| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,634 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,860 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,744 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,937 |
| Countries with Megacities | 0 | - | 4.99 | 257,823 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,805 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,939 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,088 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,950 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,930 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,620 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,441 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,704 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,530 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,356 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,653 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,248 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,344 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,905 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,435 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,857 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,044 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,846 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,711 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,337 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,175 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,422 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,645 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,748 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,204 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,340 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,808 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,791 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,211 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,404 |
| Biggest Cities in the United States | 0 | - | 4.93 | 975,269 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,486 |
| Boundary Waters | 0 | - | 4.92 | 88,368 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,065 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,887 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,139 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,315 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,250 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,086 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,350 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,491 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,185 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,678 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,958 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,136 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,814 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,001 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,949 |
| Largest City by Island | 0 | - | 4.87 | 71,645 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,769 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,635 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,223 |
| Megacities on a World Map | 0 | - | 4.98 | 253,259 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,193 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,660 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,159 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,637 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,043 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,706 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,078 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,057 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,382 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,149 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,424 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,062 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,761 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,877 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,900 |
| Most Populous Islands | 0 | - | 4.80 | 122,768 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,273 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,498 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,764 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,118 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,296 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,405 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,481 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,993 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,606 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,333 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,019 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,651 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,786 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,606 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,877 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,684 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,073 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,785 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,562 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,316,214 |
| Landlocked Countries | 0 | - | 4.99 | 418,637 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 567,436 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,486 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,599 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,409 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,491 |
| Population Trivia | 0 | - | 4.32 | 27,472 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,308 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,381 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,041 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,913 |
| Biggest City by Region | 0 | - | 4.50 | 36,117 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,049 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,785 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,383 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,842 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,477 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,147 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,320 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,158 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,909 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,357 |
| World Capitals Quiz | 0 | - | 5.00 | 5,062,305 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,847 |
| Himalayan Countries | 0 | - | 4.94 | 137,298 |
| Andean Countries | 0 | - | 4.95 | 83,862 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,140 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,543 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,786 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,308 |
| Danube Countries | 0 | - | 4.97 | 71,620 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,508 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,023 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,588 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,659 |
| European Landlocked Countries | 0 | - | 4.99 | 146,737 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,092 |
| Countries with the Most Species | 0 | - | 4.99 | 102,876 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,224 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,422 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,576 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,282 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,962 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,342 |
| Countries in the Alps | 0 | - | 4.87 | 117,638 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,103 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,315 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,389 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,956 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,057 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,425 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,247 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,158 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,946 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,528 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,458 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,324 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,898 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,172 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,184 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,129 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,044 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,555 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,484 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,244 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,155 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,975 |
| Largest Countries By Category | 0 | - | 4.97 | 157,585 |
| Countries by Countries | 0 | - | 4.96 | 62,815 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,163 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,152 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,464 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,422 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,624 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,298 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,755,176 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,349 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,723 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,199 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,385 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,016 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,057 |
| Longest International Borders | 0 | - | 4.99 | 264,615 |
| Countries with Three Borders | 0 | - | 4.96 | 36,446 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,902 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,992 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,003 |
| Demonym of Every Country | 0 | - | 4.91 | 59,125 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,281 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,653 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,332 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,033 |
| Biggest Cities in Europe | 0 | - | 4.72 | 545,265 |
| Biggest Cities in History | 0 | - | 4.52 | 89,992 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 75,514 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,003 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,037 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,101 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,349 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,214 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,548 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,450 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,023 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,382 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,294 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,102 |
