| History by Letter - A | 0 | - | 4.51 | 153,164 |
| History by Letter - B | 0 | - | 4.45 | 172,455 |
| History by Letter - C | 0 | - | 4.70 | 171,720 |
| History by Letter - E | 0 | - | 4.51 | 140,805 |
| History by Letter - G | 0 | - | 4.46 | 122,290 |
| History by Letter - H | 0 | - | 4.45 | 136,909 |
| History by Letter - J | 0 | - | 4.51 | 154,224 |
| History by Letter - N | 0 | - | 4.45 | 104,202 |
| History by Letter - S | 0 | - | 4.47 | 94,498 |
| History by Letter - W | 0 | - | 4.45 | 109,672 |
| History by Letter - M | 0 | - | 4.54 | 119,993 |
| History by Letter - K | 0 | - | 4.50 | 101,486 |
| History by Letter - L | 0 | - | 4.50 | 112,231 |
| History by Letter - I | 0 | - | 4.46 | 104,430 |
| History by Letter - D | 0 | - | 4.40 | 137,940 |
| History by Letter - F | 0 | - | 4.18 | 114,577 |
| History by Letter - O | 0 | - | 4.32 | 99,630 |
| History by Letter - P | 0 | - | 4.36 | 107,971 |
| History by Letter - Q | 0 | - | 4.34 | 80,430 |
| History by Letter - R | 0 | - | 4.26 | 122,328 |
| History by Letter - T | 0 | - | 4.39 | 105,398 |
| History by Letter - U | 0 | - | 4.19 | 100,907 |
| History by Letter - V | 0 | - | 4.27 | 80,865 |
| History by Letter - Y | 0 | - | 4.27 | 87,384 |
| History by Letter - Z | 0 | - | 4.20 | 77,149 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,245 |
| Empires A-Z | 0 | - | 4.52 | 45,163 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,746 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,674 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 148,616 |
| Geography by Letter - T | 0 | - | 4.84 | 154,004 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,037 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,117 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,195 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,252 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,961 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,526 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,599 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,220 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,270 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,818 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,463 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,840 |
| 20th Century A-Z | 0 | - | 4.50 | 53,724 |
| 19th Century A-Z | 0 | - | 4.77 | 47,289 |
| 18th Century A-Z | 0 | - | 4.54 | 43,169 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,076 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,408 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,955 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,068 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,960 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,430 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,759 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,292 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,639 |
| 16th Century A-Z | 0 | - | 4.58 | 24,900 |
| 15th Century A-Z | 0 | - | 4.49 | 23,925 |
| 14th Century A-Z | 0 | - | 4.41 | 24,381 |
| 17th Century A-Z | 0 | - | 4.78 | 34,634 |
| NATO Military Alphabet | 0 | - | 4.98 | 559,906 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 802,426 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,990 |
| Geography by Letter - A | 0 | - | 4.74 | 211,732 |
| Geography by Letter - B | 0 | - | 4.56 | 184,752 |
| Geography by Letter - H | 0 | - | 4.69 | 150,429 |
| Geography by Letter - C | 0 | - | 4.47 | 158,824 |
| Geography by Letter - D | 0 | - | 4.50 | 150,641 |
| Geography by Letter - E | 0 | - | 4.42 | 147,722 |
| Geography by Letter - I | 0 | - | 4.42 | 122,109 |
| Geography by Letter - K | 0 | - | 4.53 | 118,452 |
| Geography by Letter - L | 0 | - | 4.43 | 148,633 |
| Geography by Letter - M | 0 | - | 4.49 | 118,738 |
| Geography by Letter - N | 0 | - | 4.51 | 127,307 |
| Geography by Letter - P | 0 | - | 4.47 | 176,146 |
| Geography by Letter - R | 0 | - | 4.43 | 131,779 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,679 |
| Geography by Letter - U | 0 | - | 4.53 | 143,208 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,165 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,653 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,335 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,922 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,361 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,591 |
| Movies that Start with G | 0 | - | 4.49 | 68,544 |
| Movies that Start with I | 0 | - | 4.41 | 65,164 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,311 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,830 |
| WWII A-Z #1 | 0 | - | 4.73 | 102,979 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,661 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,990 |
| Name the War | 0 | - | 4.37 | 201,642 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,539 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,059 |
| Famous Families #1 | 0 | - | 4.20 | 83,601 |
| Names for Warriors | 0 | - | 4.40 | 36,932 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,030 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,039 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,770 |
| Empires by Maps | 0 | - | 4.98 | 120,393 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,109 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,301 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,742 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,711 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,375 |
| The 15th Century | 0 | - | 4.43 | 51,227 |
| The 14th Century | 0 | - | 4.55 | 49,316 |
| The 13th Century | 0 | - | 4.48 | 43,285 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,128 |
| Military History A-Z | 0 | - | 4.20 | 21,159 |
| Ye Olde Professions | 0 | - | 4.67 | 156,733 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,361 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,473 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,686 |
| Countries by Military Spending | 0 | - | 4.93 | 177,693 |
| 100 Most Common English Words | 0 | - | 4.89 | 1,316,335 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,093 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,779 |
| Animals that Start with L | 0 | - | 4.47 | 101,894 |
| Animals that Start with P | 0 | - | 4.45 | 86,126 |
| Animals that Start with S | 0 | - | 4.49 | 87,338 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,446 |
| Geography by Letter on the World Map - C | 0 | - | 4.79 | 117,538 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,128 |
| Islands A-Z | 0 | - | 4.46 | 124,426 |
| Human Body A-Z | 0 | - | 4.51 | 129,162 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,550 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,603 |
| Africa A-Z | 0 | - | 4.57 | 46,600 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,748 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,292 |
| Metals of Antiquity | 0 | - | 4.95 | 93,423 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,695 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,359 |
| WWI... or WWII? | 0 | - | 4.85 | 142,204 |
| Oldest Things | 0 | - | 3.92 | 65,656 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,821 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,645 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,144 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,292 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,158 |
| Disney A-Z | 0 | - | 4.37 | 87,105 |
| Literature by Letter - A | 0 | - | 4.24 | 32,113 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,276 |
| Companies A-Z | 0 | - | 4.30 | 42,698 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,136 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,627 |
| Geography by Letter - G | 0 | - | 4.33 | 126,386 |
| Geography by Letter - F | 0 | - | 4.27 | 137,944 |
| Geography by Letter - J | 0 | - | 4.34 | 123,007 |
| Geography by Letter - O | 0 | - | 4.37 | 129,842 |
| Geography by Letter - V | 0 | - | 4.39 | 121,849 |
| Geography by Letter - W | 0 | - | 4.39 | 114,922 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,607 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,714 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,556 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,263 |
| Video Games A-Z | 0 | - | 4.08 | 38,990 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,257 |
| Middle East A-Z | 0 | - | 4.47 | 46,012 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,364 |
| Movies that Start with A | 0 | - | 4.13 | 61,881 |
| Movies that Start with C | 0 | - | 4.30 | 61,860 |
| Movies that Start with B | 0 | - | 4.36 | 85,229 |
| Movies that Start with D | 0 | - | 4.34 | 68,443 |
| Movies that Start with E | 0 | - | 4.13 | 68,380 |
| Movies that Start with J | 0 | - | 4.18 | 76,169 |
| Movies that Start with L | 0 | - | 4.16 | 60,437 |
| Movies that Start with M | 0 | - | 4.28 | 48,240 |
| Movies that Start with N | 0 | - | 4.02 | 41,259 |
| Movies that Start with P | 0 | - | 4.25 | 54,158 |
| Movies that Start with R | 0 | - | 4.17 | 46,655 |
| Movies that Start with W | 0 | - | 4.07 | 44,273 |
| Movies that Start with T | 0 | - | 4.34 | 49,308 |
| Movies that Start with S | 0 | - | 4.35 | 56,475 |
| Movies that Start with F | 0 | - | 4.13 | 68,860 |
| Music by Letter - F | 0 | - | 4.48 | 27,002 |
| Music by Letter - A | 0 | - | 4.61 | 31,388 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,994 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,549 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,660 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,156 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,611 |
| Influential Women in History | 0 | - | 4.42 | 35,578 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,234 |
| Cradles of Civilization | 0 | - | 4.46 | 39,629 |
| Materials From History #1 | 0 | - | 4.56 | 51,543 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,550 |
| Notable People of WWII | 0 | - | 4.53 | 85,913 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,965 |
| World War I Quiz | 0 | - | 4.78 | 101,263 |
| WWI A-Z | 0 | - | 4.50 | 38,335 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,876 |
| Famous Explorers | 0 | - | 4.58 | 36,157 |
| Famous Empires by Description | 0 | - | 4.73 | 118,437 |
| Answers by Time Period | 0 | - | 4.63 | 55,564 |
| History of France | 0 | - | 4.59 | 56,959 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,741 |
| Star Wars A-Z | 0 | - | 4.46 | 88,229 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,463 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,372 |
