| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,012 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,026 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,589 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,215 |
| Countries with Megacities | 0 | - | 4.99 | 267,216 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,892 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,164 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,211 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,276 |
| Subdivisions by Country | 0 | - | 4.87 | 50,623 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,402 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,557 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,778 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,460 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,339 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,128 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,684 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,917 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,231 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,633 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,955 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,989 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,815 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,466 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,493 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,072 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,809 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,269 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,981 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,636 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,741 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,229 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,414 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,461 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,032 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,389 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,702 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,320 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,102 |
| Boundary Waters | 0 | - | 4.92 | 88,776 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,424 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,715 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,364 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,984 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,166 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,426 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,921 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,372 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,696 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,770 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,905 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,202 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,623 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,691 |
| Largest City by Island | 0 | - | 4.87 | 72,461 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,430 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,713 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,154 |
| Megacities on a World Map | 0 | - | 4.98 | 257,012 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,778 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,698 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,491 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,700 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,841 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,910 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,543 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,207 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,521 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,866 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,778 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,684 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,949 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,248 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,568 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,403 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,920 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,619 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,685 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,411 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,094 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,333 |
| Most Populous Islands | 0 | - | 4.80 | 123,349 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,385 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,654 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,984 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,501 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,820 |
| Regions of New Zealand | 0 | - | 4.84 | 28,747 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.95 | 27,727 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,537 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,130 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,830 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,902 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,880 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,000 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,577 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,006 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,179 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,440 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,818 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,238 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,524 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,258 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,892,069 |
| Landlocked Countries | 0 | - | 4.99 | 426,049 |
| States of India | 0 | - | 4.94 | 195,943 |
| Japanese Prefectures | 0 | - | 4.99 | 139,061 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,776 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,545 |
| Provinces of Turkey | 0 | - | 4.95 | 205,959 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,099 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,934 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,415 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,771 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,141 |
| Population Trivia | 0 | - | 4.32 | 27,572 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,800 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,121 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,655 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,161 |
| Biggest City by Region | 0 | - | 4.50 | 36,394 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,343 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,320 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,986 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,821 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,750 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,308 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,444 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,562 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,509 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,574 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,190 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,368 |
| Himalayan Countries | 0 | - | 4.93 | 140,327 |
| Andean Countries | 0 | - | 4.94 | 85,511 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,653 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,064 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,231 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,462 |
| Danube Countries | 0 | - | 4.97 | 72,426 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,623 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,858 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,162 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,647 |
| European Landlocked Countries | 0 | - | 4.99 | 147,623 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,333 |
| Countries with the Most Species | 0 | - | 4.99 | 103,578 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,431 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,782 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,892 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,850 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,589 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,033 |
| Countries in the Alps | 0 | - | 4.87 | 118,806 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,681 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,905 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,975 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,038 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,980 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,276 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,430 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,882 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,437 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,196 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,891 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,754 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,573 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,815 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,906 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,891 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,631 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 73,995 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,703 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,792 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,204 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,526 |
| Largest Countries By Category | 0 | - | 4.97 | 158,890 |
| Countries by Countries | 0 | - | 4.96 | 63,662 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,284 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,407 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,677 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,043 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,444 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,121 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,503 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,471 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,988 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,812 |
| States of Mexico | 0 | - | 4.96 | 178,324 |
| States of Brazil | 0 | - | 4.97 | 89,739 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,620 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,880 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,136 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,583 |
| Longest International Borders | 0 | - | 4.99 | 265,836 |
| Countries with Three Borders | 0 | - | 4.96 | 36,780 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,362 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,501 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,184 |
| Demonym of Every Country | 0 | - | 4.90 | 61,499 |
