| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,732 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,752 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,390 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,481 |
| Countries with Megacities | 0 | - | 4.99 | 265,943 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,276 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,764 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,532 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,877 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,477 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,796 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,607 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,278 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,137 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,638 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,450 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,741 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,999 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,412 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,702 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,606 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,793 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,197 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,012 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,546 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,071 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,720 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,467 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,529 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,058 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,187 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,858 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,968 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,348 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,807 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,466 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,492 |
| Boundary Waters | 0 | - | 4.92 | 88,685 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,344 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,500 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,078 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,806 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,807 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,340 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,150 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,821 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,056 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,445 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,565 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,706 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,097 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,370 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,397 |
| Largest City by Island | 0 | - | 4.87 | 72,271 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,316 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,496 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,986 |
| Megacities on a World Map | 0 | - | 4.98 | 256,199 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,656 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,464 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,775 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,162 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,415 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,557 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,717 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,406 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,082 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,428 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,743 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,598 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,447 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,675 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,839 |
| Most Populous Islands | 0 | - | 4.80 | 123,194 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,352 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,608 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,934 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,409 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,687 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,968 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,716 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,355 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,674 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,739 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,806 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,395 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,820 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,890 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,332 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,835 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,007 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,389 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,095 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,745,215 |
| Landlocked Countries | 0 | - | 4.99 | 423,998 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 583,891 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,826 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,233 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,677 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,010 |
| Population Trivia | 0 | - | 4.32 | 27,536 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,705 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,954 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,611 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,104 |
| Biggest City by Region | 0 | - | 4.50 | 36,338 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,265 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,236 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,893 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,317 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,450 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,275 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,415 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,469 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,146 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,521 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 102,340 |
| World Capitals Quiz | 0 | - | 5.00 | 5,095,878 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,418 |
| Himalayan Countries | 0 | - | 4.94 | 139,586 |
| Andean Countries | 0 | - | 4.94 | 85,087 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,280 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,503 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,844 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,141 |
| Danube Countries | 0 | - | 4.97 | 72,224 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,336 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,650 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,743 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,248 |
| European Landlocked Countries | 0 | - | 4.99 | 147,399 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,007 |
| Countries with the Most Species | 0 | - | 4.99 | 103,434 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,130 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,690 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,800 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,711 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,443 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,858 |
| Countries in the Alps | 0 | - | 4.87 | 118,508 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,127 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,487 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,822 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,822 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,756 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,104 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,942 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,687 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,311 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,028 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,770 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,634 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,400 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,642 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,734 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,401 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,482 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,326 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,383 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,982 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,706 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,393 |
| Largest Countries By Category | 0 | - | 4.97 | 158,567 |
| Countries by Countries | 0 | - | 4.96 | 63,454 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,029 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,351 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,628 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,330 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,218 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,924 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,793,149 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,280 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,932 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,669 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,578 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,610 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,448 |
| Longest International Borders | 0 | - | 4.99 | 265,546 |
| Countries with Three Borders | 0 | - | 4.96 | 36,697 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,262 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,382 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,124 |
| Demonym of Every Country | 0 | - | 4.90 | 61,188 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,356 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,945 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,595 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,548 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,300 |
| Biggest Cities in History | 0 | - | 4.52 | 90,455 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,721 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,840 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,814 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,042 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,550 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,006 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,277 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,849 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,742 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,631 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,596 |
