| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,004 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,017 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,519 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,194 |
| Countries with Megacities | 0 | - | 4.99 | 267,181 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,877 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,153 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,192 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,260 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,300 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,538 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,694 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,455 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,335 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,064 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,678 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,910 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,222 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,626 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,950 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,974 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,798 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,437 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,486 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,044 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,802 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,263 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,974 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,626 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,735 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,221 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,408 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,428 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,032 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,387 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,675 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,229 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,079 |
| Boundary Waters | 0 | - | 4.92 | 88,770 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,422 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,714 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,359 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,977 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,983 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,139 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,420 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,918 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,367 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,689 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,764 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,902 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,202 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,617 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,683 |
| Largest City by Island | 0 | - | 4.87 | 72,457 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,428 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,706 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,150 |
| Megacities on a World Map | 0 | - | 4.98 | 256,983 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,774 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,690 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,471 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,282 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,693 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,830 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,901 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,535 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,206 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,519 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,863 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,777 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,676 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,942 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,058 |
| Most Populous Islands | 0 | - | 4.80 | 123,340 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,384 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,650 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,982 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,499 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,811 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,486 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,087 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,736 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,884 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,859 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,995 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,574 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,999 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,170 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,430 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,782 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,233 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,521 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,253 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,887,926 |
| Landlocked Countries | 0 | - | 4.99 | 426,001 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 588,802 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,933 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,410 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,769 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,137 |
| Population Trivia | 0 | - | 4.32 | 27,572 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,798 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,118 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,655 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,160 |
| Biggest City by Region | 0 | - | 4.50 | 36,392 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,342 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,320 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,985 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,811 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,739 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,307 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,443 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,560 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,495 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,574 |
| World Capitals Quiz | 0 | - | 5.00 | 5,106,770 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,344 |
| Himalayan Countries | 0 | - | 4.93 | 140,303 |
| Andean Countries | 0 | - | 4.94 | 85,497 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,642 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,044 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,213 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,459 |
| Danube Countries | 0 | - | 4.97 | 72,417 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,610 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,853 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,154 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,638 |
| European Landlocked Countries | 0 | - | 4.99 | 147,618 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,321 |
| Countries with the Most Species | 0 | - | 4.99 | 103,573 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,429 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,781 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,890 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,849 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,588 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,028 |
| Countries in the Alps | 0 | - | 4.87 | 118,795 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,668 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,895 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,971 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,036 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,972 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,273 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,420 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,873 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,435 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,190 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,889 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,752 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,568 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,810 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,903 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,877 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,626 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 73,699 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,682 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,770 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,187 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,518 |
| Largest Countries By Category | 0 | - | 4.97 | 158,883 |
| Countries by Countries | 0 | - | 4.96 | 63,657 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,282 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,403 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,675 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,025 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,441 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,115 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,128 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,463 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,988 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,808 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,618 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,125 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,578 |
| Longest International Borders | 0 | - | 4.99 | 265,828 |
| Countries with Three Borders | 0 | - | 4.96 | 36,779 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,358 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,498 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,181 |
| Demonym of Every Country | 0 | - | 4.90 | 61,491 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,395 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,022 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,681 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,873 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,198 |
| Biggest Cities in History | 0 | - | 4.52 | 90,610 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,028 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,088 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,051 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,333 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,612 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,675 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,461 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,219 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,925 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,704 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,670 |
