| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,075 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,319 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,694 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,864 |
| Countries with Megacities | 0 | - | 4.99 | 248,100 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,740 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,325 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,128 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,273 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,684 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,314 |
| Biggest Cities in the World | 0 | - | 4.91 | 792,442 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,286 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,137 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,513 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,138 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,618 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,932 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,504 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,973 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,114 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,730 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,216 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,062 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,826 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,760 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,872 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,276 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,367 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,896 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,916 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,879 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,700 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,130 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,646 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,457 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,370 |
| Boundary Waters | 0 | - | 4.92 | 88,125 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,895 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,486 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,576 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,992 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,896 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,706 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,557 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,258 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,636 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,179 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,608 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,776 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,470 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,063 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,081 |
| Largest City by Island | 0 | - | 4.87 | 71,240 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,515 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,790 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,696 |
| Megacities on a World Map | 0 | - | 4.98 | 251,713 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,941 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,142 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,205 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,326 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,441 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,747 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,523 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,424 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,787 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,690 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,943 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,397 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,341 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,375 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,488 |
| Most Populous Islands | 0 | - | 4.79 | 122,090 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,225 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,434 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,664 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,941 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,061 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,383 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,322 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,170 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,163 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,924 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,621 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,293 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,250 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,866 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,654 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,876 |
| Megacities on an Empty Map | 0 | - | 4.97 | 113,927 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,468 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,771 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,044,448 |
| Landlocked Countries | 0 | - | 4.99 | 415,211 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 557,412 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,279 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,188 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,225 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 114,759 |
| Population Trivia | 0 | - | 4.32 | 27,437 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,077 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,080 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,947 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,785 |
| Biggest City by Region | 0 | - | 4.50 | 36,036 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,959 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,630 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,213 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,911 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,900 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,066 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,256 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,002 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,135 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,290 |
| World Capitals Quiz | 0 | - | 5.00 | 5,041,862 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,235 |
| Himalayan Countries | 0 | - | 4.95 | 135,921 |
| Andean Countries | 0 | - | 4.94 | 83,142 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,464 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,589 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,168 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,814 |
| Danube Countries | 0 | - | 4.97 | 71,250 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,980 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,699 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,836 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,766 |
| European Landlocked Countries | 0 | - | 4.99 | 145,948 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,496 |
| Countries with the Most Species | 0 | - | 4.99 | 95,332 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,619 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,265 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,436 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,060 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,709 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,064 |
| Countries in the Alps | 0 | - | 4.86 | 117,104 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,738 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,566 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,150 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,570 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,366 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,131 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,777 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,886 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,674 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,199 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,267 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,135 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,603 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,867 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,880 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,426 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,789 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,348 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,006 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,186 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,153 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,716 |
| Largest Countries By Category | 0 | - | 4.97 | 157,000 |
| Countries by Countries | 0 | - | 4.96 | 62,427 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,637 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,019 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,376 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,242 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,262 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,921 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,729,531 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,871 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,547 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,708 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,284 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,859 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,744 |
| Longest International Borders | 0 | - | 4.99 | 264,082 |
| Countries with Three Borders | 0 | - | 4.96 | 36,281 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,693 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,785 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,915 |
| Demonym of Every Country | 0 | - | 4.91 | 58,783 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,229 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,488 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,119 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,621 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,027 |
| Biggest Cities in History | 0 | - | 4.52 | 89,257 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,179 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,521 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,641 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,588 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,242 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,888 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,026 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,805 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,692 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,254 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,124 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,714 |
