| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,905 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,932 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,971 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,000 |
| Countries with Megacities | 0 | - | 4.99 | 266,821 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,711 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,028 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,026 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,151 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,317 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,289 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,021 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,394 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,278 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,932 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,607 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,861 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,169 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,556 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,884 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,864 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,230 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,387 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,742 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,720 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,200 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,907 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,578 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,654 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,169 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,346 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,197 |
| 5 Most Populous Cities in Each Country With a Map | 0 | - | 4.96 | 39,972 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,005 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,376 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,401 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,304 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,879 |
| Boundary Waters | 0 | - | 4.92 | 88,743 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,394 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,643 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,266 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,918 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,916 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,775 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,332 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,882 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,272 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,602 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,708 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,838 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,173 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,514 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,572 |
| Largest City by Island | 0 | - | 4.87 | 72,404 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,394 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,633 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,100 |
| Megacities on a World Map | 0 | - | 4.98 | 256,713 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,737 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,609 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,126 |
| 500 Biggest Cities in the World on a Map | 0 | - | 4.97 | 123,843 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,236 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,596 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,741 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,837 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,490 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,162 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,491 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,841 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,725 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,595 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,854 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,655 |
| Most Populous Islands | 0 | - | 4.80 | 123,279 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,377 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,639 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,969 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,462 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,773 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,298 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,930 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,617 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,815 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,808 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,938 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,515 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,942 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,066 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,396 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,441 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,127 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,480 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,201 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,837,616 |
| Landlocked Countries | 0 | - | 4.99 | 425,119 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 586,736 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,895 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,360 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,739 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,097 |
| Population Trivia | 0 | - | 4.32 | 27,557 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,768 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,055 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,642 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,139 |
| Biggest City by Region | 0 | - | 4.50 | 36,384 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,321 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,646 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,288 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,954 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,622 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,640 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,300 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,434 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,533 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,370 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,560 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 102,697 |
| All 50k+ Cities in Europe with a Map | 0 | - | 4.95 | 35,464 |
| World Capitals Quiz | 0 | - | 5.00 | 5,102,919 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,945 |
| Himalayan Countries | 0 | - | 4.93 | 139,994 |
| Andean Countries | 0 | - | 4.94 | 85,302 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,463 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,814 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,032 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,323 |
| Danube Countries | 0 | - | 4.97 | 72,317 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,484 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,760 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,985 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,481 |
| European Landlocked Countries | 0 | - | 4.99 | 147,535 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,196 |
| Countries with the Most Species | 0 | - | 4.99 | 103,520 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,325 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,744 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,854 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,790 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,524 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,959 |
| Countries in the Alps | 0 | - | 4.87 | 118,687 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,489 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,746 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,920 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,966 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,883 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,191 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,322 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,811 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,375 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,124 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,821 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,696 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,504 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,736 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,832 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,691 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,563 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,697 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,597 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,468 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,002 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,475 |
| Largest Countries By Category | 0 | - | 4.97 | 158,772 |
| Countries by Countries | 0 | - | 4.96 | 63,581 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,187 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,380 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,653 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,814 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,370 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,042 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,800,761 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,417 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,968 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,755 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,607 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,146 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,954 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,529 |
| Longest International Borders | 0 | - | 4.99 | 265,749 |
| Countries with Three Borders | 0 | - | 4.96 | 36,748 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,329 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,470 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,168 |
| Demonym of Every Country | 0 | - | 4.90 | 61,409 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,385 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,992 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,650 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,768 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,908 |
| Biggest Cities in History | 0 | - | 4.52 | 90,554 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,926 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,012 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,969 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,223 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,600 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,449 |
