| Empires A-Z | 0 | - | 4.51 | 44,758 |
| History by Letter - A | 0 | - | 4.51 | 151,979 |
| History by Letter - B | 0 | - | 4.45 | 171,119 |
| History by Letter - C | 0 | - | 4.69 | 170,131 |
| History by Letter - E | 0 | - | 4.51 | 139,720 |
| History by Letter - G | 0 | - | 4.45 | 121,339 |
| History by Letter - H | 0 | - | 4.45 | 135,754 |
| History by Letter - J | 0 | - | 4.51 | 153,112 |
| History by Letter - N | 0 | - | 4.44 | 103,306 |
| History by Letter - S | 0 | - | 4.47 | 93,581 |
| History by Letter - W | 0 | - | 4.45 | 108,632 |
| History by Letter - M | 0 | - | 4.54 | 119,001 |
| History by Letter - K | 0 | - | 4.50 | 100,752 |
| History by Letter - L | 0 | - | 4.49 | 111,423 |
| History by Letter - I | 0 | - | 4.46 | 103,597 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 128,417 |
| Geography by Letter - T | 0 | - | 4.84 | 152,151 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,517 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,762 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,925 |
| History by Letter - D | 0 | - | 4.39 | 136,783 |
| History by Letter - F | 0 | - | 4.18 | 113,607 |
| History by Letter - O | 0 | - | 4.31 | 98,980 |
| History by Letter - P | 0 | - | 4.38 | 107,251 |
| History by Letter - Q | 0 | - | 4.34 | 79,915 |
| History by Letter - R | 0 | - | 4.26 | 121,561 |
| History by Letter - T | 0 | - | 4.39 | 104,645 |
| History by Letter - U | 0 | - | 4.19 | 100,154 |
| History by Letter - V | 0 | - | 4.27 | 80,298 |
| History by Letter - Y | 0 | - | 4.27 | 86,870 |
| History by Letter - Z | 0 | - | 4.18 | 76,681 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,098 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,138 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 106,772 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,634 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,761 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,299 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,557 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,241 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,251 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.82 | 72,051 |
| 20th Century A-Z | 0 | - | 4.50 | 53,114 |
| 19th Century A-Z | 0 | - | 4.77 | 46,699 |
| 18th Century A-Z | 0 | - | 4.54 | 42,612 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,478 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,864 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,776 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,555 |
| Name an Official Language A-Z | 0 | - | 4.90 | 174,568 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,068 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,172 |
| Same Start and End Letter - History #1 | 0 | - | 4.16 | 24,648 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,509 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,832 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,361 |
| 16th Century A-Z | 0 | - | 4.58 | 24,347 |
| 15th Century A-Z | 0 | - | 4.49 | 23,369 |
| 17th Century A-Z | 0 | - | 4.78 | 34,135 |
| NATO Military Alphabet | 0 | - | 4.98 | 553,374 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 797,317 |
| Geography by Letter - A | 0 | - | 4.74 | 209,903 |
| Geography by Letter - B | 0 | - | 4.56 | 183,076 |
| Geography by Letter - H | 0 | - | 4.69 | 149,136 |
| Geography by Letter - C | 0 | - | 4.47 | 157,395 |
| Geography by Letter - D | 0 | - | 4.50 | 149,345 |
| Geography by Letter - E | 0 | - | 4.42 | 146,519 |
| Geography by Letter - I | 0 | - | 4.42 | 121,077 |
| Geography by Letter - K | 0 | - | 4.53 | 117,210 |
| Geography by Letter - L | 0 | - | 4.43 | 147,478 |
| Geography by Letter - M | 0 | - | 4.49 | 117,490 |
| Geography by Letter - N | 0 | - | 4.51 | 126,110 |
| Geography by Letter - P | 0 | - | 4.47 | 174,999 |
| Geography by Letter - R | 0 | - | 4.43 | 130,150 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,224 |
| Geography by Letter - U | 0 | - | 4.54 | 141,899 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,938 |
| A to Z: Musical Terms | 0 | - | 4.43 | 40,971 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,656 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,161 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,295 |
| Movies that Start with G | 0 | - | 4.48 | 68,209 |
| Movies that Start with I | 0 | - | 4.41 | 64,846 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,119 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,075 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,629 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,300 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,274 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,781 |
| Name the War Quiz | 0 | - | 4.37 | 200,648 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,393 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,802 |
| Famous Families #1 | 0 | - | 4.20 | 83,363 |
| Names for Warriors | 0 | - | 4.40 | 36,777 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,897 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,302 |
| Empires by Maps | 0 | - | 4.98 | 118,144 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,379 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,544 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,503 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,142 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,033 |
| 14th Century A-Z | 0 | - | 4.40 | 23,585 |
| Military History A-Z | 0 | - | 4.20 | 21,028 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,167 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,302 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,570 |
| Countries by Military Spending | 0 | - | 4.93 | 176,234 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,303,318 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,394 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 119,558 |
| Animals that Start with L | 0 | - | 4.47 | 101,191 |
| Animals that Start with P | 0 | - | 4.45 | 85,588 |
| Animals that Start with S | 0 | - | 4.49 | 86,757 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,529 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,476 |
| World Cities A-Z by Clue #1 | 0 | - | 4.61 | 64,118 |
| Islands A-Z | 0 | - | 4.46 | 116,637 |
| World Cities A-Z by Clue #2 | 0 | - | 4.43 | 55,905 |
| Human Body A-Z | 0 | - | 4.51 | 128,178 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 32,962 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,747 |
| Africa A-Z | 0 | - | 4.57 | 46,343 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,438 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,013 |
| Metals of Antiquity | 0 | - | 4.94 | 92,811 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,081 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,144 |
| Oldest Things | 0 | - | 3.92 | 65,582 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,752 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,831 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,478 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,604 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,629 |
| Disney A-Z | 0 | - | 4.37 | 86,053 |
| Literature by Letter - A | 0 | - | 4.23 | 31,736 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,055 |
| Companies A-Z | 0 | - | 4.30 | 42,598 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,795 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,459 |
| Religion A-Z #2 | 0 | - | 4.40 | 36,786 |
| Geography by Letter - G | 0 | - | 4.35 | 125,348 |
| Geography by Letter - F | 0 | - | 4.27 | 136,922 |
| Geography by Letter - J | 0 | - | 4.34 | 122,048 |
| Geography by Letter - O | 0 | - | 4.37 | 128,864 |
| Geography by Letter - V | 0 | - | 4.39 | 120,402 |
| Geography by Letter - W | 0 | - | 4.39 | 114,064 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,529 |
| Geography by Letter - Z | 0 | - | 4.11 | 80,913 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,769 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,096 |
| Video Games A-Z | 0 | - | 4.08 | 38,640 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,045 |
| Middle East A-Z | 0 | - | 4.46 | 45,743 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,113 |
| Movies that Start with A | 0 | - | 4.13 | 61,601 |
| Movies that Start with C | 0 | - | 4.30 | 61,532 |
| Movies that Start with B | 0 | - | 4.35 | 84,860 |
| Movies that Start with D | 0 | - | 4.34 | 68,190 |
| Movies that Start with E | 0 | - | 4.13 | 68,134 |
| Movies that Start with J | 0 | - | 4.18 | 75,881 |
| Movies that Start with L | 0 | - | 4.16 | 60,191 |
| Movies that Start with M | 0 | - | 4.28 | 48,030 |
| Movies that Start with N | 0 | - | 4.02 | 41,080 |
| Movies that Start with P | 0 | - | 4.25 | 53,965 |
| Movies that Start with R | 0 | - | 4.17 | 46,406 |
| Movies that Start with W | 0 | - | 4.07 | 44,104 |
| Movies that Start with T | 0 | - | 4.33 | 49,073 |
| Movies that Start with S | 0 | - | 4.35 | 56,226 |
| Movies that Start with F | 0 | - | 4.13 | 68,603 |
| Music by Letter - F | 0 | - | 4.48 | 26,771 |
| Music by Letter - A | 0 | - | 4.61 | 31,151 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,539 |
| Brand Logos That Start With C | 0 | - | 4.17 | 48,945 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,057 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,563 |
| Influential Women in History | 0 | - | 4.42 | 34,893 |
| Google What's the Difference? - History | 0 | - | 4.20 | 45,983 |
| Cradles of Civilization | 0 | - | 4.46 | 38,947 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 703,949 |
| Notable People of WWII | 0 | - | 4.53 | 85,271 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,362 |
| World War I Quiz | 0 | - | 4.78 | 100,155 |
| WWI A-Z | 0 | - | 4.50 | 37,992 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,062 |
| Famous Explorers | 0 | - | 4.58 | 35,909 |
| Famous Empires by Description | 0 | - | 4.70 | 117,460 |
| Answers by Time Period | 0 | - | 4.63 | 55,222 |
| Star Wars A-Z | 0 | - | 4.46 | 87,059 |
| Musical Acts by Letter - J | 0 | - | 4.20 | 77,111 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 92,867 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,032 |
| Musical Acts by Letter - P | 0 | - | 4.24 | 65,111 |
| Musical Acts by Letter - R | 0 | - | 4.33 | 82,917 |
| Musical Acts by Letter - T | 0 | - | 4.15 | 67,483 |
| Musical Acts by Letter - A | 0 | - | 4.29 | 82,233 |
| Musical Acts by Letter - B | 0 | - | 4.32 | 72,843 |
| Musical Acts by Letter - C | 0 | - | 4.33 | 59,863 |
| Musical Acts by Letter - D | 0 | - | 4.13 | 52,807 |
| Musical Acts by Letter - E | 0 | - | 4.36 | 61,333 |
| Animals that Start with A | 0 | - | 4.26 | 111,172 |
