| Southernmost Countries A-Z | 0 | - | 4.95 | 153,803 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,087 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,562 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,818 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,355 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,783 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,142 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,744 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,341 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,513 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,926 |
| 20th Century A-Z | 0 | - | 4.50 | 53,839 |
| 19th Century A-Z | 0 | - | 4.77 | 47,372 |
| 18th Century A-Z | 0 | - | 4.54 | 43,242 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,446 |
| Empires A-Z | 0 | - | 4.52 | 45,279 |
| History by Letter - A | 0 | - | 4.51 | 153,460 |
| History by Letter - B | 0 | - | 4.45 | 172,776 |
| History by Letter - C | 0 | - | 4.70 | 172,059 |
| History by Letter - E | 0 | - | 4.51 | 141,065 |
| History by Letter - G | 0 | - | 4.46 | 122,517 |
| History by Letter - H | 0 | - | 4.45 | 137,151 |
| History by Letter - J | 0 | - | 4.51 | 154,529 |
| History by Letter - N | 0 | - | 4.45 | 104,391 |
| History by Letter - S | 0 | - | 4.47 | 94,691 |
| History by Letter - W | 0 | - | 4.45 | 109,886 |
| History by Letter - M | 0 | - | 4.54 | 120,199 |
| History by Letter - K | 0 | - | 4.50 | 101,683 |
| History by Letter - L | 0 | - | 4.50 | 112,453 |
| History by Letter - I | 0 | - | 4.46 | 104,724 |
| 16th Century A-Z | 0 | - | 4.58 | 24,947 |
| 15th Century A-Z | 0 | - | 4.49 | 23,966 |
| 14th Century A-Z | 0 | - | 4.41 | 24,430 |
| 17th Century A-Z | 0 | - | 4.78 | 34,686 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,125 |
| Geography by Letter - T | 0 | - | 4.84 | 154,433 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,137 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,759 |
| WWI... or WWII? | 0 | - | 4.85 | 142,670 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,203 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,226 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,264 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,451 |
| Islands A-Z | 0 | - | 4.46 | 125,845 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,305 |
| Human Body A-Z | 0 | - | 4.51 | 129,393 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,438 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,754 |
| Africa A-Z | 0 | - | 4.57 | 46,686 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 57,978 |
| History by Letter - D | 0 | - | 4.40 | 138,188 |
| History by Letter - F | 0 | - | 4.18 | 114,776 |
| History by Letter - O | 0 | - | 4.32 | 99,789 |
| History by Letter - P | 0 | - | 4.36 | 108,148 |
| History by Letter - Q | 0 | - | 4.34 | 80,551 |
| History by Letter - R | 0 | - | 4.26 | 122,499 |
| History by Letter - T | 0 | - | 4.39 | 105,554 |
| History by Letter - U | 0 | - | 4.19 | 101,064 |
| History by Letter - V | 0 | - | 4.27 | 80,995 |
| History by Letter - Y | 0 | - | 4.27 | 87,509 |
| History by Letter - Z | 0 | - | 4.20 | 77,257 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,289 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,564 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,377 |
| Middle East A-Z | 0 | - | 4.47 | 46,154 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,430 |
| Military History A-Z | 0 | - | 4.20 | 21,196 |
| Notable People of WWII | 0 | - | 4.53 | 86,040 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,316 |
| World War I Quiz | 0 | - | 4.78 | 101,460 |
| WWI A-Z | 0 | - | 4.51 | 38,443 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,223 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,575 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,009 |
| Double Letters A-Z | 0 | - | 4.51 | 27,176 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,439 |
| Canada A-Z | 0 | - | 4.73 | 32,893 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,765 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,722 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,725 |
| WWII Trivia #1 | 0 | - | 4.36 | 178,033 |
| WWII Geography | 0 | - | 4.81 | 120,591 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,795 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,080 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,684 |
| NATO Military Alphabet | 0 | - | 4.98 | 561,668 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,049 |
| Geography by Letter - A | 0 | - | 4.74 | 212,141 |
| Geography by Letter - B | 0 | - | 4.56 | 185,148 |
| Geography by Letter - H | 0 | - | 4.69 | 150,738 |
| Geography by Letter - C | 0 | - | 4.47 | 159,153 |
| Geography by Letter - D | 0 | - | 4.50 | 151,174 |
| Geography by Letter - E | 0 | - | 4.42 | 148,025 |
| Geography by Letter - I | 0 | - | 4.42 | 122,336 |
| Geography by Letter - K | 0 | - | 4.53 | 118,691 |
| Geography by Letter - L | 0 | - | 4.43 | 148,897 |
| Geography by Letter - M | 0 | - | 4.49 | 118,969 |
| Geography by Letter - N | 0 | - | 4.51 | 127,524 |
| Geography by Letter - P | 0 | - | 4.47 | 176,413 |
| Geography by Letter - R | 0 | - | 4.43 | 132,103 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,953 |
| Geography by Letter - U | 0 | - | 4.53 | 143,485 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,238 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,708 |
| American Football A-Z | 0 | - | 4.26 | 14,539 |
| MLB Baseball A-Z #2 | 0 | - | 4.11 | 17,123 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,421 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,000 |
| Switzerland A-Z | 0 | - | 4.45 | 25,693 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,424 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,677 |
| Movies that Start with G | 0 | - | 4.49 | 68,635 |
| Movies that Start with I | 0 | - | 4.41 | 65,247 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,138 |
| Empires by Maps | 0 | - | 4.98 | 120,995 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,497 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,565 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,842 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,891 |
| World War II Multiple Choice | 0 | - | 4.38 | 104,310 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,044 |
| Name the War | 0 | - | 4.37 | 202,403 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,577 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,228 |
| Famous Families #1 | 0 | - | 4.20 | 83,662 |
| Names for Warriors | 0 | - | 4.40 | 36,988 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,210 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,478 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,412 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,508 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,722 |
| Countries by Military Spending | 0 | - | 4.93 | 178,422 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,272 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,186 |
| Animals that Start with L | 0 | - | 4.47 | 102,260 |
| Animals that Start with P | 0 | - | 4.45 | 86,309 |
| Animals that Start with S | 0 | - | 4.49 | 87,514 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,727 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,110 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,372 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,412 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,176 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,274 |
| Brand Logos That Start With D | 0 | - | 4.35 | 61,820 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,868 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,454 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,123 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,911 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,320,118 |
| Disney A-Z | 0 | - | 4.37 | 87,285 |
| Literature by Letter - A | 0 | - | 4.24 | 32,231 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,336 |
| Companies A-Z | 0 | - | 4.30 | 42,724 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,677 |
| Geography by Letter - G | 0 | - | 4.33 | 126,643 |
| Geography by Letter - F | 0 | - | 4.27 | 138,202 |
| Geography by Letter - J | 0 | - | 4.34 | 123,251 |
| Geography by Letter - O | 0 | - | 4.37 | 130,075 |
| Geography by Letter - V | 0 | - | 4.39 | 122,127 |
| Geography by Letter - W | 0 | - | 4.39 | 115,129 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,831 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,882 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,743 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,313 |
| Video Games A-Z | 0 | - | 4.05 | 39,098 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,321 |
| South America A-Z | 0 | - | 4.13 | 10,924 |
| Movies that Start with A | 0 | - | 4.13 | 61,950 |
| Movies that Start with C | 0 | - | 4.30 | 61,940 |
| Movies that Start with B | 0 | - | 4.36 | 85,327 |
| Movies that Start with D | 0 | - | 4.34 | 68,512 |
| Movies that Start with E | 0 | - | 4.13 | 68,441 |
| Movies that Start with J | 0 | - | 4.18 | 76,259 |
| Movies that Start with L | 0 | - | 4.16 | 60,489 |
| Movies that Start with M | 0 | - | 4.28 | 48,295 |
| Movies that Start with N | 0 | - | 4.02 | 41,305 |
| Movies that Start with P | 0 | - | 4.25 | 54,199 |
| Movies that Start with R | 0 | - | 4.17 | 46,706 |
| Movies that Start with W | 0 | - | 4.07 | 44,298 |
| Movies that Start with T | 0 | - | 4.34 | 49,368 |
| Movies that Start with S | 0 | - | 4.35 | 56,543 |
| Movies that Start with F | 0 | - | 4.13 | 68,934 |
| Music by Letter - F | 0 | - | 4.48 | 27,055 |
| Music by Letter - A | 0 | - | 4.61 | 31,442 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,297 |
| Metals of Antiquity | 0 | - | 4.95 | 93,622 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,884 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,647 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 45,200 |
| Oldest Things | 0 | - | 3.92 | 65,678 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,835 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,769 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,414 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,756 |
| Star Wars A-Z | 0 | - | 4.46 | 88,459 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,679 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,252 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,547 |
| Musical Acts by Letter - M | 0 | - | 4.15 | 93,533 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,411 |
