| Empires A-Z | 0 | - | 4.51 | 44,790 |
| History by Letter - A | 0 | - | 4.51 | 152,055 |
| History by Letter - B | 0 | - | 4.45 | 171,203 |
| History by Letter - C | 0 | - | 4.69 | 170,231 |
| History by Letter - E | 0 | - | 4.51 | 139,789 |
| History by Letter - G | 0 | - | 4.45 | 121,397 |
| History by Letter - H | 0 | - | 4.45 | 135,823 |
| History by Letter - J | 0 | - | 4.51 | 153,178 |
| History by Letter - N | 0 | - | 4.44 | 103,360 |
| History by Letter - S | 0 | - | 4.47 | 93,640 |
| History by Letter - W | 0 | - | 4.45 | 108,688 |
| History by Letter - M | 0 | - | 4.54 | 119,060 |
| History by Letter - K | 0 | - | 4.50 | 100,796 |
| History by Letter - L | 0 | - | 4.49 | 111,474 |
| History by Letter - I | 0 | - | 4.46 | 103,641 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 128,559 |
| Geography by Letter - T | 0 | - | 4.84 | 152,304 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,563 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,790 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,944 |
| History by Letter - D | 0 | - | 4.39 | 136,840 |
| History by Letter - F | 0 | - | 4.18 | 113,653 |
| History by Letter - O | 0 | - | 4.31 | 99,020 |
| History by Letter - P | 0 | - | 4.38 | 107,308 |
| History by Letter - Q | 0 | - | 4.34 | 79,951 |
| History by Letter - R | 0 | - | 4.26 | 121,609 |
| History by Letter - T | 0 | - | 4.39 | 104,840 |
| History by Letter - U | 0 | - | 4.19 | 100,202 |
| History by Letter - V | 0 | - | 4.27 | 80,336 |
| History by Letter - Y | 0 | - | 4.27 | 86,911 |
| History by Letter - Z | 0 | - | 4.18 | 76,716 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,105 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,209 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 106,840 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,682 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,853 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,345 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,666 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,314 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,321 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,101 |
| 20th Century A-Z | 0 | - | 4.50 | 53,142 |
| 19th Century A-Z | 0 | - | 4.77 | 46,711 |
| 18th Century A-Z | 0 | - | 4.54 | 42,626 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,518 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,887 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,788 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,700 |
| Name an Official Language A-Z | 0 | - | 4.90 | 174,666 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,095 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,198 |
| Same Start and End Letter - History #1 | 0 | - | 4.16 | 24,659 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,528 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,869 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,375 |
| 16th Century A-Z | 0 | - | 4.58 | 24,372 |
| 15th Century A-Z | 0 | - | 4.49 | 23,382 |
| 17th Century A-Z | 0 | - | 4.78 | 34,159 |
| NATO Military Alphabet | 0 | - | 4.98 | 553,843 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 797,669 |
| Geography by Letter - A | 0 | - | 4.74 | 210,004 |
| Geography by Letter - B | 0 | - | 4.56 | 183,176 |
| Geography by Letter - H | 0 | - | 4.69 | 149,212 |
| Geography by Letter - C | 0 | - | 4.47 | 157,484 |
| Geography by Letter - D | 0 | - | 4.50 | 149,419 |
| Geography by Letter - E | 0 | - | 4.42 | 146,583 |
| Geography by Letter - I | 0 | - | 4.42 | 121,142 |
| Geography by Letter - K | 0 | - | 4.53 | 117,267 |
| Geography by Letter - L | 0 | - | 4.43 | 147,553 |
| Geography by Letter - M | 0 | - | 4.49 | 117,563 |
| Geography by Letter - N | 0 | - | 4.51 | 126,177 |
| Geography by Letter - P | 0 | - | 4.47 | 175,078 |
| Geography by Letter - R | 0 | - | 4.43 | 130,246 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,463 |
| Geography by Letter - U | 0 | - | 4.54 | 141,984 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,963 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,009 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,671 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,177 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,320 |
| Movies that Start with G | 0 | - | 4.48 | 68,233 |
| Movies that Start with I | 0 | - | 4.41 | 64,871 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,191 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,146 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,703 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,349 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,304 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,791 |
| Name the War | 0 | - | 4.37 | 200,719 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,400 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,819 |
| Famous Families #1 | 0 | - | 4.20 | 83,387 |
| Names for Warriors | 0 | - | 4.40 | 36,785 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,911 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,444 |
| Empires by Maps | 0 | - | 4.98 | 118,322 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,432 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,609 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,523 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,186 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,068 |
| 14th Century A-Z | 0 | - | 4.40 | 23,677 |
| Military History A-Z | 0 | - | 4.20 | 21,034 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,189 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,319 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,577 |
| Countries by Military Spending | 0 | - | 4.93 | 176,340 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,220 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,472 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 119,639 |
| Animals that Start with L | 0 | - | 4.47 | 101,216 |
| Animals that Start with P | 0 | - | 4.45 | 85,613 |
| Animals that Start with S | 0 | - | 4.49 | 86,774 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,586 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,532 |
| World Cities A-Z by Clue #1 | 0 | - | 4.54 | 65,562 |
| Islands A-Z | 0 | - | 4.46 | 116,704 |
| World Cities A-Z by Clue #2 | 0 | - | 4.44 | 57,089 |
| Human Body A-Z | 0 | - | 4.51 | 128,286 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 33,918 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,783 |
| Africa A-Z | 0 | - | 4.57 | 46,356 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,470 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,034 |
| Metals of Antiquity | 0 | - | 4.94 | 92,858 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,120 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,164 |
| Oldest Things | 0 | - | 3.92 | 65,586 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,758 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,837 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,486 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,633 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,727 |
| Disney A-Z | 0 | - | 4.37 | 86,099 |
| Literature by Letter - A | 0 | - | 4.23 | 31,749 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,064 |
| Companies A-Z | 0 | - | 4.30 | 42,605 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,826 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,471 |
| Religion A-Z #2 | 0 | - | 4.40 | 36,798 |
| Geography by Letter - G | 0 | - | 4.35 | 125,407 |
| Geography by Letter - F | 0 | - | 4.27 | 136,984 |
| Geography by Letter - J | 0 | - | 4.34 | 122,110 |
| Geography by Letter - O | 0 | - | 4.37 | 128,925 |
| Geography by Letter - V | 0 | - | 4.39 | 120,699 |
| Geography by Letter - W | 0 | - | 4.39 | 114,131 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,598 |
| Geography by Letter - Z | 0 | - | 4.11 | 80,972 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,813 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,102 |
| Video Games A-Z | 0 | - | 4.08 | 38,670 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,063 |
| Middle East A-Z | 0 | - | 4.47 | 45,767 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,137 |
| Movies that Start with A | 0 | - | 4.13 | 61,625 |
| Movies that Start with C | 0 | - | 4.30 | 61,563 |
| Movies that Start with B | 0 | - | 4.35 | 84,893 |
| Movies that Start with D | 0 | - | 4.34 | 68,213 |
| Movies that Start with E | 0 | - | 4.13 | 68,159 |
| Movies that Start with J | 0 | - | 4.18 | 75,902 |
| Movies that Start with L | 0 | - | 4.16 | 60,214 |
| Movies that Start with M | 0 | - | 4.28 | 48,048 |
| Movies that Start with N | 0 | - | 4.02 | 41,097 |
| Movies that Start with P | 0 | - | 4.25 | 53,988 |
| Movies that Start with R | 0 | - | 4.17 | 46,427 |
| Movies that Start with W | 0 | - | 4.07 | 44,118 |
| Movies that Start with T | 0 | - | 4.33 | 49,096 |
| Movies that Start with S | 0 | - | 4.35 | 56,252 |
| Movies that Start with F | 0 | - | 4.13 | 68,626 |
| Music by Letter - F | 0 | - | 4.48 | 26,798 |
| Music by Letter - A | 0 | - | 4.61 | 31,167 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,610 |
| Brand Logos That Start With C | 0 | - | 4.17 | 48,980 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,143 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,631 |
| Influential Women in History | 0 | - | 4.42 | 34,920 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,004 |
| Cradles of Civilization | 0 | - | 4.46 | 38,985 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,163 |
| Notable People of WWII | 0 | - | 4.53 | 85,303 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,399 |
| World War I Quiz | 0 | - | 4.78 | 100,214 |
| WWI A-Z | 0 | - | 4.50 | 38,008 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,111 |
| Famous Explorers | 0 | - | 4.58 | 35,926 |
| Famous Empires by Description | 0 | - | 4.70 | 117,499 |
| Answers by Time Period | 0 | - | 4.63 | 55,249 |
| Star Wars A-Z | 0 | - | 4.46 | 87,124 |
| Musical Acts by Letter - J | 0 | - | 4.20 | 77,152 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 92,916 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,059 |
| Musical Acts by Letter - P | 0 | - | 4.24 | 65,139 |
| Musical Acts by Letter - R | 0 | - | 4.33 | 82,953 |
| Musical Acts by Letter - T | 0 | - | 4.15 | 67,524 |
| Musical Acts by Letter - A | 0 | - | 4.29 | 82,279 |
| Musical Acts by Letter - B | 0 | - | 4.32 | 72,886 |
| Musical Acts by Letter - C | 0 | - | 4.33 | 59,898 |
| Musical Acts by Letter - D | 0 | - | 4.13 | 52,841 |
| Musical Acts by Letter - E | 0 | - | 4.36 | 61,372 |
| Animals that Start with A | 0 | - | 4.26 | 111,197 |
