| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,744 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,765 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,098 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,449 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,502 |
| Countries with Megacities | 0 | - | 4.99 | 265,983 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,296 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,768 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,546 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,889 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,576 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,821 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,681 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,288 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,141 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,650 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,462 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,746 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,010 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,421 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,716 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,640 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,822 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,209 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,056 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,562 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,080 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,731 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,470 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,539 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,067 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,193 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,861 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,071 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,290 |
| European Countries by Clue | 0 | - | 4.92 | 184,025 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 101,400 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,837 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,554 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,516 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,969 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,348 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,359 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,161 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,828 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,067 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,452 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,573 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,714 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,380 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,408 |
| Largest City by Island | 0 | - | 4.87 | 72,281 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,319 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,502 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,994 |
| Megacities on a World Map | 0 | - | 4.98 | 256,226 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,889 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,661 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,473 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,798 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,164 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,429 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,565 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,725 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,409 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,090 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,432 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,748 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,604 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,451 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,687 |
| Boundary Waters | 0 | - | 4.92 | 88,687 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,345 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,505 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,091 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,809 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,810 |
| Most Populous Islands | 0 | - | 4.80 | 123,199 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,353 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,608 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,985 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,727 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,368 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,679 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,940 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,741 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,814 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,411 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,406 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,694 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,827 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,898 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,336 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,861 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,013 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,394 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,103 |
| The Only American Country ... | 0 | - | 4.92 | 122,049 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,566 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,260 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,584 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,206 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,824 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,749,555 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,012 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,707 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,959 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,613 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,107 |
| Biggest City by Region | 0 | - | 4.50 | 36,340 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,269 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 31,951 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,238 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,897 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,333 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,456 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,276 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,415 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,472 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,159 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,522 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 102,356 |
| Landlocked Countries | 0 | - | 4.99 | 424,063 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 584,073 |
| Countries by Three Words #3 | 0 | - | 4.80 | 129,471 |
| Countries by Three Words #4 | 0 | - | 4.45 | 101,172 |
| Countries by a Single Clue #1 | 0 | - | 4.75 | 100,931 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 95,277 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,985 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 77,116 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 87,158 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 95,138 |
| Countries by a Single Clue #10 | 0 | - | 4.56 | 67,981 |
| Countries by a Single Clue #11 | 0 | - | 4.61 | 76,699 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 79,139 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,515 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 57,091 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,828 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,241 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,679 |
| Population Trivia | 0 | - | 4.32 | 27,539 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,854 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,818 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,050 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,027 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,284 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,863 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,752 |
| World Capitals Quiz | 0 | - | 5.00 | 5,096,286 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,441 |
| Himalayan Countries | 0 | - | 4.94 | 139,613 |
| Andean Countries | 0 | - | 4.94 | 85,101 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,290 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,521 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,857 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,152 |
| Danube Countries | 0 | - | 4.97 | 72,232 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,349 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,656 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,759 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,257 |
| European Landlocked Countries | 0 | - | 4.99 | 147,406 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,012 |
| Countries with the Most Species | 0 | - | 4.99 | 103,439 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,140 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,691 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,802 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,715 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,445 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,864 |
| Countries in the Alps | 0 | - | 4.87 | 118,512 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,152 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,495 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,825 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,830 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,761 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,106 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,950 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,695 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,317 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,030 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,770 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,638 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,404 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,647 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,739 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,417 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,488 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,356 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,421 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,008 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,720 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,397 |
| Largest Countries By Category | 0 | - | 4.97 | 158,576 |
| Countries by Countries | 0 | - | 4.96 | 63,460 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,033 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,355 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,629 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,350 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,224 |
