| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,104 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,173 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,193 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,317 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,680 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,642 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,904 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,827 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 81,694 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,510 |
| Countries with Megacities | 0 | - | 4.99 | 267,880 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,166 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,345 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,491 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,446 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,092 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,994 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,029 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,659,954 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,577 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,470 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,526 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,820 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,997 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,364 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,725 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,092 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,187 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,958 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,835 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,667 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,606 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,950 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,385 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,098 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,715 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,845 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,316 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,566 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,769 |
| Name a Valid World City | 0 | - | 4.85 | 72,141 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,735 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,887 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,938 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,347 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 66,228 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,164 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,145 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,516 |
| Random Capital to Country | 0 | - | 4.99 | 2,604,234 |
| Random Country to Capital | 0 | - | 4.98 | 930,108 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,128,306 |
| Countries with Four Letters | 0 | - | 4.99 | 426,472 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,064 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,415 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,641 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,615 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,975 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,578 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,864 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,897 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,054 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,259 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,789 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,855 |
| Largest City by Island | 0 | - | 4.87 | 72,574 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,497 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,871 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,250 |
| Megacities on a World Map | 0 | - | 4.98 | 257,478 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,999 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,845 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,838 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,787 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,356 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,864 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,034 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,019 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,612 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,282 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,575 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,928 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,872 |
| Capital Cities Chain | 0 | - | 4.84 | 83,524 |
| Solve the Secret Capital City | 0 | - | 4.80 | 164,736 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,728 |
| Country Chain | 0 | - | 4.96 | 218,668 |
| Countries by Emojis | 0 | - | 4.99 | 242,857 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,714 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,381 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,812 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,241 |
| Islands by Country #1 | 0 | - | 4.90 | 176,500 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,340 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,658 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,472 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 219,515 |
| Name a Valid Country #3 | 0 | - | 4.99 | 266,399 |
| Name a Valid Country #1 | 0 | - | 4.99 | 296,131 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,624 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,614 |
| Name a Valid Country #5 | 0 | - | 4.99 | 210,431 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,659 |
| Name a Valid Country #7 | 0 | - | 4.91 | 132,161 |
| Name a Valid Country #8 | 0 | - | 4.86 | 101,282 |
| Name a Valid Country #10 | 0 | - | 4.93 | 44,434 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 745,657 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 66,708 |
| Boundary Waters | 0 | - | 4.92 | 88,838 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,469 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,846 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,570 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,063 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,088 |
| Most Populous Islands | 0 | - | 4.80 | 123,442 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,404 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,676 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,925 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,450 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,306 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,095 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,023 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,972 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,111 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,546 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,710 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,898 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,129 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,367 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,485 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,377 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,366 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,605 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,371 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,484 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,607 |
| The Only Country ... | 0 | - | 4.91 | 82,050 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,772 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,212 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 90,023 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,694 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,880 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,625 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,461 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 194,034 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,352 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 141,910 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,633 |
| Random Countries by Borders | 0 | - | 4.99 | 83,202 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,911 |
| Name a Valid Island Country | 0 | - | 4.97 | 130,461 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,621 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,313 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,972,664 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,322 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,248 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,543 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,593 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,922 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,242 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,868 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,207 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,679 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,180 |
| Biggest City by Region | 0 | - | 4.50 | 36,417 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,375 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,371 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,034 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,100 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,923 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,330 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,460 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,617 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,721 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,604 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 103,175 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,521 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 67,497 |
| Cities Chain #2 | 0 | - | 4.42 | 56,548 |
| Cities Chain #1 | 0 | - | 4.61 | 66,868 |
| Name Any Valid U.S. City | 0 | - | 4.49 | 41,209 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,497 |
| Random World Capitals on a Map | 0 | - | 4.93 | 136,031 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,533 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 90,013 |
| Landlocked Countries | 0 | - | 4.99 | 427,285 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 983,698 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 97,858 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 140,458 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 591,975 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 338,266 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 80,031 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 388,977 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,472 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,315 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,995 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,518 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,818 |
| Population Trivia | 0 | - | 4.32 | 27,594 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,234 |
