| History by Letter - A | 0 | - | 4.50 | 146,194 |
| History by Letter - B | 0 | - | 4.48 | 165,081 |
| History by Letter - C | 0 | - | 4.69 | 163,399 |
| History by Letter - E | 0 | - | 4.49 | 134,430 |
| History by Letter - G | 0 | - | 4.45 | 116,902 |
| History by Letter - H | 0 | - | 4.43 | 130,865 |
| History by Letter - J | 0 | - | 4.49 | 147,512 |
| History by Letter - N | 0 | - | 4.43 | 99,443 |
| History by Letter - S | 0 | - | 4.46 | 90,084 |
| History by Letter - T | 0 | - | 4.42 | 101,419 |
| History by Letter - W | 0 | - | 4.46 | 104,582 |
| History by Letter - M | 0 | - | 4.53 | 114,784 |
| History by Letter - K | 0 | - | 4.49 | 97,271 |
| History by Letter - L | 0 | - | 4.47 | 107,533 |
| History by Letter - I | 0 | - | 4.46 | 99,841 |
| History by Letter - D | 0 | - | 4.35 | 132,246 |
| History by Letter - F | 0 | - | 4.20 | 109,689 |
| History by Letter - O | 0 | - | 4.30 | 95,696 |
| History by Letter - P | 0 | - | 4.36 | 103,498 |
| History by Letter - Q | 0 | - | 4.34 | 77,461 |
| History by Letter - R | 0 | - | 4.23 | 117,980 |
| History by Letter - U | 0 | - | 4.18 | 96,845 |
| History by Letter - V | 0 | - | 4.28 | 77,937 |
| History by Letter - Y | 0 | - | 4.24 | 84,366 |
| History by Letter - Z | 0 | - | 4.20 | 74,605 |
| The 3rd and 4th Century | 0 | - | 4.59 | 25,919 |
| Empires A-Z | 0 | - | 4.49 | 42,843 |
| Same Start and End Letter - History #1 | 0 | - | 4.15 | 24,182 |
| Same Start and End Letter - History #2 | 0 | - | 4.09 | 24,745 |
| Geography by Letter - T | 0 | - | 4.85 | 144,455 |
| People in History A-Z #1 | 0 | - | 4.62 | 95,206 |
| People in History A-Z #2 | 0 | - | 4.47 | 52,629 |
| People in History A-Z #3 | 0 | - | 4.48 | 44,200 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 76,537 |
| Geography by Letter on the World Map - C | 0 | - | 4.82 | 111,341 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 143,133 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 188,257 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 166,099 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 184,748 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 293,910 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 174,314 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 69,468 |
| 20th Century A-Z | 0 | - | 4.51 | 49,547 |
| 19th Century A-Z | 0 | - | 4.74 | 37,064 |
| 18th Century A-Z | 0 | - | 4.60 | 33,696 |
| Famous Firsts #1 | 0 | - | 4.42 | 67,244 |
| Time Magazine Person of the Year | 0 | - | 4.55 | 70,276 |
| Invasions | 0 | - | 4.63 | 93,943 |
| Names for Warriors | 0 | - | 4.42 | 35,850 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 225,722 |
| Name an Official Language A-Z | 0 | - | 4.92 | 148,347 |
| Normandy D-Day Beaches | 0 | - | 4.81 | 38,710 |
| Territory Changes in World War I | 0 | - | 4.88 | 43,711 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 111,951 |
| People Depicted in Paintings | 0 | - | 4.55 | 43,067 |
| 16th Century A-Z | 0 | - | 4.58 | 16,930 |
| 15th Century A-Z | 0 | - | 4.45 | 21,078 |
| Brand Logos That Start with A | 0 | - | 4.51 | 64,064 |
| Brand Logos That Start With B | 0 | - | 4.45 | 55,053 |
| Brand Logos That Start With M | 0 | - | 4.43 | 56,563 |
| NATO Military Alphabet | 0 | - | 4.98 | 528,744 |
| Disney A-Z | 0 | - | 4.41 | 82,763 |
| Religion A-Z #2 | 0 | - | 4.41 | 35,753 |
| Geography by Letter - A | 0 | - | 4.70 | 203,479 |
| Geography by Letter - B | 0 | - | 4.54 | 176,776 |
| Geography by Letter - H | 0 | - | 4.69 | 143,796 |
| Geography by Letter - C | 0 | - | 4.50 | 152,083 |
| Geography by Letter - D | 0 | - | 4.49 | 144,353 |
| Geography by Letter - E | 0 | - | 4.41 | 141,401 |
| Geography by Letter - I | 0 | - | 4.44 | 117,278 |
| Geography by Letter - K | 0 | - | 4.54 | 113,382 |
| Geography by Letter - L | 0 | - | 4.45 | 142,591 |
| Geography by Letter - M | 0 | - | 4.49 | 113,367 |
| Geography by Letter - N | 0 | - | 4.51 | 122,093 |
| Geography by Letter - P | 0 | - | 4.47 | 170,246 |
| Geography by Letter - R | 0 | - | 4.42 | 123,887 |
| Geography by Letter - S #1 | 0 | - | 4.75 | 133,519 |
| Geography by Letter - U | 0 | - | 4.52 | 136,187 |
| Asian Geography By Letter - K | 0 | - | 4.77 | 56,996 |
| A to Z: Musical Terms | 0 | - | 4.43 | 39,400 |
| Geography A-Z #2 | 0 | - | 4.46 | 51,239 |
| Geography A-Z #5 | 0 | - | 4.46 | 36,144 |
| Geography A-Z #1 | 0 | - | 4.55 | 67,853 |
| Movies that Start with G | 0 | - | 4.49 | 66,764 |
| Movies that Start with I | 0 | - | 4.41 | 63,480 |
| WWII A-Z #1 | 0 | - | 4.79 | 99,014 |
| WWII A-Z #2 | 0 | - | 4.44 | 52,607 |
| Famous Battles Quiz | 0 | - | 4.24 | 47,924 |
| Name the War Quiz | 0 | - | 4.38 | 196,939 |
| Famous U.S. Generals | 0 | - | 4.26 | 37,839 |
| Religions by Country of Origin Quiz | 0 | - | 4.28 | 74,835 |
| Famous Families #1 | 0 | - | 4.27 | 82,033 |
| People in History A-Z #5 | 0 | - | 4.07 | 30,762 |
| People in History A-Z #4 | 0 | - | 4.10 | 21,964 |
| Former Countries by Territory Map | 0 | - | 4.96 | 94,589 |
| Empires by Maps | 0 | - | 4.98 | 107,941 |
| Art Works Picture Quiz #1 | 0 | - | 4.50 | 103,708 |
| Art Works Picture Quiz #2 | 0 | - | 4.46 | 92,523 |
| Art Works Picture Quiz #3 | 0 | - | 4.41 | 45,250 |
| Ultimate 20th Century History Quiz | 0 | - | 4.84 | 50,309 |
| The 15th Century | 0 | - | 4.41 | 49,984 |
| The 14th Century | 0 | - | 4.54 | 48,081 |
| The 13th Century | 0 | - | 4.47 | 42,170 |
| The 11th and 12th Century | 0 | - | 4.54 | 54,560 |
| 14th Century A-Z | 0 | - | 4.35 | 16,715 |
| 17th Century A-Z | 0 | - | 4.64 | 25,786 |
| Military History A-Z | 0 | - | 4.19 | 20,422 |
| Ye Olde Professions | 0 | - | 4.70 | 151,123 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.41 | 43,189 |
| Countries by Military Spending | 0 | - | 4.93 | 168,548 |
| 100 Most Common English Words | 0 | - | 4.89 | 1,247,676 |
| Classic Novels by Plot #2 | 0 | - | 4.83 | 34,208 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.91 | 105,067 |
| Animals that Start with L | 0 | - | 4.46 | 98,052 |
| Animals that Start with P | 0 | - | 4.45 | 83,137 |
| Animals that Start with S | 0 | - | 4.49 | 84,099 |
| Geography by Letter on the World Map - B | 0 | - | 4.53 | 85,102 |
| Geography by Letter on the World Map - A | 0 | - | 4.80 | 101,000 |
| World Cities A-Z #1 | 0 | - | 4.52 | 60,665 |
| Islands A-Z | 0 | - | 4.45 | 112,209 |
| World Cities A-Z #2 | 0 | - | 4.46 | 53,108 |
| Human Body A-Z | 0 | - | 4.50 | 124,599 |
| Africa A-Z | 0 | - | 4.57 | 45,213 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 45,430 |
| Ethnic Groups A-Z | 0 | - | 4.54 | 40,609 |
| Metals of Antiquity | 0 | - | 4.94 | 89,782 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 43,371 |
| Space Exploration Trivia | 0 | - | 4.38 | 34,343 |
| Oldest Things | 0 | - | 3.91 | 65,198 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,515 |
| Famous Firsts #2 | 0 | - | 4.00 | 79,725 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 13,800 |
| Years in History #1 - Multiple Choice | 0 | - | 4.83 | 67,033 |
| Brand Logos That Start With D | 0 | - | 4.33 | 56,308 |
| Brand Logos That Start With C | 0 | - | 4.14 | 45,738 |
| Brand Logos That Start With L | 0 | - | 4.40 | 55,019 |
| Brand Logos That Start With S | 0 | - | 4.39 | 52,099 |
| Most Common English Verbs - Extreme | 0 | - | 4.95 | 148,071 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.41 | 14,552 |
| Companies A-Z | 0 | - | 4.30 | 42,093 |
| Top Five Exporting Partners by Country | 0 | - | 4.85 | 64,890 |
| Religion A-Z #1 | 0 | - | 4.31 | 60,649 |
| Geography by Letter - G | 0 | - | 4.35 | 121,058 |
| Geography by Letter - F | 0 | - | 4.27 | 132,079 |
| Geography by Letter - J | 0 | - | 4.35 | 117,885 |
| Geography by Letter - O | 0 | - | 4.37 | 124,759 |
| Geography by Letter - V | 0 | - | 4.38 | 115,263 |
| Geography by Letter - W | 0 | - | 4.39 | 110,513 |
| Geography by Letter - Y | 0 | - | 4.37 | 106,686 |
| Geography by Letter - Z | 0 | - | 4.09 | 77,759 |
| Geography by Letter - Q | 0 | - | 4.38 | 65,699 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.17 | 34,387 |
| Video Games A-Z | 0 | - | 4.05 | 37,131 |
| Geography A-Z #3 | 0 | - | 4.20 | 38,019 |
| Middle East A-Z | 0 | - | 4.46 | 44,559 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 43,002 |
| Movies that Start with A | 0 | - | 4.11 | 60,303 |
| Movies that Start with C | 0 | - | 4.29 | 60,049 |
| Movies that Start with B | 0 | - | 4.34 | 83,087 |
| Movies that Start with D | 0 | - | 4.34 | 67,081 |
| Movies that Start with E | 0 | - | 4.13 | 66,996 |
| Movies that Start with J | 0 | - | 4.22 | 74,506 |
| Movies that Start with L | 0 | - | 4.15 | 59,180 |
| Movies that Start with M | 0 | - | 4.28 | 47,216 |
| Movies that Start with N | 0 | - | 4.01 | 40,341 |
| Movies that Start with P | 0 | - | 4.25 | 53,140 |
| Movies that Start with R | 0 | - | 4.16 | 45,360 |
| Movies that Start with W | 0 | - | 4.06 | 43,413 |
| Movies that Start with T | 0 | - | 4.34 | 48,113 |
| Movies that Start with S | 0 | - | 4.36 | 55,231 |
| Movies that Start with F | 0 | - | 4.15 | 67,471 |
| Music by Letter - F | 0 | - | 4.47 | 25,930 |
| Music by Letter - A | 0 | - | 4.61 | 30,190 |
| Influential Women in History | 0 | - | 4.44 | 31,841 |
| Google What's the Difference? - History | 0 | - | 4.20 | 44,977 |
| Cradles of Civilization | 0 | - | 4.44 | 36,024 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 687,604 |
| Notable People of WWII | 0 | - | 4.54 | 83,515 |
| WWII Trivia #2 | 0 | - | 4.51 | 99,909 |
| World War I Quiz | 0 | - | 4.78 | 96,827 |
| WWI A-Z | 0 | - | 4.49 | 36,988 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 140,947 |
| Famous Explorers | 0 | - | 4.64 | 34,588 |
| Famous Empires in History | 0 | - | 4.79 | 114,093 |
| Answers by Time Period | 0 | - | 4.56 | 53,684 |
| History of France Quiz | 0 | - | 4.56 | 41,687 |
| Star Wars A-Z | 0 | - | 4.45 | 83,899 |
| Musical Acts by Letter - J | 0 | - | 4.19 | 75,621 |
| Musical Acts by Letter - M | 0 | - | 4.12 | 90,248 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 66,738 |
| Musical Acts by Letter - P | 0 | - | 4.23 | 63,754 |
| Musical Acts by Letter - R | 0 | - | 4.32 | 81,200 |
| Musical Acts by Letter - T | 0 | - | 4.11 | 65,377 |
| Musical Acts by Letter - A | 0 | - | 4.27 | 79,868 |
| Musical Acts by Letter - B | 0 | - | 4.33 | 70,705 |
| Musical Acts by Letter - C | 0 | - | 4.33 | 58,184 |
| Musical Acts by Letter - D | 0 | - | 4.11 | 51,295 |
| Musical Acts by Letter - E | 0 | - | 4.39 | 59,627 |
| Animals that Start with A | 0 | - | 4.25 | 107,970 |
| Animals that Start with B | 0 | - | 4.32 | 109,287 |
