| 17th Century A-Z | 0 | - | 4.78 | 34,775 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,441 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,926 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,844 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,646 |
| Empires A-Z | 0 | - | 4.52 | 45,497 |
| History by Letter - A | 0 | - | 4.51 | 153,952 |
| History by Letter - B | 0 | - | 4.45 | 173,371 |
| History by Letter - C | 0 | - | 4.70 | 172,714 |
| History by Letter - E | 0 | - | 4.51 | 141,547 |
| History by Letter - G | 0 | - | 4.46 | 122,942 |
| History by Letter - H | 0 | - | 4.45 | 137,633 |
| History by Letter - J | 0 | - | 4.51 | 155,071 |
| History by Letter - N | 0 | - | 4.45 | 104,835 |
| History by Letter - S | 0 | - | 4.47 | 95,015 |
| History by Letter - W | 0 | - | 4.45 | 110,256 |
| History by Letter - M | 0 | - | 4.54 | 120,736 |
| History by Letter - K | 0 | - | 4.50 | 102,043 |
| History by Letter - L | 0 | - | 4.50 | 112,844 |
| History by Letter - I | 0 | - | 4.46 | 105,063 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,582 |
| Geography by Letter - T | 0 | - | 4.84 | 155,383 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,767 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,506 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,469 |
| 20th Century A-Z | 0 | - | 4.50 | 54,015 |
| 19th Century A-Z | 0 | - | 4.77 | 47,497 |
| 18th Century A-Z | 0 | - | 4.54 | 43,350 |
| History by Letter - D | 0 | - | 4.40 | 138,639 |
| History by Letter - F | 0 | - | 4.19 | 115,117 |
| History by Letter - O | 0 | - | 4.32 | 100,309 |
| History by Letter - P | 0 | - | 4.36 | 108,508 |
| History by Letter - Q | 0 | - | 4.34 | 80,823 |
| History by Letter - R | 0 | - | 4.26 | 122,852 |
| History by Letter - T | 0 | - | 4.39 | 105,843 |
| History by Letter - U | 0 | - | 4.19 | 101,356 |
| History by Letter - V | 0 | - | 4.27 | 81,241 |
| History by Letter - Y | 0 | - | 4.27 | 87,752 |
| History by Letter - Z | 0 | - | 4.20 | 77,479 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,358 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 83,124 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,990 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,180 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,799 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,001 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,106 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,112 |
| Middle East A-Z | 0 | - | 4.47 | 46,259 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,359 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,572 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,140 |
| Star Wars A-Z | 0 | - | 4.46 | 88,928 |
| Name an Official Language A-Z | 0 | - | 4.91 | 177,086 |
| WWII Geography | 0 | - | 4.81 | 121,443 |
| Normandy D-Day Beaches | 0 | - | 4.84 | 40,763 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,422 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,310 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,487 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,908 |
| 16th Century A-Z | 0 | - | 4.59 | 25,034 |
| 15th Century A-Z | 0 | - | 4.50 | 24,029 |
| 14th Century A-Z | 0 | - | 4.41 | 24,518 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,811 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,801 |
| Name the English Monarchs | 0 | - | 4.91 | 507,047 |
| The Trojan War | 0 | - | 4.83 | 40,029 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,086 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,842 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,648 |
| Roman Emperors | 0 | - | 4.95 | 121,340 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,199 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,270 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,143 |
| Geography by Letter - A | 0 | - | 4.74 | 213,095 |
| Geography by Letter - B | 0 | - | 4.56 | 186,008 |
| Geography by Letter - H | 0 | - | 4.69 | 151,591 |
| Geography by Letter - C | 0 | - | 4.48 | 159,888 |
| Geography by Letter - D | 0 | - | 4.50 | 151,849 |
| Geography by Letter - E | 0 | - | 4.42 | 148,677 |
| Geography by Letter - I | 0 | - | 4.42 | 122,868 |
| Geography by Letter - K | 0 | - | 4.54 | 119,354 |
| Geography by Letter - L | 0 | - | 4.44 | 149,715 |
| Geography by Letter - M | 0 | - | 4.50 | 119,699 |
| Geography by Letter - N | 0 | - | 4.51 | 128,054 |
| Geography by Letter - P | 0 | - | 4.47 | 177,015 |
| Geography by Letter - R | 0 | - | 4.43 | 132,791 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,598 |
| Geography by Letter - U | 0 | - | 4.52 | 144,230 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,390 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,581 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,176 |
| Switzerland A-Z | 0 | - | 4.45 | 25,780 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,524 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,846 |
| Movies that Start with G | 0 | - | 4.49 | 68,845 |
| Movies that Start with I | 0 | - | 4.41 | 65,441 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,881 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,927 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,974 |
| World War II Multiple Choice | 0 | - | 4.40 | 113,423 |
| WWI... or WWII? | 0 | - | 4.85 | 143,703 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,160 |
| Name the War | 0 | - | 4.37 | 202,933 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,646 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,458 |
| Famous Families #1 | 0 | - | 4.20 | 83,762 |
| Names for Warriors | 0 | - | 4.40 | 37,071 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,445 |
| Military History A-Z | 0 | - | 4.20 | 21,266 |
| Ye Olde Professions | 0 | - | 4.63 | 157,554 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,505 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,588 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,783 |
| NATO Military Alphabet | 0 | - | 4.98 | 564,750 |
| Animals that Start with L | 0 | - | 4.47 | 102,500 |
| Animals that Start with P | 0 | - | 4.45 | 86,518 |
| Animals that Start with S | 0 | - | 4.49 | 87,720 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 91,182 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,657 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 78,005 |
| Islands A-Z | 0 | - | 4.46 | 127,916 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 60,397 |
| Human Body A-Z | 0 | - | 4.51 | 130,100 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,052 |
| Africa A-Z | 0 | - | 4.57 | 46,790 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,277 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,546 |
| Former Countries by Territory Map | 0 | - | 4.96 | 104,115 |
| Empires by Maps | 0 | - | 4.98 | 122,399 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,200 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,489 |
| The 7 Wonders of the Ancient World | 0 | - | 4.86 | 82,649 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,732 |
| Brand Logos That Start With D | 0 | - | 4.37 | 62,285 |
| Brand Logos That Start With C | 0 | - | 4.21 | 50,196 |
| Brand Logos That Start With L | 0 | - | 4.40 | 62,002 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,617 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,392 |
| Countries by Military Spending | 0 | - | 4.93 | 179,109 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,326,823 |
| Disney A-Z | 0 | - | 4.37 | 87,539 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,625 |
| Literature by Letter - A | 0 | - | 4.24 | 32,394 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,429 |
| Companies A-Z | 0 | - | 4.30 | 42,781 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,816 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,753 |
| Geography by Letter - G | 0 | - | 4.33 | 127,183 |
| Geography by Letter - F | 0 | - | 4.28 | 138,883 |
| Geography by Letter - J | 0 | - | 4.35 | 123,764 |
| Geography by Letter - O | 0 | - | 4.37 | 130,571 |
| Geography by Letter - V | 0 | - | 4.39 | 122,715 |
| Geography by Letter - W | 0 | - | 4.39 | 115,559 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,267 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,261 |
| Geography by Letter - Q | 0 | - | 4.38 | 70,160 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,391 |
| Video Games A-Z | 0 | - | 4.05 | 39,268 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,422 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,574 |
| Turkey A-Z | 0 | - | 4.04 | 11,937 |
| Movies that Start with A | 0 | - | 4.13 | 62,159 |
| Movies that Start with C | 0 | - | 4.30 | 62,161 |
| Movies that Start with B | 0 | - | 4.36 | 85,720 |
| Movies that Start with D | 0 | - | 4.34 | 68,683 |
| Movies that Start with E | 0 | - | 4.13 | 68,621 |
| Movies that Start with J | 0 | - | 4.18 | 76,436 |
| Movies that Start with L | 0 | - | 4.16 | 60,620 |
| Movies that Start with M | 0 | - | 4.28 | 48,414 |
| Movies that Start with N | 0 | - | 4.02 | 41,408 |
| Movies that Start with P | 0 | - | 4.25 | 54,306 |
| Movies that Start with R | 0 | - | 4.17 | 46,834 |
| Movies that Start with W | 0 | - | 4.07 | 44,381 |
| Movies that Start with T | 0 | - | 4.34 | 49,476 |
| Movies that Start with S | 0 | - | 4.35 | 56,657 |
| Movies that Start with F | 0 | - | 4.13 | 69,109 |
| Music by Letter - F | 0 | - | 4.47 | 27,145 |
| Music by Letter - A | 0 | - | 4.61 | 31,546 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,389 |
| Metals of Antiquity | 0 | - | 4.95 | 93,993 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,190 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 710,439 |
| Notable People of WWII | 0 | - | 4.53 | 86,613 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,671 |
| 1950s Decade Quiz | 0 | - | 4.42 | 49,768 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 45,586 |
| World War I Quiz | 0 | - | 4.78 | 102,132 |
| WWI A-Z | 0 | - | 4.51 | 38,647 |
| Oldest Things | 0 | - | 3.92 | 65,719 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,869 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,953 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,264 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,060 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.28 | 45,163 |
| NBA Basketball by Year, 2000–Present | 0 | - | 4.34 | 61,420 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,679 |
| Medieval English History | 0 | - | 4.53 | 43,673 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,805 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,679 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,491 |
