| History by Letter - A | 0 | - | 4.50 | 140,310 |
| History by Letter - B | 0 | - | 4.48 | 158,278 |
| History by Letter - C | 0 | - | 4.71 | 155,888 |
| History by Letter - E | 0 | - | 4.49 | 129,089 |
| History by Letter - G | 0 | - | 4.46 | 112,028 |
| History by Letter - H | 0 | - | 4.42 | 125,123 |
| History by Letter - J | 0 | - | 4.49 | 141,837 |
| History by Letter - N | 0 | - | 4.44 | 95,567 |
| History by Letter - S | 0 | - | 4.46 | 86,141 |
| History by Letter - W | 0 | - | 4.45 | 99,948 |
| History by Letter - M | 0 | - | 4.54 | 110,570 |
| History by Letter - K | 0 | - | 4.47 | 93,387 |
| History by Letter - L | 0 | - | 4.47 | 103,516 |
| History by Letter - I | 0 | - | 4.46 | 96,106 |
| History by Letter - D | 0 | - | 4.34 | 127,265 |
| History by Letter - F | 0 | - | 4.18 | 105,345 |
| History by Letter - O | 0 | - | 4.30 | 92,254 |
| History by Letter - P | 0 | - | 4.37 | 99,557 |
| History by Letter - Q | 0 | - | 4.35 | 74,813 |
| History by Letter - R | 0 | - | 4.22 | 113,859 |
| History by Letter - T | 0 | - | 4.40 | 97,551 |
| History by Letter - U | 0 | - | 4.18 | 93,433 |
| History by Letter - V | 0 | - | 4.28 | 75,382 |
| History by Letter - Y | 0 | - | 4.28 | 81,662 |
| History by Letter - Z | 0 | - | 4.21 | 72,392 |
| The 3rd and 4th Century | 0 | - | 4.53 | 20,476 |
| Empires A-Z | 0 | - | 4.50 | 40,482 |
| Same Start and End Letter - History #1 | 0 | - | 4.12 | 23,581 |
| Same Start and End Letter - History #2 | 0 | - | 4.09 | 23,666 |
| Geography by Letter - T | 0 | - | 4.82 | 126,328 |
| People in History A-Z #1 | 0 | - | 4.66 | 92,092 |
| People in History A-Z #2 | 0 | - | 4.46 | 50,787 |
| People in History A-Z #3 | 0 | - | 4.47 | 42,781 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 71,124 |
| Geography by Letter on the World Map - A | 0 | - | 4.83 | 94,542 |
| Geography by Letter on the World Map - C | 0 | - | 4.84 | 105,201 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 140,740 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 183,326 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 163,125 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 178,626 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 289,046 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 169,505 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.82 | 66,679 |
| 20th Century A-Z | 0 | - | 4.49 | 39,545 |
| 19th Century A-Z | 0 | - | 4.79 | 35,298 |
| 18th Century A-Z | 0 | - | 4.59 | 32,325 |
| Famous Firsts #1 | 0 | - | 4.42 | 66,233 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 67,292 |
| Invasions | 0 | - | 4.70 | 90,497 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 217,275 |
| Name an Official Language A-Z | 0 | - | 4.92 | 137,381 |
| Normandy D-Day Beaches | 0 | - | 4.81 | 37,168 |
| Territory Changes in World War I | 0 | - | 4.87 | 41,067 |
| Famous Empires in History | 0 | - | 4.83 | 106,316 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 110,028 |
| People Depicted in Paintings | 0 | - | 4.56 | 41,665 |
| 16th Century A-Z | 0 | - | 4.54 | 16,097 |
| 15th Century A-Z | 0 | - | 4.44 | 19,984 |
| Brand Logos That Start with A | 0 | - | 4.52 | 58,268 |
| Brand Logos That Start With B | 0 | - | 4.44 | 50,109 |
| Brand Logos That Start With M | 0 | - | 4.41 | 50,896 |
| NATO Military Alphabet | 0 | - | 4.98 | 507,587 |
| Geography by Letter - A | 0 | - | 4.66 | 195,351 |
| Geography by Letter - B | 0 | - | 4.55 | 168,530 |
| Geography by Letter - H | 0 | - | 4.75 | 136,640 |
| Geography by Letter - C | 0 | - | 4.50 | 144,652 |
| Geography by Letter - D | 0 | - | 4.47 | 137,921 |
| Geography by Letter - I | 0 | - | 4.43 | 112,069 |
| Geography by Letter - K | 0 | - | 4.54 | 108,004 |
| Geography by Letter - L | 0 | - | 4.45 | 137,012 |
| Geography by Letter - M | 0 | - | 4.47 | 107,477 |
| Geography by Letter - N | 0 | - | 4.53 | 116,641 |
| Geography by Letter - P | 0 | - | 4.46 | 164,135 |
| Geography by Letter - R | 0 | - | 4.43 | 115,938 |
| Geography by Letter - S #1 | 0 | - | 4.79 | 118,044 |
| Geography by Letter - U | 0 | - | 4.52 | 120,345 |
| Geography by Letter - W | 0 | - | 4.43 | 97,963 |
| Asian Geography By Letter - K | 0 | - | 4.76 | 55,965 |
| A to Z: Musical Terms | 0 | - | 4.44 | 38,106 |
| Geography A-Z #2 | 0 | - | 4.46 | 49,835 |
| Geography A-Z #5 | 0 | - | 4.42 | 35,115 |
| Geography A-Z #1 | 0 | - | 4.55 | 66,412 |
| Movies that Start with G | 0 | - | 4.49 | 65,156 |
| Movies that Start with I | 0 | - | 4.41 | 62,060 |
| WWII A-Z #1 | 0 | - | 4.79 | 95,127 |
| WWII A-Z #2 | 0 | - | 4.47 | 50,721 |
| Famous Battles Quiz | 0 | - | 4.25 | 46,911 |
| Name the War Quiz | 0 | - | 4.39 | 191,716 |
| Famous U.S. Generals | 0 | - | 4.25 | 37,127 |
| Religions by Country of Origin Quiz | 0 | - | 4.29 | 73,170 |
| Famous Families #1 | 0 | - | 4.27 | 80,174 |
| Names for Warriors | 0 | - | 4.40 | 34,806 |
| Famous Firsts #2 | 0 | - | 4.01 | 79,104 |
| People in History A-Z #5 | 0 | - | 4.08 | 30,198 |
| People in History A-Z #4 | 0 | - | 4.13 | 21,500 |
| Former Countries by Territory Map | 0 | - | 4.96 | 87,599 |
| Empires by Maps | 0 | - | 4.98 | 97,481 |
| Art Works Picture Quiz #1 | 0 | - | 4.50 | 97,746 |
| Art Works Picture Quiz #2 | 0 | - | 4.47 | 87,132 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 47,188 |
| The 7 Wonders of the Ancient World | 0 | - | 4.81 | 65,836 |
| The 15th Century | 0 | - | 4.42 | 43,092 |
| The 14th Century | 0 | - | 4.53 | 40,948 |
| The 13th Century | 0 | - | 4.44 | 34,789 |
| The 11th and 12th Century | 0 | - | 4.53 | 46,755 |
| 14th Century A-Z | 0 | - | 4.33 | 15,940 |
| 17th Century A-Z | 0 | - | 4.61 | 24,758 |
| Military History A-Z | 0 | - | 4.17 | 19,798 |
| Ye Olde Professions | 0 | - | 4.71 | 145,922 |
| Countries by Military Spending | 0 | - | 4.93 | 162,158 |
| 100 Most Common English Words | 0 | - | 4.90 | 1,191,712 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.91 | 99,501 |
| Animals that Start with L | 0 | - | 4.44 | 95,324 |
| Animals that Start with P | 0 | - | 4.42 | 80,720 |
| Animals that Start with S | 0 | - | 4.49 | 81,393 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 80,285 |
| World Cities A-Z #1 | 0 | - | 4.54 | 59,414 |
| Islands A-Z | 0 | - | 4.47 | 107,261 |
| World Cities A-Z #2 | 0 | - | 4.46 | 52,017 |
| Human Body A-Z | 0 | - | 4.49 | 109,625 |
| Africa A-Z | 0 | - | 4.55 | 44,124 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 43,273 |
| Ethnic Groups A-Z | 0 | - | 4.58 | 38,782 |
| Metals of Antiquity | 0 | - | 4.94 | 86,440 |
| Space Exploration Trivia | 0 | - | 4.36 | 33,717 |
| Oldest Things | 0 | - | 3.96 | 64,793 |
| Famous Homes - Who Lived There? | 0 | - | 4.07 | 26,251 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 13,455 |
| Years in History #1 - Multiple Choice | 0 | - | 4.84 | 63,998 |
| Brand Logos That Start With D | 0 | - | 4.35 | 51,389 |
| Brand Logos That Start With C | 0 | - | 4.14 | 41,994 |
| Brand Logos That Start With L | 0 | - | 4.36 | 49,569 |
| Brand Logos That Start With S | 0 | - | 4.37 | 46,988 |
| Most Common English Verbs - Extreme | 0 | - | 4.95 | 140,144 |
| Disney A-Z | 0 | - | 4.40 | 79,366 |
| Classic Novels by Plot #2 | 0 | - | 4.81 | 31,602 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.41 | 14,071 |
| Companies A-Z | 0 | - | 4.31 | 41,584 |
| Top Five Exporting Partners by Country | 0 | - | 4.85 | 62,775 |
| Religion A-Z #1 | 0 | - | 4.31 | 59,062 |
| Religion A-Z #2 | 0 | - | 4.50 | 26,635 |
| Geography by Letter - E | 0 | - | 4.40 | 135,582 |
| Geography by Letter - G | 0 | - | 4.36 | 115,406 |
| Geography by Letter - F | 0 | - | 4.27 | 126,393 |
| Geography by Letter - J | 0 | - | 4.36 | 112,701 |
| Geography by Letter - O | 0 | - | 4.38 | 119,102 |
| Geography by Letter - V | 0 | - | 4.38 | 98,172 |
| Geography by Letter - Y | 0 | - | 4.35 | 93,251 |
| Geography by Letter - Z | 0 | - | 4.05 | 64,885 |
| Geography by Letter - Q | 0 | - | 4.37 | 61,331 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.20 | 33,535 |
| The Americas Geography by Letter - B | 0 | - | 4.50 | 49,193 |
| The Americas Geography by Letter - S | 0 | - | 4.56 | 41,780 |
| Video Games A-Z | 0 | - | 4.04 | 35,779 |
| Geography A-Z #3 | 0 | - | 4.21 | 37,060 |
| Middle East A-Z | 0 | - | 4.46 | 43,532 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.44 | 41,804 |
| Movies that Start with A | 0 | - | 4.12 | 58,908 |
| Movies that Start with C | 0 | - | 4.30 | 58,393 |
| Movies that Start with B | 0 | - | 4.37 | 81,232 |
| Movies that Start with D | 0 | - | 4.36 | 65,855 |
| Movies that Start with E | 0 | - | 4.16 | 65,756 |
| Movies that Start with J | 0 | - | 4.22 | 73,020 |
| Movies that Start with L | 0 | - | 4.17 | 58,082 |
| Movies that Start with M | 0 | - | 4.27 | 46,302 |
| Movies that Start with N | 0 | - | 4.06 | 39,514 |
| Movies that Start with P | 0 | - | 4.25 | 52,223 |
| Movies that Start with R | 0 | - | 4.16 | 44,141 |
| Movies that Start with W | 0 | - | 4.06 | 42,690 |
| Movies that Start with T | 0 | - | 4.34 | 47,108 |
| Movies that Start with S | 0 | - | 4.37 | 54,127 |
| Movies that Start with F | 0 | - | 4.15 | 66,236 |
| Music by Letter - F | 0 | - | 4.45 | 25,081 |
| Music by Letter - P | 0 | - | 4.41 | 18,105 |
| Music by Letter - A | 0 | - | 4.60 | 29,143 |
| Google What's the Difference? - History | 0 | - | 4.21 | 43,951 |
| Cradles of Civilization | 0 | - | 4.42 | 33,147 |
| Mythical Creatures Quiz #1 | 0 | - | 4.91 | 663,322 |
| Art Works Picture Quiz #3 | 0 | - | 4.39 | 41,741 |
| Notable People of WWII | 0 | - | 4.53 | 81,107 |
| WWII Trivia #2 | 0 | - | 4.53 | 96,649 |
| World War I Quiz | 0 | - | 4.79 | 93,934 |
| WWI A-Z | 0 | - | 4.48 | 35,839 |
| Biggest Nations and Empires Ever | 0 | - | 4.55 | 135,472 |
| Famous Explorers | 0 | - | 4.65 | 33,041 |
| Answers by Time Period | 0 | - | 4.50 | 43,119 |
| Territorial Accessions | 0 | - | 4.43 | 32,529 |
| History of France Quiz | 0 | - | 4.55 | 40,100 |
| Star Wars A-Z | 0 | - | 4.44 | 80,810 |
| Musical Acts by Letter - J | 0 | - | 4.20 | 72,621 |
| Musical Acts by Letter - M | 0 | - | 4.18 | 85,701 |
| Musical Acts by Letter - N | 0 | - | 4.15 | 63,827 |
| Musical Acts by Letter - P | 0 | - | 4.19 | 55,483 |
| Musical Acts by Letter - R | 0 | - | 4.25 | 72,151 |
| Musical Acts by Letter - T | 0 | - | 4.01 | 56,087 |
| Musical Acts by Letter - A | 0 | - | 4.27 | 75,670 |
| Musical Acts by Letter - B | 0 | - | 4.30 | 66,813 |
| Musical Acts by Letter - C | 0 | - | 4.39 | 54,907 |
| Musical Acts by Letter - D | 0 | - | 4.12 | 48,491 |
| Musical Acts by Letter - E | 0 | - | 4.38 | 56,660 |
