| 17th Century A-Z | 0 | - | 4.78 | 34,732 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,274 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,834 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,316 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,544 |
| Empires A-Z | 0 | - | 4.52 | 45,394 |
| History by Letter - A | 0 | - | 4.51 | 153,734 |
| History by Letter - B | 0 | - | 4.45 | 173,095 |
| History by Letter - C | 0 | - | 4.70 | 172,435 |
| History by Letter - E | 0 | - | 4.51 | 141,334 |
| History by Letter - G | 0 | - | 4.46 | 122,751 |
| History by Letter - H | 0 | - | 4.45 | 137,419 |
| History by Letter - J | 0 | - | 4.51 | 154,824 |
| History by Letter - N | 0 | - | 4.45 | 104,684 |
| History by Letter - S | 0 | - | 4.47 | 94,858 |
| History by Letter - W | 0 | - | 4.45 | 110,088 |
| History by Letter - M | 0 | - | 4.54 | 120,553 |
| History by Letter - K | 0 | - | 4.50 | 101,877 |
| History by Letter - L | 0 | - | 4.50 | 112,673 |
| History by Letter - I | 0 | - | 4.46 | 104,901 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,994 |
| Geography by Letter - T | 0 | - | 4.84 | 154,904 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,605 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,402 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,399 |
| 20th Century A-Z | 0 | - | 4.50 | 53,937 |
| 19th Century A-Z | 0 | - | 4.77 | 47,429 |
| 18th Century A-Z | 0 | - | 4.54 | 43,285 |
| History by Letter - D | 0 | - | 4.40 | 138,444 |
| History by Letter - F | 0 | - | 4.18 | 114,971 |
| History by Letter - O | 0 | - | 4.32 | 99,964 |
| History by Letter - P | 0 | - | 4.36 | 108,340 |
| History by Letter - Q | 0 | - | 4.34 | 80,702 |
| History by Letter - R | 0 | - | 4.26 | 122,699 |
| History by Letter - T | 0 | - | 4.39 | 105,703 |
| History by Letter - U | 0 | - | 4.19 | 101,216 |
| History by Letter - V | 0 | - | 4.27 | 81,127 |
| History by Letter - Y | 0 | - | 4.27 | 87,643 |
| History by Letter - Z | 0 | - | 4.20 | 77,387 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,322 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,860 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,697 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,964 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,458 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,758 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,676 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,706 |
| Middle East A-Z | 0 | - | 4.47 | 46,215 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,106 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,336 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,095 |
| Star Wars A-Z | 0 | - | 4.46 | 88,688 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,734 |
| WWII Geography | 0 | - | 4.81 | 120,839 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,619 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,100 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,080 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,365 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,762 |
| 16th Century A-Z | 0 | - | 4.58 | 24,991 |
| 15th Century A-Z | 0 | - | 4.49 | 23,996 |
| 14th Century A-Z | 0 | - | 4.41 | 24,477 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,791 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,767 |
| Name the English Monarchs | 0 | - | 4.91 | 505,618 |
| The Trojan War | 0 | - | 4.83 | 39,943 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,738 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,787 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,508 |
| Roman Emperors | 0 | - | 4.95 | 120,966 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,163 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,989 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,100 |
| Geography by Letter - A | 0 | - | 4.74 | 212,597 |
| Geography by Letter - B | 0 | - | 4.56 | 185,573 |
| Geography by Letter - H | 0 | - | 4.69 | 151,091 |
| Geography by Letter - C | 0 | - | 4.48 | 159,534 |
| Geography by Letter - D | 0 | - | 4.50 | 151,521 |
| Geography by Letter - E | 0 | - | 4.42 | 148,354 |
| Geography by Letter - I | 0 | - | 4.42 | 122,609 |
| Geography by Letter - K | 0 | - | 4.54 | 118,952 |
| Geography by Letter - L | 0 | - | 4.44 | 149,435 |
| Geography by Letter - M | 0 | - | 4.49 | 119,448 |
| Geography by Letter - N | 0 | - | 4.51 | 127,822 |
| Geography by Letter - P | 0 | - | 4.47 | 176,750 |
| Geography by Letter - R | 0 | - | 4.43 | 132,464 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,301 |
| Geography by Letter - U | 0 | - | 4.52 | 143,777 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,309 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,750 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,526 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,093 |
| Switzerland A-Z | 0 | - | 4.45 | 25,749 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,484 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,766 |
| Movies that Start with G | 0 | - | 4.49 | 68,769 |
| Movies that Start with I | 0 | - | 4.41 | 65,371 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,704 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,750 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,918 |
| World War II Multiple Choice | 0 | - | 4.38 | 104,435 |
| WWI... or WWII? | 0 | - | 4.85 | 143,111 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,103 |
| Name the War | 0 | - | 4.37 | 202,693 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,618 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,407 |
| Famous Families #1 | 0 | - | 4.20 | 83,710 |
| Names for Warriors | 0 | - | 4.40 | 37,041 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,396 |
| Military History A-Z | 0 | - | 4.20 | 21,231 |
| Ye Olde Professions | 0 | - | 4.63 | 157,329 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,453 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,547 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,754 |
| NATO Military Alphabet | 0 | - | 4.98 | 563,431 |
| Animals that Start with L | 0 | - | 4.47 | 102,371 |
| Animals that Start with P | 0 | - | 4.45 | 86,419 |
| Animals that Start with S | 0 | - | 4.49 | 87,617 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,970 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,394 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,623 |
| Islands A-Z | 0 | - | 4.45 | 126,985 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,459 |
| Human Body A-Z | 0 | - | 4.51 | 129,560 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,898 |
| Africa A-Z | 0 | - | 4.57 | 46,748 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,169 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,466 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,517 |
| Empires by Maps | 0 | - | 4.98 | 121,534 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,039 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,459 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,547 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,214 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,493 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,056 |
| Brand Logos That Start With C | 0 | - | 4.20 | 50,020 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,752 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,374 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,126 |
| Countries by Military Spending | 0 | - | 4.93 | 178,822 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,323,665 |
| Disney A-Z | 0 | - | 4.37 | 87,417 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,497 |
| Literature by Letter - A | 0 | - | 4.24 | 32,318 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,389 |
| Companies A-Z | 0 | - | 4.30 | 42,758 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,533 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,720 |
| Geography by Letter - G | 0 | - | 4.33 | 126,932 |
| Geography by Letter - F | 0 | - | 4.28 | 138,652 |
| Geography by Letter - J | 0 | - | 4.35 | 123,525 |
| Geography by Letter - O | 0 | - | 4.37 | 130,348 |
| Geography by Letter - V | 0 | - | 4.39 | 122,426 |
| Geography by Letter - W | 0 | - | 4.39 | 115,360 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,046 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,075 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,966 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,362 |
| Video Games A-Z | 0 | - | 4.05 | 39,193 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,374 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,506 |
| Turkey A-Z | 0 | - | 4.04 | 11,910 |
| Movies that Start with A | 0 | - | 4.13 | 62,094 |
| Movies that Start with C | 0 | - | 4.30 | 62,085 |
| Movies that Start with B | 0 | - | 4.36 | 85,651 |
| Movies that Start with D | 0 | - | 4.34 | 68,619 |
| Movies that Start with E | 0 | - | 4.13 | 68,563 |
| Movies that Start with J | 0 | - | 4.18 | 76,379 |
| Movies that Start with L | 0 | - | 4.16 | 60,571 |
| Movies that Start with M | 0 | - | 4.28 | 48,370 |
| Movies that Start with N | 0 | - | 4.02 | 41,364 |
| Movies that Start with P | 0 | - | 4.25 | 54,265 |
| Movies that Start with R | 0 | - | 4.17 | 46,784 |
| Movies that Start with W | 0 | - | 4.07 | 44,357 |
| Movies that Start with T | 0 | - | 4.34 | 49,433 |
| Movies that Start with S | 0 | - | 4.35 | 56,611 |
| Movies that Start with F | 0 | - | 4.13 | 69,047 |
| Music by Letter - F | 0 | - | 4.47 | 27,110 |
| Music by Letter - A | 0 | - | 4.61 | 31,500 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,349 |
| Metals of Antiquity | 0 | - | 4.95 | 93,813 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,048 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,677 |
| Notable People of WWII | 0 | - | 4.53 | 86,135 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,460 |
| 1950s Decade Quiz | 0 | - | 4.41 | 49,684 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 45,489 |
| World War I Quiz | 0 | - | 4.78 | 101,824 |
| WWI A-Z | 0 | - | 4.51 | 38,546 |
| Oldest Things | 0 | - | 3.92 | 65,701 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,851 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,934 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,188 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,013 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.28 | 45,116 |
| NBA Basketball by Year, 2000–Present | 0 | - | 4.34 | 61,268 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,544 |
| Medieval English History | 0 | - | 4.53 | 43,626 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,784 |
