| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,233 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,254 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,031 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,651 |
| Countries with Megacities | 0 | - | 4.99 | 268,171 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,294 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,406 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,628 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,521 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,811 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,200 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,515 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,615 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,507 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,621 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,889 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,258 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,424 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,762 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,154 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,284 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,019 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 228,000 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,764 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,800 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,014 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,435 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,157 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,751 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,893 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,352 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,613 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,865 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,072 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,427 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,378 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,827 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,661 |
| Boundary Waters | 0 | - | 4.92 | 88,870 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,490 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,900 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,635 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,104 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,124 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,804 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,727 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 96,002 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,650 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,922 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,939 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,105 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,293 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,838 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,930 |
| Largest City by Island | 0 | - | 4.87 | 72,608 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,529 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,933 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,297 |
| Megacities on a World Map | 0 | - | 4.98 | 257,644 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,880 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,886 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,908 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,925 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,113 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,066 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,643 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,317 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,592 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,952 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,913 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,885 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,467 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,519 |
| Most Populous Islands | 0 | - | 4.80 | 123,476 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,412 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,690 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,038 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,560 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,950 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,337 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,037 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,557 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,416 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,151 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,006 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,158 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,757 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,381 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,442 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,505 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,599 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,413 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,655 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,416 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,005,693 |
| Landlocked Countries | 0 | - | 4.99 | 427,694 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 593,174 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,019 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,561 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,835 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,289 |
| Population Trivia | 0 | - | 4.32 | 27,600 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,892 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,237 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,690 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,189 |
| Biggest City by Region | 0 | - | 4.50 | 36,430 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,388 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,386 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,050 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,215 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,995 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,334 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,466 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,638 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,791 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,611 |
| World Capitals Quiz | 0 | - | 5.00 | 5,116,986 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,128 |
| Himalayan Countries | 0 | - | 4.93 | 141,010 |
| Andean Countries | 0 | - | 4.94 | 85,895 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,007 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,623 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,551 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,757 |
| Danube Countries | 0 | - | 4.97 | 72,607 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,872 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,020 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,526 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 151,010 |
| European Landlocked Countries | 0 | - | 4.99 | 147,820 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,605 |
| Countries with the Most Species | 0 | - | 4.99 | 103,672 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,710 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,832 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,974 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,958 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,707 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,175 |
| Countries in the Alps | 0 | - | 4.87 | 119,047 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,118 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,253 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,091 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,218 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,190 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,424 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,643 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,033 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,537 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,350 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,977 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,851 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,705 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,961 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,063 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,256 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,768 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,768 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,904 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,557 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,632 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,642 |
| Largest Countries By Category | 0 | - | 4.97 | 159,188 |
| Countries by Countries | 0 | - | 4.97 | 63,853 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,520 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,458 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,717 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,619 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,602 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,289 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,533 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,626 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,034 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,925 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,669 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,536 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,695 |
| Longest International Borders | 0 | - | 4.99 | 266,087 |
| Countries with Three Borders | 0 | - | 4.96 | 36,858 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,447 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,594 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,220 |
| Demonym of Every Country | 0 | - | 4.90 | 61,692 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,417 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,096 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,769 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,102 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,976 |
| Biggest Cities in History | 0 | - | 4.52 | 90,738 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,259 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,290 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,243 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,613 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,660 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,068 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,665 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,530 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,085 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,749 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,749 |
