| 17th Century A-Z | 0 | - | 4.78 | 34,194 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,466 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,375 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,217 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,959 |
| Empires A-Z | 0 | - | 4.51 | 44,880 |
| History by Letter - A | 0 | - | 4.51 | 152,239 |
| History by Letter - B | 0 | - | 4.45 | 171,404 |
| History by Letter - C | 0 | - | 4.70 | 170,483 |
| History by Letter - E | 0 | - | 4.51 | 139,969 |
| History by Letter - G | 0 | - | 4.45 | 121,554 |
| History by Letter - H | 0 | - | 4.45 | 135,989 |
| History by Letter - J | 0 | - | 4.51 | 153,356 |
| History by Letter - N | 0 | - | 4.44 | 103,483 |
| History by Letter - S | 0 | - | 4.47 | 93,759 |
| History by Letter - W | 0 | - | 4.45 | 108,842 |
| History by Letter - M | 0 | - | 4.54 | 119,193 |
| History by Letter - K | 0 | - | 4.50 | 100,904 |
| History by Letter - L | 0 | - | 4.49 | 111,595 |
| History by Letter - I | 0 | - | 4.46 | 103,767 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 128,930 |
| Geography by Letter - T | 0 | - | 4.84 | 152,649 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,683 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,872 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,990 |
| 20th Century A-Z | 0 | - | 4.50 | 53,211 |
| 19th Century A-Z | 0 | - | 4.77 | 46,770 |
| 18th Century A-Z | 0 | - | 4.54 | 42,674 |
| History by Letter - D | 0 | - | 4.39 | 136,988 |
| History by Letter - F | 0 | - | 4.18 | 113,774 |
| History by Letter - O | 0 | - | 4.31 | 99,133 |
| History by Letter - P | 0 | - | 4.39 | 107,429 |
| History by Letter - Q | 0 | - | 4.34 | 80,029 |
| History by Letter - R | 0 | - | 4.26 | 121,750 |
| History by Letter - T | 0 | - | 4.39 | 104,947 |
| History by Letter - U | 0 | - | 4.19 | 100,436 |
| History by Letter - V | 0 | - | 4.27 | 80,434 |
| History by Letter - Y | 0 | - | 4.27 | 86,990 |
| History by Letter - Z | 0 | - | 4.18 | 76,787 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,131 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,395 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,060 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,848 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,169 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,517 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 190,988 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,589 |
| Middle East A-Z | 0 | - | 4.47 | 45,843 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,494 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,265 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,824 |
| Star Wars A-Z | 0 | - | 4.46 | 87,263 |
| Name an Official Language A-Z | 0 | - | 4.91 | 174,964 |
| WWII Geography | 0 | - | 4.81 | 119,455 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,154 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,632 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,279 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,625 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,977 |
| 16th Century A-Z | 0 | - | 4.58 | 24,410 |
| 15th Century A-Z | 0 | - | 4.49 | 23,413 |
| 14th Century A-Z | 0 | - | 4.41 | 23,798 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,679 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,560 |
| Name the English Monarchs | 0 | - | 4.92 | 498,734 |
| The Trojan War | 0 | - | 4.83 | 39,477 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,757 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,411 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,128 |
| Roman Emperors | 0 | - | 4.95 | 118,668 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,939 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,849 |
| Geography by Letter - A | 0 | - | 4.74 | 210,313 |
| Geography by Letter - B | 0 | - | 4.56 | 183,453 |
| Geography by Letter - H | 0 | - | 4.69 | 149,409 |
| Geography by Letter - C | 0 | - | 4.47 | 157,723 |
| Geography by Letter - D | 0 | - | 4.50 | 149,640 |
| Geography by Letter - E | 0 | - | 4.42 | 146,783 |
| Geography by Letter - I | 0 | - | 4.42 | 121,304 |
| Geography by Letter - K | 0 | - | 4.53 | 117,438 |
| Geography by Letter - L | 0 | - | 4.43 | 147,742 |
| Geography by Letter - M | 0 | - | 4.49 | 117,750 |
| Geography by Letter - N | 0 | - | 4.51 | 126,371 |
| Geography by Letter - P | 0 | - | 4.47 | 175,289 |
| Geography by Letter - R | 0 | - | 4.43 | 130,511 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,747 |
| Geography by Letter - U | 0 | - | 4.54 | 142,224 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,001 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,121 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,723 |
| Switzerland A-Z | 0 | - | 4.45 | 25,533 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,212 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,379 |
| Movies that Start with G | 0 | - | 4.48 | 68,284 |
| Movies that Start with I | 0 | - | 4.41 | 64,926 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,425 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,324 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,919 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,564 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,792 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,565 |
| World War II Multiple Choice | 0 | - | 4.38 | 103,360 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,841 |
| Name the War | 0 | - | 4.37 | 200,903 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,425 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,847 |
| Famous Families #1 | 0 | - | 4.20 | 83,431 |
| Names for Warriors | 0 | - | 4.40 | 36,808 |
| Military History A-Z | 0 | - | 4.20 | 21,060 |
| Ye Olde Professions | 0 | - | 4.67 | 155,863 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,238 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,358 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,608 |
| NATO Military Alphabet | 0 | - | 4.98 | 555,048 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 798,494 |
| Animals that Start with L | 0 | - | 4.47 | 101,554 |
| Animals that Start with P | 0 | - | 4.45 | 85,774 |
| Animals that Start with S | 0 | - | 4.49 | 86,970 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,742 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,742 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 66,639 |
| Islands A-Z | 0 | - | 4.46 | 116,886 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 58,046 |
| Human Body A-Z | 0 | - | 4.51 | 128,650 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 34,690 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,883 |
| Africa A-Z | 0 | - | 4.57 | 46,408 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.67 | 54,235 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,077 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,776 |
| Empires by Maps | 0 | - | 4.98 | 118,782 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,317 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,207 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,139 |
| Countries by Military Spending | 0 | - | 4.93 | 176,572 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,306,748 |
| Disney A-Z | 0 | - | 4.37 | 86,633 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,597 |
| Literature by Letter - A | 0 | - | 4.23 | 31,784 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,078 |
| Companies A-Z | 0 | - | 4.30 | 42,625 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.91 | 119,844 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,508 |
| Geography by Letter - G | 0 | - | 4.35 | 125,583 |
| Geography by Letter - F | 0 | - | 4.27 | 137,165 |
| Geography by Letter - J | 0 | - | 4.34 | 122,252 |
| Geography by Letter - O | 0 | - | 4.37 | 129,103 |
| Geography by Letter - V | 0 | - | 4.39 | 121,009 |
| Geography by Letter - W | 0 | - | 4.39 | 114,288 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,769 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,124 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,966 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,133 |
| Video Games A-Z | 0 | - | 4.08 | 38,739 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,102 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,189 |
| Turkey A-Z | 0 | - | 4.04 | 11,749 |
| Movies that Start with A | 0 | - | 4.13 | 61,665 |
| Movies that Start with C | 0 | - | 4.30 | 61,614 |
| Movies that Start with B | 0 | - | 4.35 | 84,948 |
| Movies that Start with D | 0 | - | 4.34 | 68,250 |
| Movies that Start with E | 0 | - | 4.13 | 68,190 |
| Movies that Start with J | 0 | - | 4.18 | 75,948 |
| Movies that Start with L | 0 | - | 4.16 | 60,239 |
| Movies that Start with M | 0 | - | 4.28 | 48,085 |
| Movies that Start with N | 0 | - | 4.02 | 41,126 |
| Movies that Start with P | 0 | - | 4.25 | 54,021 |
| Movies that Start with R | 0 | - | 4.17 | 46,474 |
| Movies that Start with W | 0 | - | 4.07 | 44,151 |
| Movies that Start with T | 0 | - | 4.33 | 49,142 |
| Movies that Start with S | 0 | - | 4.35 | 56,288 |
| Movies that Start with F | 0 | - | 4.13 | 68,664 |
| Music by Letter - F | 0 | - | 4.48 | 26,858 |
| Music by Letter - A | 0 | - | 4.61 | 31,233 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,815 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,120 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,343 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,867 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,055 |
| Metals of Antiquity | 0 | - | 4.94 | 92,994 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,250 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,811 |
| Notable People of WWII | 0 | - | 4.53 | 85,356 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,491 |
| 1950s Decade Quiz | 0 | - | 4.41 | 48,952 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 44,540 |
| World War I Quiz | 0 | - | 4.78 | 100,345 |
| WWI A-Z | 0 | - | 4.50 | 38,055 |
| Oldest Things | 0 | - | 3.92 | 65,601 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,775 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,860 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,499 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,811 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,799 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.28 | 44,807 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,720 |
| Medieval English History | 0 | - | 4.53 | 43,347 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,990 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,891 |
| Best Selling Artists by Letter Quiz | 0 | - | 4.04 | 43,223 |
