| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,331 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,602 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,274 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,421 |
| Countries with Megacities | 0 | - | 4.99 | 249,239 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,281 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,624 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,590 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,603 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,472 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,994 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,475 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,460 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,327 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,986 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,386 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,118 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,128 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,680 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,218 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,491 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,440 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,535 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 131,931 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,097 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,988 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,175 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,484 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,539 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,066 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,137 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,361 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,741 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,175 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,561 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,591 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,965 |
| Boundary Waters | 0 | - | 4.92 | 88,261 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,988 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,686 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,873 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,162 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,075 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,442 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,989 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,362 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,921 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,443 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,784 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,941 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,652 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,613 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,557 |
| Largest City by Island | 0 | - | 4.87 | 71,451 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,627 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,041 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,021 |
| Megacities on a World Map | 0 | - | 4.98 | 252,465 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,053 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,425 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,726 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,492 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,809 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,083 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,844 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,796 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 89,457 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,953 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,209 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,778 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,556 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,642 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,719 |
| Most Populous Islands | 0 | - | 4.80 | 122,629 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,252 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,469 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,712 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,036 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,198 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,866 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,698 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,538 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,393 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,053 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,843 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,486 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,471 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,221 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,764 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,790 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,580 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,611 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,355 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,191,710 |
| Landlocked Countries | 0 | - | 4.99 | 417,010 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 562,858 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,398 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,399 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,337 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,311 |
| Population Trivia | 0 | - | 4.32 | 27,456 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,199 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,243 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,002 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,861 |
| Biggest City by Region | 0 | - | 4.50 | 36,078 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,012 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,713 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,303 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,315 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,191 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,115 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,293 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,096 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,473 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,326 |
| World Capitals Quiz | 0 | - | 5.00 | 5,052,660 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,098 |
| Himalayan Countries | 0 | - | 4.95 | 136,657 |
| Andean Countries | 0 | - | 4.95 | 83,562 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,817 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,104 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,484 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,079 |
| Danube Countries | 0 | - | 4.97 | 71,466 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,278 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,879 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,232 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,228 |
| European Landlocked Countries | 0 | - | 4.99 | 146,164 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,826 |
| Countries with the Most Species | 0 | - | 4.99 | 102,207 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,955 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,347 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,527 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,188 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,836 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,215 |
| Countries in the Alps | 0 | - | 4.86 | 117,387 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,934 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,986 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,279 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,778 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,868 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,290 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,033 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,017 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,841 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,380 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,383 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,221 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,759 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,028 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,033 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,787 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,919 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,452 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,281 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,209 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,669 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,849 |
| Largest Countries By Category | 0 | - | 4.97 | 157,320 |
| Countries by Countries | 0 | - | 4.96 | 62,631 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,921 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,091 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,414 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,869 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,433 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,126 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,743,238 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,132 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,665 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,980 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,331 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,395 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,895 |
| Longest International Borders | 0 | - | 4.99 | 264,363 |
| Countries with Three Borders | 0 | - | 4.96 | 36,364 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,798 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,894 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,963 |
| Demonym of Every Country | 0 | - | 4.91 | 58,956 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,255 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,580 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,243 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,855 |
| Biggest Cities in Europe | 0 | - | 4.72 | 543,920 |
| Biggest Cities in History | 0 | - | 4.52 | 89,842 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,230 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,769 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,843 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,835 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,296 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,061 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,327 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,162 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,879 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,322 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,207 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,886 |
