| 20th Century A-Z | 0 | - | 4.50 | 53,918 |
| 19th Century A-Z | 0 | - | 4.77 | 47,421 |
| 18th Century A-Z | 0 | - | 4.54 | 43,278 |
| 16th Century A-Z | 0 | - | 4.58 | 24,984 |
| 14th Century A-Z | 0 | - | 4.41 | 24,470 |
| 17th Century A-Z | 0 | - | 4.78 | 34,726 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,946 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,413 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,736 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,631 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,665 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,063 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,318 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,257 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,679 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,528 |
| Empires A-Z | 0 | - | 4.52 | 45,376 |
| History by Letter - A | 0 | - | 4.51 | 153,693 |
| History by Letter - B | 0 | - | 4.45 | 173,045 |
| History by Letter - C | 0 | - | 4.70 | 172,381 |
| History by Letter - E | 0 | - | 4.51 | 141,289 |
| History by Letter - G | 0 | - | 4.46 | 122,718 |
| History by Letter - H | 0 | - | 4.45 | 137,379 |
| History by Letter - J | 0 | - | 4.51 | 154,770 |
| History by Letter - N | 0 | - | 4.45 | 104,655 |
| History by Letter - S | 0 | - | 4.47 | 94,836 |
| History by Letter - W | 0 | - | 4.45 | 110,065 |
| History by Letter - M | 0 | - | 4.54 | 120,523 |
| History by Letter - K | 0 | - | 4.50 | 101,847 |
| History by Letter - L | 0 | - | 4.50 | 112,640 |
| History by Letter - I | 0 | - | 4.46 | 104,873 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,919 |
| Geography by Letter - T | 0 | - | 4.84 | 154,845 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,584 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,385 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,390 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,604 |
| Islands A-Z | 0 | - | 4.45 | 126,822 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,442 |
| Human Body A-Z | 0 | - | 4.51 | 129,541 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,858 |
| Africa A-Z | 0 | - | 4.57 | 46,739 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,144 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,742 |
| History by Letter - D | 0 | - | 4.40 | 138,400 |
| History by Letter - F | 0 | - | 4.18 | 114,936 |
| History by Letter - O | 0 | - | 4.32 | 99,942 |
| History by Letter - P | 0 | - | 4.36 | 108,313 |
| History by Letter - Q | 0 | - | 4.34 | 80,686 |
| History by Letter - R | 0 | - | 4.26 | 122,673 |
| History by Letter - T | 0 | - | 4.39 | 105,680 |
| History by Letter - U | 0 | - | 4.19 | 101,202 |
| History by Letter - V | 0 | - | 4.27 | 81,115 |
| History by Letter - Y | 0 | - | 4.27 | 87,629 |
| History by Letter - Z | 0 | - | 4.20 | 77,373 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,320 |
| History Containing the Letter X | 0 | - | 4.47 | 27,126 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,819 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,648 |
| Middle East A-Z | 0 | - | 4.47 | 46,208 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,492 |
| Military History A-Z | 0 | - | 4.20 | 21,223 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,344 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,730 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,089 |
| Double Letters A-Z | 0 | - | 4.51 | 27,208 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,860 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,489 |
| Canada A-Z | 0 | - | 4.73 | 32,931 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,600 |
| Territory Changes in World War I | 0 | - | 4.87 | 47,047 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,787 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,762 |
| History Ending in Z | 0 | - | 4.35 | 13,578 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,778 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,257 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,819 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,157 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,943 |
| NATO Military Alphabet | 0 | - | 4.98 | 563,172 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,094 |
| Geography by Letter - A | 0 | - | 4.74 | 212,546 |
| Geography by Letter - B | 0 | - | 4.56 | 185,525 |
| Geography by Letter - H | 0 | - | 4.69 | 151,055 |
| Geography by Letter - C | 0 | - | 4.48 | 159,496 |
| Geography by Letter - D | 0 | - | 4.50 | 151,481 |
| Geography by Letter - E | 0 | - | 4.42 | 148,305 |
| Geography by Letter - I | 0 | - | 4.42 | 122,577 |
| Geography by Letter - K | 0 | - | 4.54 | 118,929 |
| Geography by Letter - L | 0 | - | 4.44 | 149,405 |
| Geography by Letter - M | 0 | - | 4.49 | 119,415 |
| Geography by Letter - N | 0 | - | 4.51 | 127,780 |
| Geography by Letter - P | 0 | - | 4.47 | 176,712 |
| Geography by Letter - R | 0 | - | 4.43 | 132,413 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,242 |
| Geography by Letter - U | 0 | - | 4.53 | 143,741 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,298 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,745 |
| American Football A-Z | 0 | - | 4.26 | 14,549 |
| MLB Baseball A-Z #2 | 0 | - | 4.11 | 17,141 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,513 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,083 |
| Switzerland A-Z | 0 | - | 4.45 | 25,740 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,475 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,757 |
| Movies that Start with G | 0 | - | 4.49 | 68,754 |
| Movies that Start with I | 0 | - | 4.41 | 65,363 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,471 |
| Empires by Maps | 0 | - | 4.98 | 121,473 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,675 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,731 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,912 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,010 |
| WWI... or WWII? | 0 | - | 4.85 | 143,035 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,087 |
| Name the War | 0 | - | 4.37 | 202,627 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,608 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,401 |
| Famous Families #1 | 0 | - | 4.20 | 83,704 |
| Names for Warriors | 0 | - | 4.40 | 37,026 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,388 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,540 |
| 2010s Decade Quiz | 0 | - | 4.53 | 103,478 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,445 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,539 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,747 |
| Countries by Military Spending | 0 | - | 4.93 | 178,756 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,479 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,497 |
| Animals that Start with L | 0 | - | 4.47 | 102,354 |
| Animals that Start with P | 0 | - | 4.45 | 86,400 |
| Animals that Start with S | 0 | - | 4.49 | 87,603 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,944 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,357 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,454 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,451 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,204 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,462 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,016 |
| Brand Logos That Start With C | 0 | - | 4.20 | 50,001 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,718 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,346 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,101 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,323,195 |
| Disney A-Z | 0 | - | 4.37 | 87,404 |
| Literature by Letter - A | 0 | - | 4.24 | 32,310 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,384 |
| Companies A-Z | 0 | - | 4.30 | 42,755 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,711 |
| Geography by Letter - G | 0 | - | 4.33 | 126,898 |
| Geography by Letter - F | 0 | - | 4.28 | 138,625 |
| Geography by Letter - J | 0 | - | 4.35 | 123,502 |
| Geography by Letter - O | 0 | - | 4.37 | 130,309 |
| Geography by Letter - V | 0 | - | 4.39 | 122,382 |
| Geography by Letter - W | 0 | - | 4.39 | 115,329 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,019 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,056 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,945 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,353 |
| Video Games A-Z | 0 | - | 4.05 | 39,179 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,366 |
| South America A-Z | 0 | - | 4.15 | 10,938 |
| Movies that Start with A | 0 | - | 4.13 | 62,082 |
| Movies that Start with C | 0 | - | 4.30 | 62,070 |
| Movies that Start with B | 0 | - | 4.36 | 85,638 |
| Movies that Start with D | 0 | - | 4.34 | 68,609 |
| Movies that Start with E | 0 | - | 4.13 | 68,553 |
| Movies that Start with J | 0 | - | 4.18 | 76,369 |
| Movies that Start with L | 0 | - | 4.16 | 60,562 |
| Movies that Start with M | 0 | - | 4.28 | 48,366 |
| Movies that Start with N | 0 | - | 4.02 | 41,358 |
| Movies that Start with P | 0 | - | 4.25 | 54,256 |
| Movies that Start with R | 0 | - | 4.17 | 46,774 |
| Movies that Start with W | 0 | - | 4.07 | 44,352 |
| Movies that Start with T | 0 | - | 4.34 | 49,427 |
| Movies that Start with S | 0 | - | 4.35 | 56,603 |
| Movies that Start with F | 0 | - | 4.13 | 69,035 |
| Music by Letter - F | 0 | - | 4.47 | 27,107 |
| Music by Letter - A | 0 | - | 4.61 | 31,495 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,343 |
| Metals of Antiquity | 0 | - | 4.95 | 93,793 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,029 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,561 |
| Notable People of WWII | 0 | - | 4.53 | 86,111 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,430 |
| World War I Quiz | 0 | - | 4.78 | 101,607 |
| WWI A-Z | 0 | - | 4.51 | 38,519 |
| Oldest Things | 0 | - | 3.92 | 65,700 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,849 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,929 |
| 1970s Decade Quiz | 0 | - | 4.21 | 58,502 |
| 2000s Decade Quiz | 0 | - | 4.23 | 122,786 |
| 1980s Decade Quiz | 0 | - | 4.38 | 85,812 |
| 1850s Decade Quiz | 0 | - | 4.42 | 35,360 |
| 1790s Decade Quiz | 0 | - | 4.55 | 33,799 |
| 1800s Decade Quiz | 0 | - | 4.47 | 32,071 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,524 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,779 |
| Star Wars A-Z | 0 | - | 4.46 | 88,661 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,187 |
