88,759 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,409 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,693 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,339 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,960 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,959 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,975 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,393 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,903 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,348 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,666 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,745 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,887 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,193 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,580 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,649 |
| Largest City by Island | 0 | - | 4.87 | 72,446 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,419 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,681 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,134 |
| Megacities on a World Map | 0 | - | 4.98 | 256,883 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,761 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,658 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,378 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,267 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,646 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,799 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,880 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,519 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,193 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,512 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,854 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,760 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,651 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,921 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,911 |
| Most Populous Islands | 0 | - | 4.80 | 123,323 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,381 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,647 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,978 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,489 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,801 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,402 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,031 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,692 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,852 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,838 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,975 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,558 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,982 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,140 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,418 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,668 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,196 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,507 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,236 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,871,738 |
| Landlocked Countries | 0 | - | 4.99 | 425,739 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 588,100 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,920 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,390 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,759 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,122 |
| Population Trivia | 0 | - | 4.32 | 27,567 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,785 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,096 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,645 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,154 |
| Biggest City by Region | 0 | - | 4.50 | 36,389 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,336 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,311 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,970 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,743 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,713 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,306 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,440 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,549 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,453 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,569 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,488 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,203 |
| Himalayan Countries | 0 | - | 4.93 | 140,200 |
| Andean Countries | 0 | - | 4.94 | 85,418 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,570 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,959 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,138 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,414 |
| Danube Countries | 0 | - | 4.97 | 72,373 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,577 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,825 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,094 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,589 |
| European Landlocked Countries | 0 | - | 4.99 | 147,598 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,283 |
| Countries with the Most Species | 0 | - | 4.99 | 103,553 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,394 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,773 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,880 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,834 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,573 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,006 |
| Countries in the Alps | 0 | - | 4.87 | 118,760 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,606 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,840 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,956 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,015 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,938 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,241 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,387 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,854 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,415 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,164 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,862 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,737 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,550 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,775 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,879 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,813 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,601 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 68,532 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,654 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,664 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,118 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,496 |
| Largest Countries By Category | 0 | - | 4.97 | 158,848 |
| Countries by Countries | 0 | - | 4.96 | 63,635 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,249 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,397 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,664 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,950 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,421 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,099 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,812 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,451 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,982 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,795 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,614 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,070 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,566 |
| Longest International Borders | 0 | - | 4.99 | 265,807 |
| Countries with Three Borders | 0 | - | 4.96 | 36,769 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,347 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,490 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,179 |
| Demonym of Every Country | 0 | - | 4.90 | 61,471 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,392 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,012 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,672 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,847 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,109 |
| Biggest Cities in History | 0 | - | 4.52 | 90,585 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,993 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,059 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,024 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,305 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,610 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,595 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,435 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,173 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,905 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,692 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,666 |
