| People in History A-Z #2 | 0 | - | 4.47 | 55,462 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,437 |
| Empires A-Z | 0 | - | 4.52 | 45,450 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,121 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,104 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,659 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,907 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,929 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,954 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,245 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,483 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,941 |
| 20th Century A-Z | 0 | - | 4.50 | 53,975 |
| 19th Century A-Z | 0 | - | 4.77 | 47,464 |
| 18th Century A-Z | 0 | - | 4.54 | 43,323 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,182 |
| History by Letter - A | 0 | - | 4.51 | 153,867 |
| History by Letter - B | 0 | - | 4.45 | 173,254 |
| History by Letter - C | 0 | - | 4.70 | 172,607 |
| History by Letter - E | 0 | - | 4.51 | 141,466 |
| History by Letter - G | 0 | - | 4.46 | 122,877 |
| History by Letter - H | 0 | - | 4.45 | 137,552 |
| History by Letter - J | 0 | - | 4.51 | 154,980 |
| History by Letter - N | 0 | - | 4.45 | 104,789 |
| History by Letter - S | 0 | - | 4.47 | 94,963 |
| History by Letter - W | 0 | - | 4.45 | 110,198 |
| History by Letter - M | 0 | - | 4.54 | 120,675 |
| History by Letter - K | 0 | - | 4.50 | 101,988 |
| History by Letter - L | 0 | - | 4.50 | 112,797 |
| History by Letter - I | 0 | - | 4.46 | 105,010 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,120 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,559 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,143 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,506 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,818 |
| 16th Century A-Z | 0 | - | 4.58 | 25,016 |
| 15th Century A-Z | 0 | - | 4.49 | 24,012 |
| 14th Century A-Z | 0 | - | 4.41 | 24,502 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,308 |
| Geography by Letter - T | 0 | - | 4.84 | 155,102 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,471 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,568 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,766 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 77,185 |
| Islands A-Z | 0 | - | 4.46 | 127,482 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 60,280 |
| Human Body A-Z | 0 | - | 4.51 | 129,641 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,983 |
| Africa A-Z | 0 | - | 4.57 | 46,764 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,218 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,503 |
| History by Letter - D | 0 | - | 4.40 | 138,560 |
| History by Letter - F | 0 | - | 4.19 | 115,071 |
| History by Letter - O | 0 | - | 4.32 | 100,269 |
| History by Letter - P | 0 | - | 4.36 | 108,461 |
| History by Letter - Q | 0 | - | 4.34 | 80,789 |
| History by Letter - R | 0 | - | 4.26 | 122,803 |
| History by Letter - T | 0 | - | 4.39 | 105,797 |
| History by Letter - U | 0 | - | 4.19 | 101,307 |
| History by Letter - V | 0 | - | 4.27 | 81,208 |
| History by Letter - Y | 0 | - | 4.27 | 87,716 |
| History by Letter - Z | 0 | - | 4.20 | 77,442 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,337 |
| History Containing the Letter X | 0 | - | 4.47 | 27,146 |
| Disney A-Z | 0 | - | 4.37 | 87,482 |
| Companies A-Z | 0 | - | 4.30 | 42,774 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,742 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,998 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,848 |
| Video Games A-Z | 0 | - | 4.05 | 39,241 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,397 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,549 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,421 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,857 |
| Military History A-Z | 0 | - | 4.20 | 21,245 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,797 |
| Double Letters A-Z | 0 | - | 4.51 | 27,221 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,909 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,524 |
| Canada A-Z | 0 | - | 4.73 | 32,967 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,604 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,660 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,176 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,800 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,784 |
| History Ending in Z | 0 | - | 4.35 | 13,597 |
| A to Z: Musical Terms #2 | 0 | - | 4.08 | 11,125 |
| Geography A-Z #4 | 0 | - | 4.36 | 26,006 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,601 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,815 |
| 17th Century A-Z | 0 | - | 4.78 | 34,755 |
| NATO Military Alphabet | 0 | - | 4.98 | 564,181 |
| Geography by Letter - A | 0 | - | 4.74 | 212,759 |
| Geography by Letter - B | 0 | - | 4.56 | 185,745 |
| Geography by Letter - H | 0 | - | 4.69 | 151,217 |
| Geography by Letter - C | 0 | - | 4.48 | 159,657 |
| Geography by Letter - D | 0 | - | 4.50 | 151,644 |
| Geography by Letter - E | 0 | - | 4.42 | 148,471 |
| Geography by Letter - I | 0 | - | 4.42 | 122,719 |
| Geography by Letter - K | 0 | - | 4.54 | 119,051 |
| Geography by Letter - L | 0 | - | 4.44 | 149,552 |
| Geography by Letter - M | 0 | - | 4.49 | 119,553 |
| Geography by Letter - N | 0 | - | 4.51 | 127,911 |
| Geography by Letter - P | 0 | - | 4.47 | 176,861 |
| Geography by Letter - R | 0 | - | 4.43 | 132,600 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,422 |
| Geography by Letter - U | 0 | - | 4.52 | 143,908 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,355 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,767 |
| Movies that Start with G | 0 | - | 4.49 | 68,808 |
| Movies that Start with I | 0 | - | 4.41 | 65,412 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,150 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,359 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,880 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,132 |
| Name the War | 0 | - | 4.37 | 202,810 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,635 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,439 |
| Famous Families #1 | 0 | - | 4.20 | 83,736 |
| Names for Warriors | 0 | - | 4.40 | 37,053 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,415 |
| American Football A-Z | 0 | - | 4.26 | 14,556 |
| MLB Baseball A-Z #2 | 0 | - | 4.11 | 17,152 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,856 |
| Empires by Maps | 0 | - | 4.98 | 122,022 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,803 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,850 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,948 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,131 |
| The 7 Wonders of the Ancient World | 0 | - | 4.86 | 82,617 |
| Countries by Military Spending | 0 | - | 4.93 | 178,978 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,325,362 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,565 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,702 |
| Animals that Start with L | 0 | - | 4.47 | 102,429 |
| Animals that Start with P | 0 | - | 4.45 | 86,462 |
| Animals that Start with S | 0 | - | 4.49 | 87,667 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 91,097 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,537 |
| Metals of Antiquity | 0 | - | 4.95 | 93,907 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,132 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,477 |
| WWI... or WWII? | 0 | - | 4.85 | 143,353 |
| Oldest Things | 0 | - | 3.92 | 65,709 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,858 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,943 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,236 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,619 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,483 |
| Literature by Letter - A | 0 | - | 4.24 | 32,347 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,403 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,448 |
| Geography by Letter - G | 0 | - | 4.33 | 127,024 |
| Geography by Letter - F | 0 | - | 4.28 | 138,731 |
| Geography by Letter - J | 0 | - | 4.35 | 123,619 |
| Geography by Letter - O | 0 | - | 4.37 | 130,434 |
| Geography by Letter - V | 0 | - | 4.39 | 122,555 |
| Geography by Letter - W | 0 | - | 4.39 | 115,443 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,137 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,147 |
| Geography by Letter - Q | 0 | - | 4.38 | 70,032 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,375 |
| Middle East A-Z | 0 | - | 4.47 | 46,236 |
| South America A-Z | 0 | - | 4.15 | 10,946 |
| Movies that Start with A | 0 | - | 4.13 | 62,134 |
| Movies that Start with C | 0 | - | 4.30 | 62,129 |
| Movies that Start with B | 0 | - | 4.36 | 85,695 |
| Movies that Start with D | 0 | - | 4.34 | 68,658 |
| Movies that Start with E | 0 | - | 4.13 | 68,594 |
| Movies that Start with J | 0 | - | 4.18 | 76,410 |
| Movies that Start with L | 0 | - | 4.16 | 60,597 |
| Movies that Start with M | 0 | - | 4.28 | 48,397 |
| Movies that Start with N | 0 | - | 4.02 | 41,396 |
| Movies that Start with P | 0 | - | 4.25 | 54,288 |
| Movies that Start with R | 0 | - | 4.17 | 46,811 |
| Movies that Start with W | 0 | - | 4.07 | 44,373 |
| Movies that Start with T | 0 | - | 4.34 | 49,457 |
| Movies that Start with S | 0 | - | 4.35 | 56,636 |
| Movies that Start with F | 0 | - | 4.13 | 69,081 |
| Music by Letter - F | 0 | - | 4.47 | 27,132 |
| Music by Letter - A | 0 | - | 4.61 | 31,526 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,643 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,182 |
| Brand Logos That Start With C | 0 | - | 4.20 | 50,114 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,890 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,517 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,284 |
| Influential Women in History | 0 | - | 4.43 | 36,468 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,369 |
| Cradles of Civilization | 0 | - | 4.46 | 40,456 |
| Materials From History #1 | 0 | - | 4.56 | 52,057 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 710,080 |
| Notable People of WWII | 0 | - | 4.53 | 86,538 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,561 |
| World War I Quiz | 0 | - | 4.78 | 102,048 |
| WWI A-Z | 0 | - | 4.51 | 38,594 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,615 |
| Famous Explorers | 0 | - | 4.58 | 36,376 |
| Famous Empires by Description | 0 | - | 4.73 | 118,981 |
| Answers by Time Period | 0 | - | 4.64 | 55,873 |
