| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,568 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,801 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,351 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,779 |
| Countries with Megacities | 0 | - | 4.99 | 249,980 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,632 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,854 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,938 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,830 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,387 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,489 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,018 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,637 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,473 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,260 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,592 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,221 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,293 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,848 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,387 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,764 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,901 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,779 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,531 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,273 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,119 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,353 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,595 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,707 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,163 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,294 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,712 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,780 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,199 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,159 |
| Biggest Cities in the United States | 0 | - | 4.93 | 974,752 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,345 |
| Boundary Waters | 0 | - | 4.92 | 88,349 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,054 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,858 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,083 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,297 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,221 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,924 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,293 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,460 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,122 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,630 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,910 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,103 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,786 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,950 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,876 |
| Largest City by Island | 0 | - | 4.87 | 71,597 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,727 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,577 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,175 |
| Megacities on a World Map | 0 | - | 4.98 | 252,983 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,160 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,613 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,052 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,602 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,997 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,657 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,037 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,028 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,234 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,125 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,397 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,023 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,716 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,821 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,579 |
| Most Populous Islands | 0 | - | 4.80 | 122,744 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,267 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,488 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,745 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.64 | 64,101 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,275 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,287 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,381 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,917 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,551 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,133 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,986 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,617 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,621 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,519 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,845 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,464 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,992 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,738 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,541 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,288,831 |
| Landlocked Countries | 0 | - | 4.99 | 418,245 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 566,346 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,474 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,562 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,388 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,458 |
| Population Trivia | 0 | - | 4.32 | 27,470 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,289 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,354 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,036 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,903 |
| Biggest City by Region | 0 | - | 4.50 | 36,108 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,041 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,766 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,365 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,724 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,418 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,140 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,314 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,145 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,808 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,348 |
| World Capitals Quiz | 0 | - | 5.00 | 5,060,021 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,637 |
| Himalayan Countries | 0 | - | 4.94 | 137,120 |
| Andean Countries | 0 | - | 4.95 | 83,778 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,021 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,400 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,698 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,257 |
| Danube Countries | 0 | - | 4.97 | 71,583 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,449 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,986 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,523 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,580 |
| European Landlocked Countries | 0 | - | 4.99 | 146,696 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,024 |
| Countries with the Most Species | 0 | - | 4.99 | 102,816 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,161 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,400 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,558 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,261 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,932 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,310 |
| Countries in the Alps | 0 | - | 4.87 | 117,586 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,065 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,245 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,370 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,913 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,021 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,398 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,189 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,131 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,929 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,494 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,443 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,302 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,875 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,138 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,161 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,041 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,013 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,537 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,428 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,992 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,071 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,946 |
| Largest Countries By Category | 0 | - | 4.97 | 157,538 |
| Countries by Countries | 0 | - | 4.96 | 62,779 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,122 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,138 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,455 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,293 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.97 | 98,584 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,263 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,752,854 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,313 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,713 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,178 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,377 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,927 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,027 |
| Longest International Borders | 0 | - | 4.99 | 264,557 |
| Countries with Three Borders | 0 | - | 4.96 | 36,423 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,878 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,971 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,990 |
| Demonym of Every Country | 0 | - | 4.91 | 59,096 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,275 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,640 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,319 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 151,993 |
| Biggest Cities in Europe | 0 | - | 4.72 | 545,046 |
| Biggest Cities in History | 0 | - | 4.52 | 89,966 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 73,669 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,946 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,992 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,041 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,338 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,175 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,498 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,377 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,995 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,367 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,272 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,068 |
