| Southernmost Countries A-Z | 0 | - | 4.95 | 153,934 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,396 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,724 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,599 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,643 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,029 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,303 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,572 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,381 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,386 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,647 |
| 20th Century A-Z | 0 | - | 4.50 | 53,912 |
| 19th Century A-Z | 0 | - | 4.77 | 47,417 |
| 18th Century A-Z | 0 | - | 4.54 | 43,276 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,083 |
| History by Letter - A | 0 | - | 4.51 | 153,673 |
| History by Letter - B | 0 | - | 4.45 | 173,022 |
| History by Letter - C | 0 | - | 4.70 | 172,352 |
| History by Letter - E | 0 | - | 4.51 | 141,271 |
| History by Letter - G | 0 | - | 4.46 | 122,704 |
| History by Letter - H | 0 | - | 4.45 | 137,359 |
| History by Letter - J | 0 | - | 4.51 | 154,742 |
| History by Letter - N | 0 | - | 4.45 | 104,591 |
| History by Letter - S | 0 | - | 4.47 | 94,821 |
| History by Letter - W | 0 | - | 4.45 | 110,042 |
| History by Letter - M | 0 | - | 4.54 | 120,502 |
| History by Letter - K | 0 | - | 4.50 | 101,829 |
| History by Letter - L | 0 | - | 4.50 | 112,621 |
| History by Letter - I | 0 | - | 4.46 | 104,853 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,091 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,506 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,073 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,469 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,744 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,866 |
| Geography by Letter - T | 0 | - | 4.84 | 154,821 |
| 16th Century A-Z | 0 | - | 4.58 | 24,983 |
| 15th Century A-Z | 0 | - | 4.49 | 23,989 |
| 14th Century A-Z | 0 | - | 4.41 | 24,467 |
| History by Letter - D | 0 | - | 4.40 | 138,386 |
| History by Letter - F | 0 | - | 4.18 | 114,923 |
| History by Letter - O | 0 | - | 4.32 | 99,927 |
| History by Letter - P | 0 | - | 4.36 | 108,295 |
| History by Letter - Q | 0 | - | 4.34 | 80,670 |
| History by Letter - R | 0 | - | 4.26 | 122,652 |
| History by Letter - T | 0 | - | 4.39 | 105,664 |
| History by Letter - U | 0 | - | 4.19 | 101,183 |
| History by Letter - V | 0 | - | 4.27 | 81,102 |
| History by Letter - Y | 0 | - | 4.27 | 87,614 |
| History by Letter - Z | 0 | - | 4.20 | 77,357 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,317 |
| History Containing the Letter X | 0 | - | 4.47 | 27,124 |
| Disney A-Z | 0 | - | 4.37 | 87,400 |
| Companies A-Z | 0 | - | 4.30 | 42,752 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,709 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,591 |
| Islands A-Z | 0 | - | 4.45 | 126,750 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,430 |
| Human Body A-Z | 0 | - | 4.51 | 129,527 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,843 |
| Video Games A-Z | 0 | - | 4.05 | 39,174 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,360 |
| Africa A-Z | 0 | - | 4.57 | 46,736 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,128 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,449 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,156 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,802 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,632 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,484 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,795 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,339 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,719 |
| Military History A-Z | 0 | - | 4.20 | 21,223 |
| Double Letters A-Z | 0 | - | 4.51 | 27,207 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,852 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,485 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,213 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,786 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,758 |
| History Ending in Z | 0 | - | 4.35 | 13,578 |
| A to Z: Musical Terms #2 | 0 | - | 4.08 | 11,096 |
| Geography A-Z #4 | 0 | - | 4.36 | 25,974 |
| Canada A-Z | 0 | - | 4.73 | 32,929 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,774 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,590 |
| Territory Changes in World War I | 0 | - | 4.87 | 47,039 |
| 17th Century A-Z | 0 | - | 4.78 | 34,723 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,924 |
| NATO Military Alphabet | 0 | - | 4.98 | 563,067 |
| Geography by Letter - A | 0 | - | 4.74 | 212,516 |
| Geography by Letter - B | 0 | - | 4.56 | 185,502 |
| Geography by Letter - H | 0 | - | 4.69 | 151,035 |
| Geography by Letter - C | 0 | - | 4.48 | 159,473 |
| Geography by Letter - D | 0 | - | 4.50 | 151,462 |
| Geography by Letter - E | 0 | - | 4.42 | 148,285 |
| Geography by Letter - I | 0 | - | 4.42 | 122,562 |
| Geography by Letter - K | 0 | - | 4.54 | 118,914 |
| Geography by Letter - L | 0 | - | 4.44 | 149,389 |
| Geography by Letter - M | 0 | - | 4.49 | 119,405 |
| Geography by Letter - N | 0 | - | 4.51 | 127,763 |
| Geography by Letter - P | 0 | - | 4.47 | 176,697 |
| Geography by Letter - R | 0 | - | 4.43 | 132,397 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,227 |
| Geography by Letter - U | 0 | - | 4.53 | 143,723 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,295 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,742 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,115 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,524 |
| Movies that Start with G | 0 | - | 4.49 | 68,751 |
| Movies that Start with I | 0 | - | 4.41 | 65,361 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,450 |
| Empires by Maps | 0 | - | 4.98 | 121,448 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,004 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,084 |
| Name the War | 0 | - | 4.37 | 202,613 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,608 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,400 |
| Famous Families #1 | 0 | - | 4.20 | 83,703 |
| Names for Warriors | 0 | - | 4.40 | 37,024 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,388 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,533 |
| Countries by Military Spending | 0 | - | 4.93 | 178,745 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,471 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,476 |
| Islam A-Z | 0 | - | 4.30 | 24,154 |
| American Football A-Z | 0 | - | 4.26 | 14,549 |
| MLB Baseball A-Z #2 | 0 | - | 4.11 | 17,141 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,662 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,718 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,909 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,249 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,814 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,441 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,535 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,740 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,322,961 |
| Animals that Start with L | 0 | - | 4.47 | 102,348 |
| Animals that Start with P | 0 | - | 4.45 | 86,395 |
| Animals that Start with S | 0 | - | 4.49 | 87,593 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,931 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,342 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,446 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,201 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,453 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,003 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,995 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,695 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,331 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,089 |
| Literature by Letter - A | 0 | - | 4.24 | 32,304 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,381 |
| Geography by Letter - G | 0 | - | 4.33 | 126,883 |
| Geography by Letter - F | 0 | - | 4.28 | 138,609 |
| Geography by Letter - J | 0 | - | 4.35 | 123,489 |
| Geography by Letter - O | 0 | - | 4.37 | 130,303 |
| Geography by Letter - V | 0 | - | 4.39 | 122,359 |
| Geography by Letter - W | 0 | - | 4.39 | 115,313 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,010 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,045 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,930 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,352 |
| Movies that Start with A | 0 | - | 4.13 | 62,075 |
| Movies that Start with C | 0 | - | 4.30 | 62,064 |
| Movies that Start with B | 0 | - | 4.36 | 85,635 |
| Movies that Start with D | 0 | - | 4.34 | 68,609 |
| Movies that Start with E | 0 | - | 4.13 | 68,552 |
| Movies that Start with J | 0 | - | 4.18 | 76,368 |
| Movies that Start with L | 0 | - | 4.16 | 60,559 |
| Movies that Start with M | 0 | - | 4.28 | 48,361 |
| Movies that Start with N | 0 | - | 4.02 | 41,356 |
| Movies that Start with P | 0 | - | 4.25 | 54,254 |
| Movies that Start with R | 0 | - | 4.17 | 46,772 |
| Movies that Start with W | 0 | - | 4.07 | 44,350 |
| Movies that Start with T | 0 | - | 4.34 | 49,424 |
| Movies that Start with S | 0 | - | 4.35 | 56,602 |
| Movies that Start with F | 0 | - | 4.13 | 69,033 |
| Music by Letter - F | 0 | - | 4.47 | 27,101 |
| Music by Letter - A | 0 | - | 4.61 | 31,491 |
| Influential Women in History | 0 | - | 4.42 | 36,213 |
| Metals of Antiquity | 0 | - | 4.95 | 93,771 |
| Cradles of Civilization | 0 | - | 4.46 | 40,169 |
| Materials From History #1 | 0 | - | 4.56 | 51,949 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,014 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,514 |
| WWI... or WWII? | 0 | - | 4.85 | 143,009 |
| Oldest Things | 0 | - | 3.92 | 65,698 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,849 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,401 |
| Famous Explorers | 0 | - | 4.58 | 36,293 |
| Famous Empires by Description | 0 | - | 4.73 | 118,844 |
| Answers by Time Period | 0 | - | 4.64 | 55,793 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,928 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,517 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,148 |
| Top Five Exporting Partners by Country | 0 | - | 4.86 | 67,350 |
| Middle East A-Z | 0 | - | 4.47 | 46,202 |
| South America A-Z | 0 | - | 4.15 | 10,936 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,339 |
| Notable People of WWII | 0 | - | 4.53 | 86,105 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,419 |
