| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,251 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,286 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,177 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,702 |
| Countries with Megacities | 0 | - | 4.99 | 268,261 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,336 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,433 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,684 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,556 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,457,056 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,268 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,682 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,642 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,529 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,650 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,908 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,283 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,446 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,779 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,180 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,330 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,034 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 228,059 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,788 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,872 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,033 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,456 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,169 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,774 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,912 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,364 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,622 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,885 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,080 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,430 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,467 |
| Biggest Cities in the United States | 0 | - | 4.94 | 990,038 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,705 |
| Boundary Waters | 0 | - | 4.92 | 88,877 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,493 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,920 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,656 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,117 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,129 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,881 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,753 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 96,007 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,665 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,943 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,965 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,127 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,300 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,865 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,954 |
| Largest City by Island | 0 | - | 4.87 | 72,628 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,539 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,947 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,309 |
| Megacities on a World Map | 0 | - | 4.98 | 257,704 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,893 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,896 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,952 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,942 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,140 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,085 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,655 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,336 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,598 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,966 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,929 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,909 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,493 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,637 |
| Most Populous Islands | 0 | - | 4.80 | 123,492 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,414 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,693 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,045 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,568 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,962 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,346 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,072 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,592 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,442 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,169 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,017 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,203 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,777 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,424 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,466 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,512 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,689 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,431 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,667 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,434 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,018,274 |
| Landlocked Countries | 0 | - | 4.99 | 427,851 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 593,606 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,029 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,590 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,842 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,299 |
| Population Trivia | 0 | - | 4.32 | 27,601 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,907 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,250 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,696 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,195 |
| Biggest City by Region | 0 | - | 4.50 | 36,433 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,395 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,394 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,056 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,251 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 138,018 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,338 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,472 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,644 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,824 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,618 |
| World Capitals Quiz | 0 | - | 5.00 | 5,118,079 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,197 |
| Himalayan Countries | 0 | - | 4.93 | 141,076 |
| Andean Countries | 0 | - | 4.94 | 85,933 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,034 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,677 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,583 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,781 |
| Danube Countries | 0 | - | 4.97 | 72,626 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,895 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,034 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,564 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 151,044 |
| European Landlocked Countries | 0 | - | 4.99 | 147,839 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,631 |
| Countries with the Most Species | 0 | - | 4.99 | 103,682 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,738 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,839 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,982 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,970 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,721 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,189 |
| Countries in the Alps | 0 | - | 4.87 | 119,073 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,163 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,278 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,101 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,235 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,207 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,437 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,655 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,048 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,549 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,361 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,987 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,858 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,722 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,975 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,073 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,300 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,773 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,862 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,930 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,626 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,715 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,652 |
| Largest Countries By Category | 0 | - | 4.97 | 159,214 |
| Countries by Countries | 0 | - | 4.97 | 63,869 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,552 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,465 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,725 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,678 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,614 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,308 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,816,666 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,653 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,036 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,938 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,675 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,583 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,703 |
| Longest International Borders | 0 | - | 4.99 | 266,106 |
| Countries with Three Borders | 0 | - | 4.96 | 36,866 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,460 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,598 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,221 |
| Demonym of Every Country | 0 | - | 4.90 | 61,712 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,420 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,104 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,779 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,131 |
| Biggest Cities in Europe | 0 | - | 4.70 | 550,059 |
| Biggest Cities in History | 0 | - | 4.52 | 90,750 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,275 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,310 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,255 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,649 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,664 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,092 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,679 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,548 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,106 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,758 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,758 |
