| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,965 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,991 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,306 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,118 |
| Countries with Megacities | 0 | - | 4.99 | 267,043 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,816 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,117 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,134 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,225 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,964 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,448 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,429 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,425 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,316 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,008 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,638 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,889 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,209 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,604 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,921 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,934 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,729 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,367 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,441 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,921 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,774 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,235 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,950 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,611 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,708 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,203 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,381 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,303 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,024 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,384 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,566 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,861 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,995 |
| Boundary Waters | 0 | - | 4.92 | 88,758 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,409 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,691 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,334 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,951 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,952 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,943 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,388 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,900 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,336 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,658 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,745 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,883 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,191 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,571 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,643 |
| Largest City by Island | 0 | - | 4.87 | 72,443 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,419 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,679 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,133 |
| Megacities on a World Map | 0 | - | 4.98 | 256,872 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,759 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,656 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,366 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,265 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,642 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,793 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,877 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,514 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,191 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,511 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,853 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,757 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,648 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,916 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,893 |
| Most Populous Islands | 0 | - | 4.80 | 123,322 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,381 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,647 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,976 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,488 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,798 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,389 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,021 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,690 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,848 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,835 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,972 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,555 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,979 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,131 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,416 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,653 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,189 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,503 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,235 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,868,918 |
| Landlocked Countries | 0 | - | 4.99 | 425,669 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 587,997 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,919 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,384 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,758 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,117 |
| Population Trivia | 0 | - | 4.32 | 27,566 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,784 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,095 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,645 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,154 |
| Biggest City by Region | 0 | - | 4.50 | 36,389 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,335 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,309 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,969 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,732 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,709 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,305 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,440 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,547 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,451 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,569 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,227 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,175 |
| Himalayan Countries | 0 | - | 4.93 | 140,176 |
| Andean Countries | 0 | - | 4.94 | 85,397 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,548 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,939 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,126 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,400 |
| Danube Countries | 0 | - | 4.97 | 72,364 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,572 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,821 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,086 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,579 |
| European Landlocked Countries | 0 | - | 4.99 | 147,592 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,275 |
| Countries with the Most Species | 0 | - | 4.99 | 103,552 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,384 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,768 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,878 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,832 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,569 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,000 |
| Countries in the Alps | 0 | - | 4.87 | 118,750 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,587 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,833 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,950 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,011 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,935 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,238 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,381 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,846 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,410 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,160 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,858 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,736 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,546 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,773 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,874 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,799 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,597 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 67,194 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,646 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,634 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,108 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,493 |
| Largest Countries By Category | 0 | - | 4.97 | 158,840 |
| Countries by Countries | 0 | - | 4.96 | 63,627 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,240 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,395 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,664 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,933 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,418 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,096 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,590 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,448 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,981 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,792 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,614 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,057 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,564 |
| Longest International Borders | 0 | - | 4.99 | 265,803 |
| Countries with Three Borders | 0 | - | 4.96 | 36,766 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,344 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,489 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,176 |
| Demonym of Every Country | 0 | - | 4.90 | 61,467 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,391 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,011 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,668 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,843 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,081 |
| Biggest Cities in History | 0 | - | 4.52 | 90,581 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,988 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,056 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,024 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,299 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,609 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,582 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,434 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,169 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,902 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,692 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,665 |
