| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,373 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,432 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,816 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,085 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,235 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,902 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,287 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,349 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 76,887 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,825 |
| Countries with Megacities | 0 | - | 4.99 | 246,057 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,735 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,714 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,205 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,644 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,181 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,922 |
| Biggest Cities in the World | 0 | - | 4.91 | 788,977 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,582,620 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,009 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,701 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,637 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,732 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,381 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,462 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,132 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,408 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,357 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,411 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,605 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,486 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,285 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,355 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,366 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,914 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,028 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,612 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,527 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,214 |
| Name a Valid World City | 0 | - | 4.83 | 69,963 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,756 |
| Solve the Secret Country #2 | 0 | - | 4.84 | 115,762 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,029 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,588 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 62,984 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,136 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,725 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,400 |
| Random Capital to Country | 0 | - | 4.99 | 2,575,795 |
| Random Country to Capital | 0 | - | 4.98 | 910,228 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,085,901 |
| Countries with Four Letters | 0 | - | 4.99 | 417,951 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,624 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,064 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,618 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,011 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,073 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,127 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,725 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,261 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,444 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,207 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,144 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,637 |
| Largest City by Island | 0 | - | 4.87 | 70,921 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,180 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,364 |
| Biggest European Cities by Century | 0 | - | 4.98 | 128,670 |
| Megacities on a World Map | 0 | - | 4.98 | 250,055 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,274 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,700 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,717 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,431 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,954 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,262 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,118 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,169 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,485 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,467 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,702 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,073 |
| Capital Cities Chain | 0 | - | 4.84 | 81,784 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,842 |
| Country Chain | 0 | - | 4.96 | 215,529 |
| Countries by Emojis | 0 | - | 4.99 | 235,740 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,000 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,463 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,976 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,938 |
| Islands by Country #1 | 0 | - | 4.87 | 174,379 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,828 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,192 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,268 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,419 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,487 |
| Name a Valid Country #1 | 0 | - | 4.99 | 282,731 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,027 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,185 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,503 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,133 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,240 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,762 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,306 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 65,828 |
| Boundary Waters | 0 | - | 4.92 | 87,978 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,777 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,154 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,095 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,745 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,631 |
| Most Populous Islands | 0 | - | 4.78 | 121,890 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,185 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,384 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,673 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,769 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,647 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,877 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,582 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,745 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,228 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,789 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,034 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,842 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,660 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,030 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,491 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,498 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,290 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,192 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,439 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,022 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,415 |
| The Only Country ... | 0 | - | 4.91 | 79,683 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,233 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,273 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,745 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,495 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,545 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,206 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,488 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,036 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,218 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 135,829 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,526 |
| Random Countries by Borders | 0 | - | 4.99 | 81,555 |
| Random Name a Valid Country | 0 | - | 4.99 | 202,952 |
| Name a Valid Island Country | 0 | - | 4.96 | 113,915 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,963 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,838,629 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,146 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,856 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,524 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 90,940 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,410 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,360 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,855 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,813 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,875 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,634 |
| Biggest City by Region | 0 | - | 4.50 | 35,959 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,859 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,459 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,027 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,214 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,420 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,994 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,195 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,872 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,621 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,226 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 98,930 |
| Largest World Cities With Five Letters | 0 | - | 4.52 | 66,336 |
| Cities Chain #2 | 0 | - | 4.42 | 56,141 |
| Cities Chain #1 | 0 | - | 4.61 | 66,303 |
| Name Any Valid U.S. City | 0 | - | 4.51 | 40,062 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,328 |
| Random World Capitals on a Map | 0 | - | 4.93 | 132,936 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,366 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,551 |
| Landlocked Countries | 0 | - | 4.99 | 412,734 |
| Countries of the World - One Minute Sprint | 0 | - | 4.35 | 955,465 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 93,230 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,399 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,145 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,371 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 78,804 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 377,826 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 273,932 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,098 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,885 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,065 |
| Population Trivia | 0 | - | 4.32 | 27,409 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,104 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,330 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,100 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,580 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,581 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,253 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,423 |
| World Capitals Quiz | 0 | - | 5.00 | 5,024,311 |
