| History by Letter - A | 0 | - | 4.51 | 152,069 |
| History by Letter - B | 0 | - | 4.45 | 171,220 |
| History by Letter - C | 0 | - | 4.69 | 170,254 |
| History by Letter - E | 0 | - | 4.51 | 139,803 |
| History by Letter - G | 0 | - | 4.45 | 121,407 |
| History by Letter - H | 0 | - | 4.45 | 135,835 |
| History by Letter - J | 0 | - | 4.51 | 153,194 |
| History by Letter - N | 0 | - | 4.44 | 103,365 |
| History by Letter - S | 0 | - | 4.47 | 93,649 |
| History by Letter - W | 0 | - | 4.45 | 108,697 |
| History by Letter - M | 0 | - | 4.54 | 119,070 |
| History by Letter - K | 0 | - | 4.50 | 100,804 |
| History by Letter - L | 0 | - | 4.49 | 111,480 |
| History by Letter - I | 0 | - | 4.46 | 103,651 |
| History by Letter - D | 0 | - | 4.39 | 136,848 |
| History by Letter - F | 0 | - | 4.18 | 113,661 |
| History by Letter - O | 0 | - | 4.31 | 99,028 |
| History by Letter - P | 0 | - | 4.38 | 107,317 |
| History by Letter - Q | 0 | - | 4.34 | 79,956 |
| History by Letter - R | 0 | - | 4.26 | 121,622 |
| History by Letter - T | 0 | - | 4.39 | 104,847 |
| History by Letter - U | 0 | - | 4.19 | 100,214 |
| History by Letter - V | 0 | - | 4.27 | 80,341 |
| History by Letter - Y | 0 | - | 4.27 | 86,918 |
| History by Letter - Z | 0 | - | 4.18 | 76,721 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,109 |
| Empires A-Z | 0 | - | 4.51 | 44,795 |
| Same Start and End Letter - History #1 | 0 | - | 4.16 | 24,661 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,532 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 128,592 |
| Geography by Letter - T | 0 | - | 4.84 | 152,350 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,571 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,797 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,948 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,222 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 106,852 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,691 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,867 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,352 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,686 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,328 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,331 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,114 |
| 20th Century A-Z | 0 | - | 4.50 | 53,147 |
| 19th Century A-Z | 0 | - | 4.77 | 46,718 |
| 18th Century A-Z | 0 | - | 4.54 | 42,630 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,525 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,895 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,790 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,734 |
| Name an Official Language A-Z | 0 | - | 4.90 | 174,680 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,096 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,206 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,875 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,377 |
| 16th Century A-Z | 0 | - | 4.58 | 24,372 |
| 15th Century A-Z | 0 | - | 4.49 | 23,385 |
| 17th Century A-Z | 0 | - | 4.78 | 34,159 |
| NATO Military Alphabet | 0 | - | 4.98 | 553,905 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 797,702 |
| Geography by Letter - A | 0 | - | 4.74 | 210,031 |
| Geography by Letter - B | 0 | - | 4.56 | 183,203 |
| Geography by Letter - H | 0 | - | 4.69 | 149,234 |
| Geography by Letter - C | 0 | - | 4.47 | 157,505 |
| Geography by Letter - D | 0 | - | 4.50 | 149,441 |
| Geography by Letter - E | 0 | - | 4.42 | 146,600 |
| Geography by Letter - I | 0 | - | 4.42 | 121,165 |
| Geography by Letter - K | 0 | - | 4.53 | 117,287 |
| Geography by Letter - L | 0 | - | 4.43 | 147,572 |
| Geography by Letter - M | 0 | - | 4.49 | 117,586 |
| Geography by Letter - N | 0 | - | 4.51 | 126,197 |
| Geography by Letter - P | 0 | - | 4.47 | 175,100 |
| Geography by Letter - R | 0 | - | 4.43 | 130,278 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,532 |
| Geography by Letter - U | 0 | - | 4.54 | 142,012 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,970 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,026 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,672 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,179 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,323 |
| 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 | 69,200 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,158 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,718 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,354 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,307 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,791 |
| Name the War | 0 | - | 4.37 | 200,726 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,400 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,825 |
| Famous Families #1 | 0 | - | 4.20 | 83,389 |
| Names for Warriors | 0 | - | 4.40 | 36,785 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,913 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,476 |
| Empires by Maps | 0 | - | 4.98 | 118,351 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,438 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,616 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,524 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,193 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,071 |
| The 15th Century | 0 | - | 4.43 | 51,061 |
| The 14th Century | 0 | - | 4.55 | 49,168 |
| The 13th Century | 0 | - | 4.48 | 43,146 |
| The 11th and 12th Century | 0 | - | 4.53 | 55,944 |
| 14th Century A-Z | 0 | - | 4.40 | 23,691 |
| Military History A-Z | 0 | - | 4.20 | 21,034 |
| Ye Olde Professions | 0 | - | 4.67 | 155,683 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,193 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,319 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,580 |
| Countries by Military Spending | 0 | - | 4.93 | 176,351 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,333 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,481 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 119,652 |
| Animals that Start with L | 0 | - | 4.47 | 101,221 |
| Animals that Start with P | 0 | - | 4.45 | 85,619 |
| Animals that Start with S | 0 | - | 4.49 | 86,778 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,597 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,544 |
| World Cities A-Z by Clue #1 | 0 | - | 4.54 | 65,670 |
| Islands A-Z | 0 | - | 4.46 | 116,715 |
| World Cities A-Z by Clue #2 | 0 | - | 4.44 | 57,188 |
| Human Body A-Z | 0 | - | 4.51 | 128,321 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,002 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,788 |
| Africa A-Z | 0 | - | 4.57 | 46,357 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,481 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,036 |
| Metals of Antiquity | 0 | - | 4.94 | 92,875 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,124 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,169 |
| WWI... or WWII? | 0 | - | 4.85 | 140,567 |
| Oldest Things | 0 | - | 3.92 | 65,587 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,758 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,841 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,486 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,639 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,748 |
| Disney A-Z | 0 | - | 4.37 | 86,108 |
| Literature by Letter - A | 0 | - | 4.23 | 31,752 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,066 |
| Companies A-Z | 0 | - | 4.30 | 42,605 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,829 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,472 |
| Religion A-Z #2 | 0 | - | 4.40 | 36,802 |
| Geography by Letter - G | 0 | - | 4.35 | 125,429 |
| Geography by Letter - F | 0 | - | 4.27 | 137,003 |
| Geography by Letter - J | 0 | - | 4.34 | 122,128 |
| Geography by Letter - O | 0 | - | 4.37 | 128,948 |
| Geography by Letter - V | 0 | - | 4.39 | 120,800 |
| Geography by Letter - W | 0 | - | 4.39 | 114,153 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,623 |
| Geography by Letter - Z | 0 | - | 4.11 | 80,993 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,838 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,105 |
| Video Games A-Z | 0 | - | 4.08 | 38,674 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,063 |
| Middle East A-Z | 0 | - | 4.47 | 45,773 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,139 |
| Movies that Start with A | 0 | - | 4.13 | 61,626 |
| Movies that Start with C | 0 | - | 4.30 | 61,563 |
| Movies that Start with B | 0 | - | 4.35 | 84,895 |
| Movies that Start with D | 0 | - | 4.34 | 68,214 |
| Movies that Start with E | 0 | - | 4.13 | 68,159 |
| Movies that Start with J | 0 | - | 4.18 | 75,903 |
| Movies that Start with L | 0 | - | 4.16 | 60,216 |
| Movies that Start with M | 0 | - | 4.28 | 48,051 |
| Movies that Start with N | 0 | - | 4.02 | 41,099 |
| Movies that Start with P | 0 | - | 4.25 | 53,991 |
| Movies that Start with R | 0 | - | 4.17 | 46,430 |
| Movies that Start with W | 0 | - | 4.07 | 44,122 |
| Movies that Start with T | 0 | - | 4.33 | 49,099 |
| Movies that Start with S | 0 | - | 4.35 | 56,255 |
| Movies that Start with F | 0 | - | 4.13 | 68,626 |
| Music by Letter - F | 0 | - | 4.48 | 26,809 |
| Music by Letter - A | 0 | - | 4.61 | 31,171 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,625 |
| Brand Logos That Start With C | 0 | - | 4.17 | 48,993 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,152 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,648 |
| Influential Women in History | 0 | - | 4.42 | 34,927 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,010 |
| Cradles of Civilization | 0 | - | 4.46 | 38,991 |
| Materials From History #1 | 0 | - | 4.56 | 50,548 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,198 |
| Notable People of WWII | 0 | - | 4.53 | 85,307 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,403 |
| World War I Quiz | 0 | - | 4.78 | 100,223 |
| WWI A-Z | 0 | - | 4.50 | 38,010 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,119 |
| Famous Explorers | 0 | - | 4.58 | 35,927 |
| Famous Empires by Description | 0 | - | 4.70 | 117,504 |
| Answers by Time Period | 0 | - | 4.63 | 55,253 |
| History of France | 0 | - | 4.59 | 55,973 |
| Star Wars A-Z | 0 | - | 4.46 | 87,136 |
| Musical Acts by Letter - J | 0 | - | 4.20 | 77,157 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 92,927 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,062 |
| Musical Acts by Letter - P | 0 | - | 4.24 | 65,142 |
