| History by Letter - A | 0 | - | 4.51 | 153,818 |
| History by Letter - B | 0 | - | 4.45 | 173,200 |
| History by Letter - C | 0 | - | 4.70 | 172,542 |
| History by Letter - E | 0 | - | 4.51 | 141,416 |
| History by Letter - G | 0 | - | 4.46 | 122,832 |
| History by Letter - H | 0 | - | 4.45 | 137,496 |
| History by Letter - J | 0 | - | 4.51 | 154,917 |
| History by Letter - N | 0 | - | 4.45 | 104,738 |
| History by Letter - S | 0 | - | 4.47 | 94,913 |
| History by Letter - W | 0 | - | 4.45 | 110,151 |
| History by Letter - M | 0 | - | 4.54 | 120,626 |
| History by Letter - K | 0 | - | 4.50 | 101,938 |
| History by Letter - L | 0 | - | 4.50 | 112,755 |
| History by Letter - I | 0 | - | 4.46 | 104,970 |
| History by Letter - D | 0 | - | 4.40 | 138,521 |
| History by Letter - F | 0 | - | 4.19 | 115,038 |
| History by Letter - O | 0 | - | 4.32 | 100,235 |
| History by Letter - P | 0 | - | 4.36 | 108,410 |
| History by Letter - Q | 0 | - | 4.34 | 80,760 |
| History by Letter - R | 0 | - | 4.26 | 122,761 |
| History by Letter - T | 0 | - | 4.39 | 105,760 |
| History by Letter - U | 0 | - | 4.19 | 101,271 |
| History by Letter - V | 0 | - | 4.27 | 81,178 |
| History by Letter - Y | 0 | - | 4.27 | 87,688 |
| History by Letter - Z | 0 | - | 4.20 | 77,422 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,332 |
| Empires A-Z | 0 | - | 4.52 | 45,424 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,798 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,777 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,158 |
| Geography by Letter - T | 0 | - | 4.84 | 154,995 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,650 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,435 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,420 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,931 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,764 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,053 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,564 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,855 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,818 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,857 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,175 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,416 |
| 20th Century A-Z | 0 | - | 4.50 | 53,955 |
| 19th Century A-Z | 0 | - | 4.77 | 47,447 |
| 18th Century A-Z | 0 | - | 4.54 | 43,301 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,397 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,816 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,112 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,451 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,836 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,644 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,127 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,574 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,808 |
| 16th Century A-Z | 0 | - | 4.58 | 25,004 |
| 15th Century A-Z | 0 | - | 4.49 | 24,003 |
| 14th Century A-Z | 0 | - | 4.41 | 24,489 |
| 17th Century A-Z | 0 | - | 4.78 | 34,739 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,063 |
| NATO Military Alphabet | 0 | - | 4.98 | 563,819 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,111 |
| Geography by Letter - A | 0 | - | 4.74 | 212,663 |
| Geography by Letter - B | 0 | - | 4.56 | 185,648 |
| Geography by Letter - H | 0 | - | 4.69 | 151,147 |
| Geography by Letter - C | 0 | - | 4.48 | 159,590 |
| Geography by Letter - D | 0 | - | 4.50 | 151,573 |
| Geography by Letter - E | 0 | - | 4.42 | 148,398 |
| Geography by Letter - I | 0 | - | 4.42 | 122,652 |
| Geography by Letter - K | 0 | - | 4.54 | 118,998 |
| Geography by Letter - L | 0 | - | 4.44 | 149,487 |
| Geography by Letter - M | 0 | - | 4.49 | 119,492 |
| Geography by Letter - N | 0 | - | 4.51 | 127,861 |
| Geography by Letter - P | 0 | - | 4.47 | 176,802 |
| Geography by Letter - R | 0 | - | 4.43 | 132,530 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,350 |
| Geography by Letter - U | 0 | - | 4.52 | 143,838 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,327 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,759 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,545 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,116 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,497 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,789 |
| Movies that Start with G | 0 | - | 4.49 | 68,790 |
| Movies that Start with I | 0 | - | 4.41 | 65,393 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,307 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,853 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,117 |
| Name the War | 0 | - | 4.37 | 202,758 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,628 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,425 |
| Famous Families #1 | 0 | - | 4.20 | 83,718 |
| Names for Warriors | 0 | - | 4.40 | 37,047 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,407 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,174 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,653 |
| Empires by Maps | 0 | - | 4.98 | 121,737 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,761 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,813 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,937 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,084 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,576 |
| The 15th Century | 0 | - | 4.43 | 51,316 |
| The 14th Century | 0 | - | 4.55 | 49,402 |
| The 13th Century | 0 | - | 4.48 | 43,363 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,249 |
| Military History A-Z | 0 | - | 4.20 | 21,235 |
| Ye Olde Professions | 0 | - | 4.63 | 157,395 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,465 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,560 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,758 |
| Countries by Military Spending | 0 | - | 4.93 | 178,908 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,324,480 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,535 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,630 |
| Animals that Start with L | 0 | - | 4.47 | 102,398 |
| Animals that Start with P | 0 | - | 4.45 | 86,446 |
| Animals that Start with S | 0 | - | 4.49 | 87,640 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 91,032 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,462 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 75,113 |
| Islands A-Z | 0 | - | 4.46 | 127,217 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,993 |
| Human Body A-Z | 0 | - | 4.51 | 129,595 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,937 |
| Africa A-Z | 0 | - | 4.57 | 46,755 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,190 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,486 |
| Metals of Antiquity | 0 | - | 4.95 | 93,853 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,087 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,467 |
| WWI... or WWII? | 0 | - | 4.85 | 143,235 |
| Oldest Things | 0 | - | 3.92 | 65,707 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,858 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,940 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,226 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,589 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,561 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,123 |
| Brand Logos That Start With C | 0 | - | 4.20 | 50,068 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,826 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,443 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,196 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,393 |
| Disney A-Z | 0 | - | 4.37 | 87,455 |
| Literature by Letter - A | 0 | - | 4.24 | 32,332 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,397 |
| Companies A-Z | 0 | - | 4.30 | 42,764 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,416 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,729 |
| Geography by Letter - G | 0 | - | 4.33 | 126,971 |
| Geography by Letter - F | 0 | - | 4.28 | 138,686 |
| Geography by Letter - J | 0 | - | 4.35 | 123,568 |
| Geography by Letter - O | 0 | - | 4.37 | 130,381 |
| Geography by Letter - V | 0 | - | 4.39 | 122,479 |
| Geography by Letter - W | 0 | - | 4.39 | 115,397 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,092 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,107 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,991 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,367 |
| Video Games A-Z | 0 | - | 4.05 | 39,219 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,386 |
| Middle East A-Z | 0 | - | 4.47 | 46,226 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,536 |
| Movies that Start with A | 0 | - | 4.13 | 62,112 |
| Movies that Start with C | 0 | - | 4.30 | 62,103 |
| Movies that Start with B | 0 | - | 4.36 | 85,677 |
| Movies that Start with D | 0 | - | 4.34 | 68,639 |
| Movies that Start with E | 0 | - | 4.13 | 68,578 |
| Movies that Start with J | 0 | - | 4.18 | 76,398 |
| Movies that Start with L | 0 | - | 4.16 | 60,577 |
| Movies that Start with M | 0 | - | 4.28 | 48,378 |
| Movies that Start with N | 0 | - | 4.02 | 41,375 |
| Movies that Start with P | 0 | - | 4.25 | 54,276 |
| Movies that Start with R | 0 | - | 4.17 | 46,795 |
| Movies that Start with W | 0 | - | 4.07 | 44,364 |
| Movies that Start with T | 0 | - | 4.34 | 49,443 |
| Movies that Start with S | 0 | - | 4.35 | 56,619 |
| Movies that Start with F | 0 | - | 4.13 | 69,060 |
| Music by Letter - F | 0 | - | 4.47 | 27,122 |
| Music by Letter - A | 0 | - | 4.61 | 31,514 |
| Influential Women in History | 0 | - | 4.42 | 36,319 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,357 |
| Cradles of Civilization | 0 | - | 4.46 | 40,264 |
| Materials From History #1 | 0 | - | 4.56 | 51,999 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,874 |
| Notable People of WWII | 0 | - | 4.53 | 86,176 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,520 |
| World War I Quiz | 0 | - | 4.78 | 102,013 |
| WWI A-Z | 0 | - | 4.51 | 38,577 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,523 |
| Famous Explorers | 0 | - | 4.58 | 36,325 |
| Famous Empires by Description | 0 | - | 4.73 | 118,917 |
| Answers by Time Period | 0 | - | 4.64 | 55,828 |
| History of France | 0 | - | 4.61 | 57,545 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,792 |
| Star Wars A-Z | 0 | - | 4.46 | 88,775 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,722 |
| Musical Acts by Letter - M | 0 | - | 4.15 | 93,786 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,555 |
