| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,816 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,037 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,652 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,246 |
| Countries with Megacities | 0 | - | 4.99 | 262,365 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,078 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,110 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,384 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,163 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,448 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,015 |
| Biggest Cities in the World | 0 | - | 4.91 | 797,737 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,826 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,632 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,595 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,786 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,337 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,457 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,010 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,759 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,301 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,674 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,155 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,417 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,655 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,387 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,719 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 57,003 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,933 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,041 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,527 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,108 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,826 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,240 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,991 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,123 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,856 |
| Boundary Waters | 0 | - | 4.92 | 88,426 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,123 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,003 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,326 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,409 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,335 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,514 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,500 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,548 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,334 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,807 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,077 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,237 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,860 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,351 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,238 |
| Largest City by Island | 0 | - | 4.87 | 71,782 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,875 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,819 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,364 |
| Megacities on a World Map | 0 | - | 4.98 | 254,081 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,291 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,838 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,451 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,221 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,865 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,184 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,141 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,642 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,215 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,494 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,166 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,871 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,022 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,619 |
| Most Populous Islands | 0 | - | 4.80 | 122,866 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,290 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,520 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,788 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,181 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,358 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,697 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,704 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,181 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,744 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,387 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,148 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,844 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,041 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,808 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,961 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,206 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,261 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,892 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,662 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,393,632 |
| Landlocked Countries | 0 | - | 4.99 | 419,693 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 570,069 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,543 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,727 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,472 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,601 |
| Population Trivia | 0 | - | 4.32 | 27,483 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,376 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,487 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,068 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,949 |
| Biggest City by Region | 0 | - | 4.50 | 36,171 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,102 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,862 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,484 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,128 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,652 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,172 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,340 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,216 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,156 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,393 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,437 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,310 |
| Himalayan Countries | 0 | - | 4.95 | 137,748 |
| Andean Countries | 0 | - | 4.95 | 84,090 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,327 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,862 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,960 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,439 |
| Danube Countries | 0 | - | 4.97 | 71,737 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,663 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,137 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,790 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,870 |
| European Landlocked Countries | 0 | - | 4.99 | 146,862 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,236 |
| Countries with the Most Species | 0 | - | 4.99 | 103,001 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,393 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,457 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,618 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,369 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,042 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,438 |
| Countries in the Alps | 0 | - | 4.87 | 117,814 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,215 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,532 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,468 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,274 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,202 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,780 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,370 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,261 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,022 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,625 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,370 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,992 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,259 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,276 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,346 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,116 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,622 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,656 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,725 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,437 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,041 |
| Largest Countries By Category | 0 | - | 4.97 | 157,783 |
| Countries by Countries | 0 | - | 4.96 | 62,923 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,324 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,180 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,486 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,801 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,720 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,409 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,880 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,470 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,771 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,300 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,415 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,325 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,127 |
| Longest International Borders | 0 | - | 4.99 | 264,800 |
| Countries with Three Borders | 0 | - | 4.96 | 36,496 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,957 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,078 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,024 |
| Demonym of Every Country | 0 | - | 4.91 | 59,232 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,296 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,715 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,380 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,490 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,963 |
| Biggest Cities in History | 0 | - | 4.52 | 90,084 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 76,950 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,160 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,169 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,265 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,381 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,324 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,695 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,667 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,133 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,433 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,353 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,233 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,549 |
