| Empires A-Z | 0 | - | 4.51 | 44,774 |
| History by Letter - A | 0 | - | 4.51 | 152,017 |
| History by Letter - B | 0 | - | 4.45 | 171,160 |
| History by Letter - C | 0 | - | 4.69 | 170,181 |
| History by Letter - E | 0 | - | 4.51 | 139,753 |
| History by Letter - G | 0 | - | 4.45 | 121,367 |
| History by Letter - H | 0 | - | 4.45 | 135,794 |
| History by Letter - J | 0 | - | 4.51 | 153,143 |
| History by Letter - N | 0 | - | 4.44 | 103,331 |
| History by Letter - S | 0 | - | 4.47 | 93,619 |
| History by Letter - W | 0 | - | 4.45 | 108,665 |
| History by Letter - M | 0 | - | 4.54 | 119,028 |
| History by Letter - K | 0 | - | 4.50 | 100,771 |
| History by Letter - L | 0 | - | 4.49 | 111,443 |
| History by Letter - I | 0 | - | 4.46 | 103,619 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 128,476 |
| Geography by Letter - T | 0 | - | 4.84 | 152,194 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,534 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,772 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,930 |
| History by Letter - D | 0 | - | 4.39 | 136,817 |
| History by Letter - F | 0 | - | 4.18 | 113,632 |
| History by Letter - O | 0 | - | 4.31 | 98,999 |
| History by Letter - P | 0 | - | 4.38 | 107,282 |
| History by Letter - Q | 0 | - | 4.34 | 79,935 |
| History by Letter - R | 0 | - | 4.26 | 121,590 |
| History by Letter - T | 0 | - | 4.39 | 104,803 |
| History by Letter - U | 0 | - | 4.19 | 100,179 |
| History by Letter - V | 0 | - | 4.27 | 80,324 |
| History by Letter - Y | 0 | - | 4.27 | 86,898 |
| History by Letter - Z | 0 | - | 4.18 | 76,704 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,102 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,175 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 106,807 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,653 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,806 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,319 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,616 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,279 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,288 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.82 | 72,077 |
| 20th Century A-Z | 0 | - | 4.50 | 53,127 |
| 19th Century A-Z | 0 | - | 4.77 | 46,706 |
| 18th Century A-Z | 0 | - | 4.54 | 42,617 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,498 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,875 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,778 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,606 |
| Name an Official Language A-Z | 0 | - | 4.90 | 174,615 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,079 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,186 |
| Same Start and End Letter - History #1 | 0 | - | 4.16 | 24,651 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,517 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,847 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,368 |
| 16th Century A-Z | 0 | - | 4.58 | 24,364 |
| 15th Century A-Z | 0 | - | 4.49 | 23,379 |
| 17th Century A-Z | 0 | - | 4.78 | 34,148 |
| NATO Military Alphabet | 0 | - | 4.98 | 553,594 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 797,450 |
| Geography by Letter - A | 0 | - | 4.74 | 209,938 |
| Geography by Letter - B | 0 | - | 4.56 | 183,108 |
| Geography by Letter - H | 0 | - | 4.69 | 149,162 |
| Geography by Letter - C | 0 | - | 4.47 | 157,424 |
| Geography by Letter - D | 0 | - | 4.50 | 149,363 |
| Geography by Letter - E | 0 | - | 4.42 | 146,537 |
| Geography by Letter - I | 0 | - | 4.42 | 121,092 |
| Geography by Letter - K | 0 | - | 4.53 | 117,224 |
| Geography by Letter - L | 0 | - | 4.43 | 147,501 |
| Geography by Letter - M | 0 | - | 4.49 | 117,511 |
| Geography by Letter - N | 0 | - | 4.51 | 126,133 |
| Geography by Letter - P | 0 | - | 4.47 | 175,020 |
| Geography by Letter - R | 0 | - | 4.43 | 130,178 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,246 |
| Geography by Letter - U | 0 | - | 4.54 | 141,926 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,943 |
| A to Z: Musical Terms | 0 | - | 4.43 | 40,979 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,662 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,169 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,305 |
| Movies that Start with G | 0 | - | 4.48 | 68,221 |
| Movies that Start with I | 0 | - | 4.41 | 64,859 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,150 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,110 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,664 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,320 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,287 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,788 |
| Name the War Quiz | 0 | - | 4.37 | 200,675 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,394 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,809 |
| Famous Families #1 | 0 | - | 4.20 | 83,370 |
| Names for Warriors | 0 | - | 4.40 | 36,781 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,902 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,351 |
| Empires by Maps | 0 | - | 4.98 | 118,231 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,407 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,575 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,515 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,160 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,044 |
| 14th Century A-Z | 0 | - | 4.40 | 23,638 |
| Military History A-Z | 0 | - | 4.20 | 21,029 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,174 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,311 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,574 |
| Countries by Military Spending | 0 | - | 4.93 | 176,295 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,303,788 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,440 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 119,601 |
| Animals that Start with L | 0 | - | 4.47 | 101,207 |
| Animals that Start with P | 0 | - | 4.45 | 85,603 |
| Animals that Start with S | 0 | - | 4.49 | 86,769 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,556 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,502 |
| World Cities A-Z by Clue #1 | 0 | - | 4.61 | 65,130 |
| Islands A-Z | 0 | - | 4.46 | 116,671 |
| World Cities A-Z by Clue #2 | 0 | - | 4.43 | 56,727 |
| Human Body A-Z | 0 | - | 4.51 | 128,200 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 33,614 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,762 |
| Africa A-Z | 0 | - | 4.57 | 46,347 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,448 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,020 |
| Metals of Antiquity | 0 | - | 4.94 | 92,823 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,104 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,157 |
| Oldest Things | 0 | - | 3.92 | 65,584 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,755 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,834 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,484 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,616 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,677 |
| Disney A-Z | 0 | - | 4.37 | 86,073 |
| Literature by Letter - A | 0 | - | 4.23 | 31,746 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,060 |
| Companies A-Z | 0 | - | 4.30 | 42,601 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,814 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,465 |
| Religion A-Z #2 | 0 | - | 4.40 | 36,792 |
| Geography by Letter - G | 0 | - | 4.35 | 125,369 |
| Geography by Letter - F | 0 | - | 4.27 | 136,943 |
| Geography by Letter - J | 0 | - | 4.34 | 122,061 |
| Geography by Letter - O | 0 | - | 4.37 | 128,886 |
| Geography by Letter - V | 0 | - | 4.39 | 120,432 |
| Geography by Letter - W | 0 | - | 4.39 | 114,079 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,550 |
| Geography by Letter - Z | 0 | - | 4.11 | 80,933 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,783 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,099 |
| Video Games A-Z | 0 | - | 4.08 | 38,657 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,054 |
| Middle East A-Z | 0 | - | 4.46 | 45,753 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,126 |
| Movies that Start with A | 0 | - | 4.13 | 61,610 |
| Movies that Start with C | 0 | - | 4.30 | 61,547 |
| Movies that Start with B | 0 | - | 4.35 | 84,874 |
| Movies that Start with D | 0 | - | 4.34 | 68,200 |
| Movies that Start with E | 0 | - | 4.13 | 68,144 |
| Movies that Start with J | 0 | - | 4.18 | 75,893 |
| Movies that Start with L | 0 | - | 4.16 | 60,201 |
| Movies that Start with M | 0 | - | 4.28 | 48,038 |
| Movies that Start with N | 0 | - | 4.02 | 41,089 |
| Movies that Start with P | 0 | - | 4.25 | 53,975 |
| Movies that Start with R | 0 | - | 4.17 | 46,419 |
| Movies that Start with W | 0 | - | 4.07 | 44,113 |
| Movies that Start with T | 0 | - | 4.33 | 49,088 |
| Movies that Start with S | 0 | - | 4.35 | 56,236 |
| Movies that Start with F | 0 | - | 4.13 | 68,616 |
| Music by Letter - F | 0 | - | 4.48 | 26,779 |
| Music by Letter - A | 0 | - | 4.61 | 31,155 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,577 |
| Brand Logos That Start With C | 0 | - | 4.17 | 48,962 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,100 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,597 |
| Influential Women in History | 0 | - | 4.42 | 34,908 |
| Google What's the Difference? - History | 0 | - | 4.20 | 45,997 |
| Cradles of Civilization | 0 | - | 4.46 | 38,968 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,055 |
| Notable People of WWII | 0 | - | 4.53 | 85,291 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,376 |
| World War I Quiz | 0 | - | 4.78 | 100,176 |
| WWI A-Z | 0 | - | 4.50 | 37,999 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,079 |
| Famous Explorers | 0 | - | 4.58 | 35,917 |
| Famous Empires by Description | 0 | - | 4.70 | 117,472 |
| Answers by Time Period | 0 | - | 4.63 | 55,231 |
| Star Wars A-Z | 0 | - | 4.46 | 87,086 |
| Musical Acts by Letter - J | 0 | - | 4.20 | 77,128 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 92,888 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,043 |
| Musical Acts by Letter - P | 0 | - | 4.24 | 65,124 |
| Musical Acts by Letter - R | 0 | - | 4.33 | 82,931 |
| Musical Acts by Letter - T | 0 | - | 4.15 | 67,500 |
| Musical Acts by Letter - A | 0 | - | 4.29 | 82,251 |
| Musical Acts by Letter - B | 0 | - | 4.32 | 72,859 |
| Musical Acts by Letter - C | 0 | - | 4.33 | 59,877 |
| Musical Acts by Letter - D | 0 | - | 4.13 | 52,823 |
| Musical Acts by Letter - E | 0 | - | 4.36 | 61,349 |
| Animals that Start with A | 0 | - | 4.26 | 111,185 |
