| Southernmost Countries A-Z | 0 | - | 4.95 | 154,142 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,724 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,949 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,013 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,032 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,299 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,525 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,720 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,486 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,453 |
| Name an Official Language A-Z | 0 | - | 4.91 | 177,017 |
| 20th Century A-Z | 0 | - | 4.50 | 53,996 |
| 19th Century A-Z | 0 | - | 4.77 | 47,479 |
| 18th Century A-Z | 0 | - | 4.54 | 43,334 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,130 |
| History by Letter - A | 0 | - | 4.51 | 153,907 |
| History by Letter - B | 0 | - | 4.45 | 173,303 |
| History by Letter - C | 0 | - | 4.70 | 172,660 |
| History by Letter - E | 0 | - | 4.51 | 141,506 |
| History by Letter - G | 0 | - | 4.46 | 122,903 |
| History by Letter - H | 0 | - | 4.45 | 137,590 |
| History by Letter - J | 0 | - | 4.51 | 155,021 |
| History by Letter - N | 0 | - | 4.45 | 104,815 |
| History by Letter - S | 0 | - | 4.47 | 94,992 |
| History by Letter - W | 0 | - | 4.45 | 110,236 |
| History by Letter - M | 0 | - | 4.54 | 120,706 |
| History by Letter - K | 0 | - | 4.50 | 102,020 |
| History by Letter - L | 0 | - | 4.50 | 112,819 |
| History by Letter - I | 0 | - | 4.46 | 105,033 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,132 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,567 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,159 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,511 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,828 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,435 |
| Geography by Letter - T | 0 | - | 4.84 | 155,225 |
| 16th Century A-Z | 0 | - | 4.59 | 25,025 |
| 15th Century A-Z | 0 | - | 4.50 | 24,019 |
| 14th Century A-Z | 0 | - | 4.41 | 24,509 |
| History by Letter - D | 0 | - | 4.40 | 138,594 |
| History by Letter - F | 0 | - | 4.19 | 115,090 |
| History by Letter - O | 0 | - | 4.32 | 100,291 |
| History by Letter - P | 0 | - | 4.36 | 108,482 |
| History by Letter - Q | 0 | - | 4.34 | 80,807 |
| History by Letter - R | 0 | - | 4.26 | 122,828 |
| History by Letter - T | 0 | - | 4.39 | 105,817 |
| History by Letter - U | 0 | - | 4.19 | 101,334 |
| History by Letter - V | 0 | - | 4.27 | 81,231 |
| History by Letter - Y | 0 | - | 4.27 | 87,734 |
| History by Letter - Z | 0 | - | 4.20 | 77,461 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,348 |
| History Containing the Letter X | 0 | - | 4.47 | 27,152 |
| Disney A-Z | 0 | - | 4.37 | 87,507 |
| Companies A-Z | 0 | - | 4.30 | 42,776 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,746 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 77,738 |
| Islands A-Z | 0 | - | 4.46 | 127,685 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 60,354 |
| Human Body A-Z | 0 | - | 4.51 | 130,064 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,012 |
| Video Games A-Z | 0 | - | 4.05 | 39,260 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,408 |
| Africa A-Z | 0 | - | 4.57 | 46,778 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,258 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,522 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,192 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 83,067 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,918 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,562 |
| "Second Best" History Edition | 0 | - | 4.94 | 64,258 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,450 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,883 |
| Military History A-Z | 0 | - | 4.20 | 21,254 |
| Double Letters A-Z | 0 | - | 4.51 | 27,226 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,927 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,532 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,724 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,806 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,795 |
| History Ending in Z | 0 | - | 4.35 | 13,601 |
| A to Z: Musical Terms #2 | 0 | - | 4.08 | 11,129 |
| Geography A-Z #4 | 0 | - | 4.36 | 26,010 |
| Canada A-Z | 0 | - | 4.73 | 32,975 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,828 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,711 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,234 |
| 17th Century A-Z | 0 | - | 4.78 | 34,765 |
| NATO Military Alphabet | 0 | - | 4.98 | 564,435 |
| Geography by Letter - A | 0 | - | 4.74 | 212,870 |
| Geography by Letter - B | 0 | - | 4.56 | 185,861 |
| Geography by Letter - H | 0 | - | 4.69 | 151,471 |
| Geography by Letter - C | 0 | - | 4.48 | 159,763 |
| Geography by Letter - D | 0 | - | 4.50 | 151,739 |
| Geography by Letter - E | 0 | - | 4.42 | 148,570 |
| Geography by Letter - I | 0 | - | 4.42 | 122,779 |
| Geography by Letter - K | 0 | - | 4.54 | 119,110 |
| Geography by Letter - L | 0 | - | 4.44 | 149,617 |
| Geography by Letter - M | 0 | - | 4.49 | 119,616 |
| Geography by Letter - N | 0 | - | 4.51 | 127,979 |
| Geography by Letter - P | 0 | - | 4.47 | 176,930 |
| Geography by Letter - R | 0 | - | 4.43 | 132,690 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,498 |
| Geography by Letter - U | 0 | - | 4.52 | 143,979 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,371 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,780 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,179 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,620 |
| Movies that Start with G | 0 | - | 4.49 | 68,828 |
| Movies that Start with I | 0 | - | 4.41 | 65,430 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,213 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,985 |
| Empires by Maps | 0 | - | 4.98 | 122,198 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,173 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,148 |
| Name the War | 0 | - | 4.37 | 202,864 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,644 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,450 |
| Famous Families #1 | 0 | - | 4.20 | 83,746 |
| Names for Warriors | 0 | - | 4.40 | 37,061 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,434 |
| The 7 Wonders of the Ancient World | 0 | - | 4.86 | 82,630 |
| Countries by Military Spending | 0 | - | 4.93 | 179,033 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,588 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,759 |
| Islam A-Z | 0 | - | 4.30 | 24,211 |
| American Football A-Z | 0 | - | 4.26 | 14,556 |
| MLB Baseball A-Z #2 | 0 | - | 4.11 | 17,155 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,842 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,879 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,957 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,397 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,907 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,488 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,578 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,775 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,326,105 |
| Animals that Start with L | 0 | - | 4.47 | 102,456 |
| Animals that Start with P | 0 | - | 4.45 | 86,486 |
| Animals that Start with S | 0 | - | 4.49 | 87,679 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 91,140 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,600 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,483 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,249 |
| Literature by Letter - A | 0 | - | 4.24 | 32,366 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,413 |
| Geography by Letter - G | 0 | - | 4.33 | 127,093 |
| Geography by Letter - F | 0 | - | 4.28 | 138,808 |
| Geography by Letter - J | 0 | - | 4.35 | 123,676 |
| Geography by Letter - O | 0 | - | 4.37 | 130,492 |
| Geography by Letter - V | 0 | - | 4.39 | 122,629 |
| Geography by Letter - W | 0 | - | 4.39 | 115,496 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,193 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,195 |
| Geography by Letter - Q | 0 | - | 4.38 | 70,091 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,380 |
| Movies that Start with A | 0 | - | 4.13 | 62,149 |
| Movies that Start with C | 0 | - | 4.30 | 62,149 |
| Movies that Start with B | 0 | - | 4.36 | 85,714 |
| Movies that Start with D | 0 | - | 4.34 | 68,674 |
| Movies that Start with E | 0 | - | 4.13 | 68,614 |
| Movies that Start with J | 0 | - | 4.18 | 76,425 |
| Movies that Start with L | 0 | - | 4.16 | 60,609 |
| Movies that Start with M | 0 | - | 4.28 | 48,408 |
| Movies that Start with N | 0 | - | 4.02 | 41,403 |
| Movies that Start with P | 0 | - | 4.25 | 54,300 |
| Movies that Start with R | 0 | - | 4.17 | 46,825 |
| Movies that Start with W | 0 | - | 4.07 | 44,377 |
| Movies that Start with T | 0 | - | 4.34 | 49,467 |
| Movies that Start with S | 0 | - | 4.35 | 56,648 |
| Movies that Start with F | 0 | - | 4.13 | 69,099 |
| Music by Letter - F | 0 | - | 4.47 | 27,142 |
| Music by Letter - A | 0 | - | 4.61 | 31,539 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,705 |
| Brand Logos That Start With D | 0 | - | 4.37 | 62,242 |
| Brand Logos That Start With C | 0 | - | 4.21 | 50,167 |
| Brand Logos That Start With L | 0 | - | 4.40 | 61,948 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,580 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,337 |
| Influential Women in History | 0 | - | 4.43 | 36,509 |
| Metals of Antiquity | 0 | - | 4.95 | 93,946 |
| Cradles of Civilization | 0 | - | 4.46 | 40,491 |
| Materials From History #1 | 0 | - | 4.56 | 52,079 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,163 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 710,253 |
| WWI... or WWII? | 0 | - | 4.85 | 143,520 |
| Oldest Things | 0 | - | 3.92 | 65,713 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,863 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,671 |
| Famous Explorers | 0 | - | 4.58 | 36,389 |
| Famous Empires by Description | 0 | - | 4.72 | 119,001 |
| Answers by Time Period | 0 | - | 4.64 | 55,894 |
| Coups d'Etat - Name the Country | 0 | - | 4.43 | 41,815 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,949 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,652 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,569 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,464 |
| Middle East A-Z | 0 | - | 4.47 | 46,247 |
| South America A-Z | 0 | - | 4.15 | 10,948 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,380 |
| Notable People of WWII | 0 | - | 4.53 | 86,581 |
