| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,496 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,488 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,850 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,172 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,293 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,145 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,323 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,381 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 76,980 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,893 |
| Countries with Megacities | 0 | - | 4.99 | 246,264 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,812 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,749 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,271 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,687 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,726 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,206 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,393 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,584,141 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,041 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,738 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,727 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,769 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,410 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,500 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,167 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,504 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,454 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,571 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,707 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,668 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,351 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,413 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,432 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,958 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,070 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,650 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,585 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,329 |
| Name a Valid World City | 0 | - | 4.83 | 70,011 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,882 |
| Solve the Secret Country #2 | 0 | - | 4.84 | 115,876 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,098 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,658 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,050 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,286 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,267 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,518 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,484 |
| Random Country to Capital | 0 | - | 4.98 | 910,651 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,514 |
| Countries with Four Letters | 0 | - | 4.99 | 418,107 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,632 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,070 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,748 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,077 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,091 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,182 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,773 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,305 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,480 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,232 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,242 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,711 |
| Largest City by Island | 0 | - | 4.87 | 70,957 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,263 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,414 |
| Biggest European Cities by Century | 0 | - | 4.98 | 137,224 |
| Megacities on a World Map | 0 | - | 4.98 | 250,455 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,702 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,726 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,767 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,516 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,027 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,325 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,178 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,190 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,525 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,494 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,729 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,118 |
| Capital Cities Chain | 0 | - | 4.84 | 81,820 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,892 |
| Country Chain | 0 | - | 4.96 | 215,589 |
| Countries by Emojis | 0 | - | 4.99 | 235,865 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,031 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,627 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,015 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,980 |
| Islands by Country #1 | 0 | - | 4.87 | 174,405 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,850 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,222 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,291 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,535 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,579 |
| Name a Valid Country #1 | 0 | - | 4.99 | 282,949 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,122 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,278 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,584 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,205 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,309 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,831 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,654 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 65,842 |
| Boundary Waters | 0 | - | 4.92 | 87,996 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,190 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,151 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,773 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,661 |
| Most Populous Islands | 0 | - | 4.78 | 121,914 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,191 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,395 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,739 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,829 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,698 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,908 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,588 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,768 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,278 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,807 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,068 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,863 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,802 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,114 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,512 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,670 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,354 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,227 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,482 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,051 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,438 |
| The Only Country ... | 0 | - | 4.91 | 79,735 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,273 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,290 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,775 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,540 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,569 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,288 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,579 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,110 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,282 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 135,927 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,545 |
| Random Countries by Borders | 0 | - | 4.99 | 81,584 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,032 |
| Name a Valid Island Country | 0 | - | 4.96 | 113,950 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,974 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,861,069 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,262 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,928 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,573 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 90,989 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,454 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,375 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,876 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,846 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,881 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,649 |
| Biggest City by Region | 0 | - | 4.50 | 35,975 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,873 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,490 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,045 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,301 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,466 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,997 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,205 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,889 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,674 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,235 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 98,944 |
| Largest World Cities With Five Letters | 0 | - | 4.52 | 66,369 |
| Cities Chain #2 | 0 | - | 4.42 | 56,149 |
| Cities Chain #1 | 0 | - | 4.61 | 66,317 |
| Name Any Valid U.S. City | 0 | - | 4.51 | 40,083 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,365 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,003 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,408 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,576 |
| Landlocked Countries | 0 | - | 4.99 | 412,970 |
| Countries of the World - One Minute Sprint | 0 | - | 4.35 | 955,670 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 93,256 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,504 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,902 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,437 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 78,815 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,038 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 273,998 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,114 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,915 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,082 |
| Population Trivia | 0 | - | 4.32 | 27,413 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,141 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,374 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,153 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,615 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,633 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,326 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,456 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,352 |
