| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,354 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,359 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,255 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,789 |
| Countries with Megacities | 0 | - | 4.99 | 264,331 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,646 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,414 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,912 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,481 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,554 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,828 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,395 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,014 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,861 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,101 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,083 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,521 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,685 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,185 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,212 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,933 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,685 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,640 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,568 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,053 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,709 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,180 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,087 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,230 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,767 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,833 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,941 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,899 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,285 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,460 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,318 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,611 |
| Boundary Waters | 0 | - | 4.92 | 88,539 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,227 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,219 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,644 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,562 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,527 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,287 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,808 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,682 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,660 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,090 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,283 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,451 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,953 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,981 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,869 |
| Largest City by Island | 0 | - | 4.87 | 72,011 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,118 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,131 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,692 |
| Megacities on a World Map | 0 | - | 4.98 | 255,140 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,471 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,113 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,032 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,931 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,613 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,163 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,447 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,280 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,869 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,312 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,617 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,379 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,127 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,285 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,090 |
| Most Populous Islands | 0 | - | 4.80 | 123,004 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,319 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,555 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,863 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,283 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,500 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,216 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,129 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,570 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,288 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,544 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,463 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,095 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,462 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,250 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,182 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,444 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,624 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,141 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,879 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,552,856 |
| Landlocked Countries | 0 | - | 4.99 | 421,592 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 575,769 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,688 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,983 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,566 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,806 |
| Population Trivia | 0 | - | 4.32 | 27,508 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,549 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,695 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,555 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,028 |
| Biggest City by Region | 0 | - | 4.50 | 36,269 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,180 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,978 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,605 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,679 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,020 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,219 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,371 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,340 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,609 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,449 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,711 |
| World Capitals Quiz | 0 | - | 5.00 | 5,081,086 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,251 |
| Himalayan Countries | 0 | - | 4.95 | 138,545 |
| Andean Countries | 0 | - | 4.93 | 84,507 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,694 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,687 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,327 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,727 |
| Danube Countries | 0 | - | 4.97 | 71,957 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,957 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,378 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,219 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,691 |
| European Landlocked Countries | 0 | - | 4.99 | 147,084 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,557 |
| Countries with the Most Species | 0 | - | 4.99 | 103,194 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,692 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,559 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,702 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,509 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,192 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,614 |
| Countries in the Alps | 0 | - | 4.87 | 118,144 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,842 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,968 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,617 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,560 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,448 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,918 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,623 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,455 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,154 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,808 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,630 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,492 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,183 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,431 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,484 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,802 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,275 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,097 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,995 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,737 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,983 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,188 |
| Largest Countries By Category | 0 | - | 4.97 | 158,141 |
| Countries by Countries | 0 | - | 4.96 | 63,150 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,633 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,268 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,554 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,466 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,951 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,639 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,775,909 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,679 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,846 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,473 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,479 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,899 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,266 |
| Longest International Borders | 0 | - | 4.99 | 265,133 |
| Countries with Three Borders | 0 | - | 4.96 | 36,589 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,101 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,194 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,057 |
| Demonym of Every Country | 0 | - | 4.91 | 60,588 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,327 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,821 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,480 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,063 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,974 |
| Biggest Cities in History | 0 | - | 4.52 | 90,256 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 77,907 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,485 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,476 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,648 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,467 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,756 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,984 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,359 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,428 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,517 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,463 |
