| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,000 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,017 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,202 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,499 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,190 |
| Countries with Megacities | 0 | - | 4.99 | 267,173 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,872 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,151 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,186 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,255 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,279 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,533 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,673 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,454 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,334 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,062 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,677 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,908 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,221 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,620 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,947 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,970 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,793 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,434 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,479 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,026 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,797 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,260 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,970 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,625 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,731 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,221 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,405 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,425 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,716 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,639 |
| European Countries by Clue | 0 | - | 4.92 | 184,170 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 101,563 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,663 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,198 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,071 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,032 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,387 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,129 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,418 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,917 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,366 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,688 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,764 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,900 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,611 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,679 |
| Largest City by Island | 0 | - | 4.87 | 72,456 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,428 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,706 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,149 |
| Megacities on a World Map | 0 | - | 4.98 | 256,976 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,051 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,774 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,685 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,462 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,282 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,685 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,829 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,901 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,535 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,205 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,519 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,862 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,777 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,676 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,940 |
| Boundary Waters | 0 | - | 4.92 | 88,769 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,419 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,712 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,357 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,974 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,979 |
| Most Populous Islands | 0 | - | 4.80 | 123,338 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,384 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,650 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,478 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,080 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,734 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,881 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,982 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,858 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,995 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,499 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,573 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,811 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,997 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,168 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,429 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,771 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,229 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,521 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,253 |
| The Only American Country ... | 0 | - | 4.92 | 122,221 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,750 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,371 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,677 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,335 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,918 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,886,698 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,137 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,798 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,116 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,655 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,158 |
| Biggest City by Region | 0 | - | 4.50 | 36,392 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,340 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,318 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,984 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,805 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,736 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,307 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,443 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,558 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,493 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,573 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 102,939 |
| Landlocked Countries | 0 | - | 4.99 | 425,974 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 588,730 |
| Countries by Three Words #3 | 0 | - | 4.80 | 129,697 |
| Countries by Three Words #4 | 0 | - | 4.45 | 101,352 |
| Countries by a Single Clue #1 | 0 | - | 4.75 | 101,032 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 95,369 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 87,074 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 77,191 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 87,236 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 95,224 |
| Countries by a Single Clue #10 | 0 | - | 4.56 | 68,040 |
| Countries by a Single Clue #11 | 0 | - | 4.61 | 76,783 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 79,221 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,572 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 57,153 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,932 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,408 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,769 |
| Population Trivia | 0 | - | 4.32 | 27,571 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,081 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,050 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,332 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,663 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,459 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,215 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,924 |
| World Capitals Quiz | 0 | - | 5.00 | 5,106,644 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,336 |
| Himalayan Countries | 0 | - | 4.93 | 140,290 |
| Andean Countries | 0 | - | 4.94 | 85,492 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,636 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,038 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,209 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,455 |
| Danube Countries | 0 | - | 4.97 | 72,410 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,607 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,852 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,150 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,633 |
| European Landlocked Countries | 0 | - | 4.99 | 147,618 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,318 |
| Countries with the Most Species | 0 | - | 4.99 | 103,573 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,429 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,781 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,889 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,848 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,587 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,026 |
| Countries in the Alps | 0 | - | 4.87 | 118,790 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,660 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,887 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,971 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,036 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,971 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,270 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,419 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,873 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,431 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,189 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,888 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,752 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,567 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,809 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,901 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,873 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,625 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 73,366 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,682 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,762 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,181 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,515 |
| Largest Countries By Category | 0 | - | 4.97 | 158,881 |
| Countries by Countries | 0 | - | 4.96 | 63,653 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,281 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,403 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,674 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,015 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,441 |
