| 17th Century A-Z | 0 | - | 4.78 | 34,637 |
| WWII A-Z #1 | 0 | - | 4.73 | 102,999 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,673 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,200 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,328 |
| Empires A-Z | 0 | - | 4.52 | 45,185 |
| History by Letter - A | 0 | - | 4.51 | 153,214 |
| History by Letter - B | 0 | - | 4.45 | 172,517 |
| History by Letter - C | 0 | - | 4.70 | 171,779 |
| History by Letter - E | 0 | - | 4.51 | 140,852 |
| History by Letter - G | 0 | - | 4.46 | 122,339 |
| History by Letter - H | 0 | - | 4.45 | 136,959 |
| History by Letter - J | 0 | - | 4.51 | 154,289 |
| History by Letter - N | 0 | - | 4.45 | 104,238 |
| History by Letter - S | 0 | - | 4.47 | 94,537 |
| History by Letter - W | 0 | - | 4.45 | 109,705 |
| History by Letter - M | 0 | - | 4.54 | 120,035 |
| History by Letter - K | 0 | - | 4.50 | 101,531 |
| History by Letter - L | 0 | - | 4.50 | 112,273 |
| History by Letter - I | 0 | - | 4.46 | 104,567 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 151,144 |
| Geography by Letter - T | 0 | - | 4.84 | 154,073 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,053 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,129 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,203 |
| 20th Century A-Z | 0 | - | 4.50 | 53,741 |
| 19th Century A-Z | 0 | - | 4.77 | 47,299 |
| 18th Century A-Z | 0 | - | 4.54 | 43,179 |
| History by Letter - D | 0 | - | 4.40 | 137,997 |
| History by Letter - F | 0 | - | 4.18 | 114,626 |
| History by Letter - O | 0 | - | 4.32 | 99,663 |
| History by Letter - P | 0 | - | 4.36 | 107,995 |
| History by Letter - Q | 0 | - | 4.34 | 80,455 |
| History by Letter - R | 0 | - | 4.26 | 122,362 |
| History by Letter - T | 0 | - | 4.39 | 105,424 |
| History by Letter - U | 0 | - | 4.19 | 100,938 |
| History by Letter - V | 0 | - | 4.27 | 80,885 |
| History by Letter - Y | 0 | - | 4.27 | 87,407 |
| History by Letter - Z | 0 | - | 4.20 | 77,171 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,256 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,292 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,011 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,577 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,701 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,287 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,370 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,920 |
| Middle East A-Z | 0 | - | 4.47 | 46,020 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,521 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,894 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,965 |
| Star Wars A-Z | 0 | - | 4.46 | 88,257 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,025 |
| WWII Geography | 0 | - | 4.81 | 120,370 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,442 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,534 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,791 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,091 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,429 |
| 16th Century A-Z | 0 | - | 4.58 | 24,902 |
| 15th Century A-Z | 0 | - | 4.49 | 23,929 |
| 14th Century A-Z | 0 | - | 4.41 | 24,391 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,748 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,680 |
| Name the English Monarchs | 0 | - | 4.91 | 502,738 |
| The Trojan War | 0 | - | 4.83 | 39,732 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,865 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,653 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,538 |
| Roman Emperors | 0 | - | 4.95 | 120,066 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,042 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,999 |
| Geography by Letter - A | 0 | - | 4.74 | 211,778 |
| Geography by Letter - B | 0 | - | 4.56 | 184,815 |
| Geography by Letter - H | 0 | - | 4.69 | 150,478 |
| Geography by Letter - C | 0 | - | 4.47 | 158,861 |
| Geography by Letter - D | 0 | - | 4.50 | 150,688 |
| Geography by Letter - E | 0 | - | 4.42 | 147,760 |
| Geography by Letter - I | 0 | - | 4.42 | 122,142 |
| Geography by Letter - K | 0 | - | 4.53 | 118,496 |
| Geography by Letter - L | 0 | - | 4.43 | 148,668 |
| Geography by Letter - M | 0 | - | 4.49 | 118,773 |
| Geography by Letter - N | 0 | - | 4.51 | 127,338 |
| Geography by Letter - P | 0 | - | 4.47 | 176,181 |
| Geography by Letter - R | 0 | - | 4.43 | 131,833 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,727 |
| Geography by Letter - U | 0 | - | 4.53 | 143,255 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,174 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,346 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,930 |
| Switzerland A-Z | 0 | - | 4.45 | 25,646 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,368 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,606 |
| Movies that Start with G | 0 | - | 4.49 | 68,563 |
| Movies that Start with I | 0 | - | 4.41 | 65,176 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,366 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,135 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,339 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,746 |
| World War II Multiple Choice | 0 | - | 4.38 | 104,179 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,996 |
| Name the War | 0 | - | 4.37 | 201,668 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,547 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,065 |
| Famous Families #1 | 0 | - | 4.20 | 83,611 |
| Names for Warriors | 0 | - | 4.40 | 36,938 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,040 |
| Military History A-Z | 0 | - | 4.20 | 21,165 |
| Ye Olde Professions | 0 | - | 4.67 | 156,795 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,367 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,478 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,688 |
| NATO Military Alphabet | 0 | - | 4.98 | 560,179 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 802,604 |
| Animals that Start with L | 0 | - | 4.47 | 101,923 |
| Animals that Start with P | 0 | - | 4.45 | 86,138 |
| Animals that Start with S | 0 | - | 4.49 | 87,355 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,478 |
| Geography by Letter on the World Map - C | 0 | - | 4.80 | 117,577 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,185 |
| Islands A-Z | 0 | - | 4.46 | 124,686 |
| Human Body A-Z | 0 | - | 4.51 | 129,180 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,581 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,630 |
| Africa A-Z | 0 | - | 4.57 | 46,608 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,795 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,306 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,815 |
| Empires by Maps | 0 | - | 4.98 | 120,495 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,725 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,366 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,394 |
| Countries by Military Spending | 0 | - | 4.93 | 177,753 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,316,917 |
| Disney A-Z | 0 | - | 4.37 | 87,136 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,134 |
| Literature by Letter - A | 0 | - | 4.24 | 32,132 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,291 |
| Companies A-Z | 0 | - | 4.30 | 42,704 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,834 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,634 |
| Geography by Letter - G | 0 | - | 4.33 | 126,425 |
| Geography by Letter - F | 0 | - | 4.27 | 137,980 |
| Geography by Letter - J | 0 | - | 4.34 | 123,046 |
| Geography by Letter - O | 0 | - | 4.37 | 129,873 |
| Geography by Letter - V | 0 | - | 4.39 | 121,894 |
| Geography by Letter - W | 0 | - | 4.39 | 114,956 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,645 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,739 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,586 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,272 |
| Video Games A-Z | 0 | - | 4.08 | 39,007 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,266 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,370 |
| Turkey A-Z | 0 | - | 4.04 | 11,853 |
| Movies that Start with A | 0 | - | 4.13 | 61,890 |
| Movies that Start with C | 0 | - | 4.30 | 61,874 |
| Movies that Start with B | 0 | - | 4.36 | 85,248 |
| Movies that Start with D | 0 | - | 4.34 | 68,456 |
| Movies that Start with E | 0 | - | 4.13 | 68,389 |
| Movies that Start with J | 0 | - | 4.18 | 76,189 |
| Movies that Start with L | 0 | - | 4.16 | 60,444 |
| Movies that Start with M | 0 | - | 4.28 | 48,248 |
| Movies that Start with N | 0 | - | 4.02 | 41,269 |
| Movies that Start with P | 0 | - | 4.25 | 54,164 |
| Movies that Start with R | 0 | - | 4.17 | 46,665 |
| Movies that Start with W | 0 | - | 4.07 | 44,275 |
| Movies that Start with T | 0 | - | 4.34 | 49,320 |
| Movies that Start with S | 0 | - | 4.35 | 56,484 |
| Movies that Start with F | 0 | - | 4.13 | 68,875 |
| Music by Letter - F | 0 | - | 4.48 | 27,012 |
| Music by Letter - A | 0 | - | 4.61 | 31,398 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,032 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,587 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,691 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,198 |
| Brand Logos That Start With M | 0 | - | 4.40 | 62,884 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,657 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,243 |
| Metals of Antiquity | 0 | - | 4.95 | 93,443 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,715 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,704 |
| Notable People of WWII | 0 | - | 4.53 | 85,937 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,176 |
| 1950s Decade Quiz | 0 | - | 4.41 | 49,280 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 44,995 |
| World War I Quiz | 0 | - | 4.78 | 101,295 |
| WWI A-Z | 0 | - | 4.50 | 38,350 |
| Oldest Things | 0 | - | 3.92 | 65,660 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,823 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,652 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,001 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,913 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.28 | 44,984 |
| NBA Basketball by Year, 2000–Present | 0 | - | 4.34 | 60,910 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,308 |
| Medieval English History | 0 | - | 4.53 | 43,510 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,746 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,241 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,155 |
