| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,987 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,015 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,668 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,934 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,454 |
| Island Countries | 0 | - | 4.99 | 712,593 |
| Most Populous Islands | 0 | - | 4.80 | 123,334 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,384 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,650 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,174 |
| Countries with Megacities | 0 | - | 4.99 | 267,147 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,865 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,137 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,175 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,250 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,679 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,178 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,057 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,863 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,537 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,221 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,521 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,631 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,449 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,331 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,052 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,669 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,906 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,220 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,617 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,940 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,965 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,782 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,421 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,470 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,010 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,793 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,255 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,968 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,622 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,730 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,216 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,403 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,388 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,265 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,653 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,125 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,052 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,031 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,387 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,103 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,412 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,915 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,362 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,683 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,759 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,898 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,200 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,607 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,675 |
| Largest City by Island | 0 | - | 4.87 | 72,455 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,425 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,703 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,144 |
| Megacities on a World Map | 0 | - | 4.98 | 256,959 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,022 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,771 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,672 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,446 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,671 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,822 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,899 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,531 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,202 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,518 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,862 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,776 |
| Boundary Waters | 0 | - | 4.92 | 88,767 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,412 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,704 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,353 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,971 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,976 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,463 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,071 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,724 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,877 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,982 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,853 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,987 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,495 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,571 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,808 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,994 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,160 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,424 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,746 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,223 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,517 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,249 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,202 |
| Name a Valid Island Country | 0 | - | 4.97 | 130,081 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,883,912 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,135 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,798 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,111 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,653 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,158 |
| Biggest City by Region | 0 | - | 4.50 | 36,392 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,339 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,317 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,981 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,789 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,733 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,307 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,442 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,557 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,478 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,572 |
| Landlocked Countries | 0 | - | 4.99 | 425,932 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 588,553 |
| Islands by Wikipedia Descriptions | 0 | - | 4.54 | 37,512 |
| Name a Valid Island | 0 | - | 4.80 | 69,539 |
| Island Superlatives | 0 | - | 4.57 | 34,717 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,929 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,405 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,766 |
| Population Trivia | 0 | - | 4.32 | 27,571 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,073 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,040 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,328 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,643 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,453 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,208 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,919 |
| World Capitals Quiz | 0 | - | 5.00 | 5,106,439 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,305 |
| Himalayan Countries | 0 | - | 4.93 | 140,271 |
| Andean Countries | 0 | - | 4.94 | 85,483 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,627 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,024 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,194 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,451 |
| Danube Countries | 0 | - | 4.97 | 72,401 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,604 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,850 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,142 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,627 |
| European Landlocked Countries | 0 | - | 4.99 | 147,611 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,314 |
| Countries with the Most Species | 0 | - | 4.99 | 103,570 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,425 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,777 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,889 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,841 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,583 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,021 |
| Countries in the Alps | 0 | - | 4.87 | 118,783 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,644 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,877 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,969 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,032 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,967 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,265 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,415 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,871 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,429 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,183 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,880 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,749 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,565 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,803 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,899 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,865 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,621 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 72,522 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,679 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,744 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,169 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,510 |
| Largest Countries By Category | 0 | - | 4.97 | 158,877 |
| Countries by Countries | 0 | - | 4.96 | 63,647 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,273 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,401 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,673 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,003 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,437 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,109 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,804,814 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,460 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,987 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,804 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,617 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,101 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,576 |
| Longest International Borders | 0 | - | 4.99 | 265,817 |
| Countries with Three Borders | 0 | - | 4.96 | 36,775 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,353 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,496 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,179 |
