| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,670 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,901 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,983 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,018 |
| Countries with Megacities | 0 | - | 4.99 | 259,851 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,890 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,990 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,168 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,998 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,246 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,733 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,725 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,733 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,553 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,426 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,683 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,268 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,370 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,931 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,487 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,928 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,161 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,909 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,858 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,392 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,215 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,477 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,676 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,783 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 60,036 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,379 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,870 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,802 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,216 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,511 |
| Biggest Cities in the United States | 0 | - | 4.94 | 975,703 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,552 |
| Boundary Waters | 0 | - | 4.92 | 88,378 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,080 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,912 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,169 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,337 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,274 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,191 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,397 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,502 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,225 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,710 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,976 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,163 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,827 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,042 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,012 |
| Largest City by Island | 0 | - | 4.87 | 71,682 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,789 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,676 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,252 |
| Megacities on a World Map | 0 | - | 4.98 | 253,414 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,212 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,713 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,233 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,656 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,088 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,742 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,105 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,084 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,465 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,156 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,439 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,083 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,788 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,909 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,058 |
| Most Populous Islands | 0 | - | 4.80 | 122,794 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,277 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,507 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,769 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,140 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,312 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,460 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,529 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,038 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,650 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,350 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,050 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,688 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,903 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,653 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,897 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,789 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,113 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,815 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,591 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,333,262 |
| Landlocked Countries | 0 | - | 4.99 | 418,925 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 567,980 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,499 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,622 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,421 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,519 |
| Population Trivia | 0 | - | 4.32 | 27,472 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,323 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,401 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,047 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,923 |
| Biggest City by Region | 0 | - | 4.50 | 36,121 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,054 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,797 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,401 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,907 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,526 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,152 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,328 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,167 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,989 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,367 |
| World Capitals Quiz | 0 | - | 5.00 | 5,063,652 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,991 |
| Himalayan Countries | 0 | - | 4.94 | 137,420 |
| Andean Countries | 0 | - | 4.95 | 83,936 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,229 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,652 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,832 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,350 |
| Danube Countries | 0 | - | 4.97 | 71,663 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,549 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,057 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,652 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,732 |
| European Landlocked Countries | 0 | - | 4.99 | 146,778 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,139 |
| Countries with the Most Species | 0 | - | 4.99 | 102,907 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,264 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,432 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,587 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,302 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,992 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,363 |
| Countries in the Alps | 0 | - | 4.87 | 117,685 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,133 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,362 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,420 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,979 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,092 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,564 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,285 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,185 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,969 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,550 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,478 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,337 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,924 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,187 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,205 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,182 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,062 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,571 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,529 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,368 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,228 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,998 |
| Largest Countries By Category | 0 | - | 4.97 | 157,635 |
| Countries by Countries | 0 | - | 4.96 | 62,837 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,209 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,160 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,467 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,521 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,652 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,321 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,756,811 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,377 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,735 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,221 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,390 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,068 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,071 |
| Longest International Borders | 0 | - | 4.99 | 264,658 |
| Countries with Three Borders | 0 | - | 4.96 | 36,452 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,912 |
| Largest Cities for each Latitude Degree | 0 | - | 5.00 | 48,005 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,006 |
| Demonym of Every Country | 0 | - | 4.91 | 59,150 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,285 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,662 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,345 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,197 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,425 |
| Biggest Cities in History | 0 | - | 4.52 | 90,011 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 76,173 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,041 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,063 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,143 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,354 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,229 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,583 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,496 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,041 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,396 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,309 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,123 |
