| 17th Century A-Z | 0 | - | 4.78 | 34,735 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,285 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,842 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,356 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,556 |
| Empires A-Z | 0 | - | 4.52 | 45,402 |
| History by Letter - A | 0 | - | 4.51 | 153,765 |
| History by Letter - B | 0 | - | 4.45 | 173,138 |
| History by Letter - C | 0 | - | 4.70 | 172,470 |
| History by Letter - E | 0 | - | 4.51 | 141,363 |
| History by Letter - G | 0 | - | 4.46 | 122,778 |
| History by Letter - H | 0 | - | 4.45 | 137,447 |
| History by Letter - J | 0 | - | 4.51 | 154,859 |
| History by Letter - N | 0 | - | 4.45 | 104,702 |
| History by Letter - S | 0 | - | 4.47 | 94,872 |
| History by Letter - W | 0 | - | 4.45 | 110,106 |
| History by Letter - M | 0 | - | 4.54 | 120,578 |
| History by Letter - K | 0 | - | 4.50 | 101,900 |
| History by Letter - L | 0 | - | 4.50 | 112,702 |
| History by Letter - I | 0 | - | 4.46 | 104,925 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,050 |
| Geography by Letter - T | 0 | - | 4.84 | 154,944 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,630 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,417 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,410 |
| 20th Century A-Z | 0 | - | 4.50 | 53,946 |
| 19th Century A-Z | 0 | - | 4.77 | 47,432 |
| 18th Century A-Z | 0 | - | 4.54 | 43,290 |
| History by Letter - D | 0 | - | 4.40 | 138,472 |
| History by Letter - F | 0 | - | 4.18 | 114,994 |
| History by Letter - O | 0 | - | 4.32 | 100,029 |
| History by Letter - P | 0 | - | 4.36 | 108,363 |
| History by Letter - Q | 0 | - | 4.34 | 80,723 |
| History by Letter - R | 0 | - | 4.26 | 122,717 |
| History by Letter - T | 0 | - | 4.39 | 105,717 |
| History by Letter - U | 0 | - | 4.19 | 101,234 |
| History by Letter - V | 0 | - | 4.27 | 81,138 |
| History by Letter - Y | 0 | - | 4.27 | 87,652 |
| History by Letter - Z | 0 | - | 4.20 | 77,394 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,329 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,884 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,727 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,992 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,489 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,788 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,730 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,764 |
| Middle East A-Z | 0 | - | 4.47 | 46,217 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,138 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,356 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,103 |
| Star Wars A-Z | 0 | - | 4.46 | 88,714 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,774 |
| WWII Geography | 0 | - | 4.81 | 120,868 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,631 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,122 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,102 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,376 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,788 |
| 16th Century A-Z | 0 | - | 4.58 | 24,996 |
| 15th Century A-Z | 0 | - | 4.49 | 23,999 |
| 14th Century A-Z | 0 | - | 4.41 | 24,483 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,794 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,770 |
| Name the English Monarchs | 0 | - | 4.91 | 505,746 |
| The Trojan War | 0 | - | 4.83 | 39,947 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,778 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,798 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,522 |
| Roman Emperors | 0 | - | 4.95 | 120,999 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,170 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,019 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,105 |
| Geography by Letter - A | 0 | - | 4.74 | 212,624 |
| Geography by Letter - B | 0 | - | 4.56 | 185,600 |
| Geography by Letter - H | 0 | - | 4.69 | 151,119 |
| Geography by Letter - C | 0 | - | 4.48 | 159,561 |
| Geography by Letter - D | 0 | - | 4.50 | 151,543 |
| Geography by Letter - E | 0 | - | 4.42 | 148,376 |
| Geography by Letter - I | 0 | - | 4.42 | 122,633 |
| Geography by Letter - K | 0 | - | 4.54 | 118,973 |
| Geography by Letter - L | 0 | - | 4.44 | 149,458 |
| Geography by Letter - M | 0 | - | 4.49 | 119,467 |
| Geography by Letter - N | 0 | - | 4.51 | 127,838 |
| Geography by Letter - P | 0 | - | 4.47 | 176,768 |
| Geography by Letter - R | 0 | - | 4.43 | 132,491 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,319 |
| Geography by Letter - U | 0 | - | 4.52 | 143,801 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,319 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,756 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,531 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,103 |
| Switzerland A-Z | 0 | - | 4.45 | 25,753 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,490 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,777 |
| Movies that Start with G | 0 | - | 4.49 | 68,777 |
| Movies that Start with I | 0 | - | 4.41 | 65,383 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,725 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,779 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,931 |
| World War II Multiple Choice | 0 | - | 4.38 | 104,444 |
| WWI... or WWII? | 0 | - | 4.85 | 143,161 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,108 |
| Name the War | 0 | - | 4.37 | 202,725 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,624 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,411 |
| Famous Families #1 | 0 | - | 4.20 | 83,714 |
| Names for Warriors | 0 | - | 4.40 | 37,043 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,399 |
| Military History A-Z | 0 | - | 4.20 | 21,232 |
| Ye Olde Professions | 0 | - | 4.63 | 157,352 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,456 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,555 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,756 |
| NATO Military Alphabet | 0 | - | 4.98 | 563,572 |
| Animals that Start with L | 0 | - | 4.47 | 102,377 |
| Animals that Start with P | 0 | - | 4.45 | 86,427 |
| Animals that Start with S | 0 | - | 4.49 | 87,630 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 90,993 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,419 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 70,667 |
| Islands A-Z | 0 | - | 4.46 | 127,055 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,604 |
| Human Body A-Z | 0 | - | 4.51 | 129,568 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,913 |
| Africa A-Z | 0 | - | 4.57 | 46,751 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,177 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,470 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,558 |
| Empires by Maps | 0 | - | 4.98 | 121,596 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,055 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,463 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,554 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,221 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,512 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,081 |
| Brand Logos That Start With C | 0 | - | 4.20 | 50,038 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,781 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,405 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,152 |
| Countries by Military Spending | 0 | - | 4.93 | 178,858 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,323,951 |
| Disney A-Z | 0 | - | 4.37 | 87,429 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,511 |
| Literature by Letter - A | 0 | - | 4.24 | 32,323 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,391 |
| Companies A-Z | 0 | - | 4.30 | 42,761 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,591 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,723 |
| Geography by Letter - G | 0 | - | 4.33 | 126,951 |
| Geography by Letter - F | 0 | - | 4.28 | 138,667 |
| Geography by Letter - J | 0 | - | 4.35 | 123,546 |
| Geography by Letter - O | 0 | - | 4.37 | 130,362 |
| Geography by Letter - V | 0 | - | 4.39 | 122,449 |
| Geography by Letter - W | 0 | - | 4.39 | 115,377 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,063 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,089 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,979 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,365 |
| Video Games A-Z | 0 | - | 4.05 | 39,201 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,381 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,516 |
| Turkey A-Z | 0 | - | 4.04 | 11,912 |
| Movies that Start with A | 0 | - | 4.13 | 62,102 |
| Movies that Start with C | 0 | - | 4.30 | 62,092 |
| Movies that Start with B | 0 | - | 4.36 | 85,662 |
| Movies that Start with D | 0 | - | 4.34 | 68,629 |
| Movies that Start with E | 0 | - | 4.13 | 68,570 |
| Movies that Start with J | 0 | - | 4.18 | 76,385 |
| Movies that Start with L | 0 | - | 4.16 | 60,572 |
| Movies that Start with M | 0 | - | 4.28 | 48,374 |
| Movies that Start with N | 0 | - | 4.02 | 41,369 |
| Movies that Start with P | 0 | - | 4.25 | 54,268 |
| Movies that Start with R | 0 | - | 4.17 | 46,787 |
| Movies that Start with W | 0 | - | 4.07 | 44,360 |
| Movies that Start with T | 0 | - | 4.34 | 49,435 |
| Movies that Start with S | 0 | - | 4.35 | 56,614 |
| Movies that Start with F | 0 | - | 4.13 | 69,053 |
| Music by Letter - F | 0 | - | 4.47 | 27,116 |
| Music by Letter - A | 0 | - | 4.61 | 31,506 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,354 |
| Metals of Antiquity | 0 | - | 4.95 | 93,829 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,063 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,752 |
| Notable People of WWII | 0 | - | 4.53 | 86,156 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,480 |
| 1950s Decade Quiz | 0 | - | 4.41 | 49,707 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 45,514 |
| World War I Quiz | 0 | - | 4.78 | 101,979 |
| WWI A-Z | 0 | - | 4.51 | 38,562 |
| Oldest Things | 0 | - | 3.92 | 65,702 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,857 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,936 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,199 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,022 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.28 | 45,124 |
| NBA Basketball by Year, 2000–Present | 0 | - | 4.34 | 61,282 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,554 |
| Medieval English History | 0 | - | 4.53 | 43,629 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,786 |
