| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,953 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,182 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,301 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,468 |
| Countries with Megacities | 0 | - | 4.99 | 263,438 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,305 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,253 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,605 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,288 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,745 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,353 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,877 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,894 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,722 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,813 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,911 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,394 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,541 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,087 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,954 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,562 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,076 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,363 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,884 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,828 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,530 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,916 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,690 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,053 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,508 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,643 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,353 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,861 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,254 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,665 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,451 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,186 |
| Boundary Waters | 0 | - | 4.92 | 88,468 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,170 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,094 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,454 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,463 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,415 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,809 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,634 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,609 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,446 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,898 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,158 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,316 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,890 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,551 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,405 |
| Largest City by Island | 0 | - | 4.87 | 71,872 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,991 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,960 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,529 |
| Megacities on a World Map | 0 | - | 4.98 | 254,550 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,347 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,937 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,677 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,815 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,374 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,000 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,290 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,198 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,753 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,252 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,543 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,252 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,971 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,127 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,220 |
| Most Populous Islands | 0 | - | 4.80 | 122,932 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,302 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,534 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,817 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,224 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,418 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,904 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,860 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,337 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,838 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,435 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,283 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,952 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,244 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,006 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,090 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,709 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,419 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,984 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,743 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,461,104 |
| Landlocked Countries | 0 | - | 4.99 | 420,547 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 572,304 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,609 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,837 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,512 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,690 |
| Population Trivia | 0 | - | 4.32 | 27,495 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,439 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,574 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,087 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,985 |
| Biggest City by Region | 0 | - | 4.50 | 36,225 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,141 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,908 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,531 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,374 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,809 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,187 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,351 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,261 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,353 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,417 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,419 |
| World Capitals Quiz | 0 | - | 5.00 | 5,073,943 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,715 |
| Himalayan Countries | 0 | - | 4.95 | 138,089 |
| Andean Countries | 0 | - | 4.95 | 84,269 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,488 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,335 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,121 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,565 |
| Danube Countries | 0 | - | 4.97 | 71,835 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,796 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,236 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,976 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,425 |
| European Landlocked Countries | 0 | - | 4.99 | 146,966 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,378 |
| Countries with the Most Species | 0 | - | 4.99 | 103,092 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,532 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,507 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,659 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,444 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,116 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,505 |
| Countries in the Alps | 0 | - | 4.87 | 117,961 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,480 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,710 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,549 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,454 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,306 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,832 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,471 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,341 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,077 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,704 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,568 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,421 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,071 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,349 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,366 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,543 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,181 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,691 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,823 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,182 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,668 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,110 |
| Largest Countries By Category | 0 | - | 4.97 | 157,930 |
| Countries by Countries | 0 | - | 4.97 | 63,013 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,468 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,218 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,511 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,086 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,806 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,511 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,727 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,558 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,795 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,357 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,443 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,596 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,189 |
| Longest International Borders | 0 | - | 4.99 | 264,945 |
| Countries with Three Borders | 0 | - | 4.96 | 36,534 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,014 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,133 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,040 |
| Demonym of Every Country | 0 | - | 4.91 | 60,161 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,315 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,762 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,423 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,590 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,374 |
| Biggest Cities in History | 0 | - | 4.52 | 90,155 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,476 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,310 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,303 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,425 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,407 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.88 | 81,337 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,805 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,857 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 62,250 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,466 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,391 |
