| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,161 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,185 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,576 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,481 |
| Countries with Megacities | 0 | - | 4.99 | 267,819 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,131 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,333 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,461 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,430 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,957 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,956 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,915 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,570 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,463 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,509 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,808 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,992 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,356 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,716 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,087 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,177 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,949 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,811 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,649 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,563 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,943 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,377 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,091 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,714 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,834 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,300 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,555 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,738 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,061 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,413 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,128 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,024 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,496 |
| Boundary Waters | 0 | - | 4.92 | 88,832 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,465 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,829 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,553 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,060 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,081 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,597 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,603 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,970 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,563 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,848 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,890 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,044 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,252 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,776 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,845 |
| Largest City by Island | 0 | - | 4.87 | 72,563 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,491 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,856 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,242 |
| Megacities on a World Map | 0 | - | 4.98 | 257,430 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,836 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,827 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,764 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,850 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,022 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,010 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,605 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,278 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,571 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,922 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,866 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,801 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,144 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,819 |
| Most Populous Islands | 0 | - | 4.80 | 123,434 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,403 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,674 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,017 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,543 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,892 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,303 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,898 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,433 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,269 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,084 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,967 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,102 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,698 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,122 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,350 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,481 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,322 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,355 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,602 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,361 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,965,660 |
| Landlocked Countries | 0 | - | 4.99 | 427,203 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 591,755 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,987 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,508 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,815 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,228 |
| Population Trivia | 0 | - | 4.32 | 27,591 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,862 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,195 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,677 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,179 |
| Biggest City by Region | 0 | - | 4.50 | 36,416 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,371 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,363 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,029 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,073 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,917 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,328 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,460 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,607 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,707 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,600 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,436 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,890 |
| Himalayan Countries | 0 | - | 4.93 | 140,805 |
| Andean Countries | 0 | - | 4.94 | 85,792 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,909 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,476 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,457 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,684 |
| Danube Countries | 0 | - | 4.97 | 72,546 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,795 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,970 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,429 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,908 |
| European Landlocked Countries | 0 | - | 4.99 | 147,735 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,530 |
| Countries with the Most Species | 0 | - | 4.99 | 103,642 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,631 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,812 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,951 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,923 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,677 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,125 |
| Countries in the Alps | 0 | - | 4.87 | 118,966 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,979 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,122 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,053 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,169 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,124 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,387 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,587 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,987 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,512 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,309 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,951 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,829 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,669 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,920 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,018 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,136 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,729 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,415 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,831 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,275 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,482 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,612 |
| Largest Countries By Category | 0 | - | 4.97 | 159,080 |
| Countries by Countries | 0 | - | 4.97 | 63,799 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,433 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,448 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,704 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,409 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,545 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,222 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,024 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,575 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,023 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,884 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,655 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,396 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,652 |
| Longest International Borders | 0 | - | 4.99 | 265,993 |
| Countries with Three Borders | 0 | - | 4.96 | 36,827 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,423 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,564 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,210 |
| Demonym of Every Country | 0 | - | 4.90 | 61,633 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,405 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,067 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,743 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,019 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,739 |
| Biggest Cities in History | 0 | - | 4.52 | 90,692 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,197 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,219 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,173 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,525 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,642 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,960 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,607 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,433 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,037 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,731 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,727 |
