| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,742 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,762 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,435 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,496 |
| Countries with Megacities | 0 | - | 4.99 | 265,979 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,290 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,767 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,539 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,887 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,569 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,818 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,677 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,287 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,141 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,649 |
| 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 | 59,420 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,716 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,636 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,821 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,208 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,054 |
| 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 | 70,538 |
| 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 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,969 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,348 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,834 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,539 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,513 |
| 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 | 63,090 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,809 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,810 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,359 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,160 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,826 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,066 |
| 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 | 90,713 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,098 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,380 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,407 |
| Largest City by Island | 0 | - | 4.87 | 72,280 |
| 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 | 256,223 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,660 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,471 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,797 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,164 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,426 |
| 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 | 73,747 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,604 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,450 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,684 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,885 |
| 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 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,940 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,411 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,694 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,981 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,726 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,368 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,678 |
| 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 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,406 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,826 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,897 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,336 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,858 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,012 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,394 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,103 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,749,208 |
| Landlocked Countries | 0 | - | 4.99 | 424,060 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 584,061 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,828 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,239 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,678 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,012 |
| Population Trivia | 0 | - | 4.32 | 27,539 |
| 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 | 102,612 |
| 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 | 31,940 |
| 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 | 225,332 |
| 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 | 83,471 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,157 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,522 |
| World Capitals Quiz | 0 | - | 5.00 | 5,096,262 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,439 |
| Himalayan Countries | 0 | - | 4.94 | 139,612 |
| Andean Countries | 0 | - | 4.94 | 85,100 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,289 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,519 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,857 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,152 |
| Danube Countries | 0 | - | 4.97 | 72,231 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,349 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,655 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,759 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,255 |
| European Landlocked Countries | 0 | - | 4.99 | 147,406 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,012 |
| Countries with the Most Species | 0 | - | 4.99 | 103,438 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,138 |
| 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 | 59,714 |
| 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 | 102,150 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,494 |
| 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 | 100,949 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,695 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,316 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,029 |
| 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 | 79,646 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,739 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,415 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,486 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,352 |
| 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 | 245,007 |
| 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 | 63,459 |
| 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 | 110,348 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,222 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,929 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,793,472 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,291 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,936 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,680 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,579 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,627 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,451 |
| Longest International Borders | 0 | - | 4.99 | 265,554 |
| Countries with Three Borders | 0 | - | 4.96 | 36,699 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,267 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,395 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,126 |
| Demonym of Every Country | 0 | - | 4.90 | 61,201 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,356 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,948 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,599 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,554 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,335 |
| Biggest Cities in History | 0 | - | 4.52 | 90,459 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,740 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,854 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,817 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,049 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,550 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,026 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,283 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,862 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,752 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,632 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,600 |
