| History by Letter - C | 0 | - | 4.71 | 155,827 |
| History by Letter - E | 0 | - | 4.49 | 129,051 |
| History by Letter - G | 0 | - | 4.46 | 111,997 |
| History by Letter - H | 0 | - | 4.42 | 125,082 |
| History by Letter - J | 0 | - | 4.49 | 141,795 |
| History by Letter - N | 0 | - | 4.44 | 95,534 |
| History by Letter - S | 0 | - | 4.46 | 86,112 |
| History by Letter - W | 0 | - | 4.45 | 99,907 |
| History by Letter - M | 0 | - | 4.54 | 110,540 |
| History by Letter - K | 0 | - | 4.47 | 93,359 |
| History by Letter - L | 0 | - | 4.47 | 103,479 |
| History by Letter - I | 0 | - | 4.46 | 96,078 |
| History by Letter - D | 0 | - | 4.34 | 127,222 |
| History by Letter - F | 0 | - | 4.18 | 105,319 |
| History by Letter - O | 0 | - | 4.30 | 92,234 |
| History by Letter - P | 0 | - | 4.37 | 99,522 |
| History by Letter - Q | 0 | - | 4.35 | 74,791 |
| History by Letter - R | 0 | - | 4.22 | 113,826 |
| History by Letter - T | 0 | - | 4.40 | 97,522 |
| History by Letter - U | 0 | - | 4.18 | 93,407 |
| History by Letter - V | 0 | - | 4.28 | 75,365 |
| History by Letter - Y | 0 | - | 4.28 | 81,638 |
| History by Letter - Z | 0 | - | 4.21 | 72,370 |
| The 3rd and 4th Century | 0 | - | 4.53 | 20,427 |
| Empires A-Z | 0 | - | 4.50 | 40,462 |
| Same Start and End Letter - History #1 | 0 | - | 4.12 | 23,578 |
| Same Start and End Letter - History #2 | 0 | - | 4.09 | 23,652 |
| History Containing the Letter X | 0 | - | 4.28 | 13,936 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 110,370 |
| Geography by Letter - T | 0 | - | 4.82 | 126,265 |
| People in History A-Z #1 | 0 | - | 4.66 | 92,056 |
| People in History A-Z #2 | 0 | - | 4.46 | 50,771 |
| People in History A-Z #3 | 0 | - | 4.47 | 42,766 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 71,069 |
| Geography by Letter on the World Map - A | 0 | - | 4.83 | 94,480 |
| Geography by Letter on the World Map - C | 0 | - | 4.84 | 105,147 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 140,726 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 183,280 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 163,099 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 178,556 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 289,008 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 169,455 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.82 | 66,657 |
| 20th Century A-Z | 0 | - | 4.49 | 39,508 |
| 19th Century A-Z | 0 | - | 4.79 | 35,255 |
| 18th Century A-Z | 0 | - | 4.59 | 32,287 |
| Famous Empires in History | 0 | - | 4.83 | 106,251 |
| Famous Firsts #1 | 0 | - | 4.42 | 66,221 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 67,272 |
| Invasions | 0 | - | 4.70 | 90,463 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 217,184 |
| Name an Official Language A-Z | 0 | - | 4.92 | 137,271 |
| People Depicted in Paintings | 0 | - | 4.56 | 41,644 |
| Normandy D-Day Beaches | 0 | - | 4.81 | 37,151 |
| Territory Changes in World War I | 0 | - | 4.87 | 41,048 |
| 16th Century A-Z | 0 | - | 4.54 | 16,087 |
| 15th Century A-Z | 0 | - | 4.45 | 19,751 |
| Brand Logos That Start with A | 0 | - | 4.52 | 58,214 |
| Brand Logos That Start With B | 0 | - | 4.44 | 50,046 |
| Brand Logos That Start With M | 0 | - | 4.41 | 50,835 |
| NATO Military Alphabet | 0 | - | 4.98 | 507,370 |
| Geography by Letter - A | 0 | - | 4.66 | 195,287 |
| Geography by Letter - B | 0 | - | 4.55 | 168,459 |
| Geography by Letter - H | 0 | - | 4.75 | 136,575 |
| Geography by Letter - C | 0 | - | 4.50 | 144,598 |
| Geography by Letter - D | 0 | - | 4.47 | 137,864 |
| Geography by Letter - I | 0 | - | 4.43 | 112,024 |
| Geography by Letter - K | 0 | - | 4.54 | 107,965 |
| Geography by Letter - L | 0 | - | 4.45 | 136,942 |
| Geography by Letter - M | 0 | - | 4.47 | 107,423 |
| Geography by Letter - N | 0 | - | 4.53 | 116,593 |
| Geography by Letter - P | 0 | - | 4.46 | 164,077 |
| Geography by Letter - R | 0 | - | 4.43 | 115,839 |
| Geography by Letter - S #1 | 0 | - | 4.79 | 117,991 |
| Geography by Letter - U | 0 | - | 4.52 | 120,279 |
| Geography by Letter - W | 0 | - | 4.43 | 97,927 |
| Asian Geography By Letter - K | 0 | - | 4.76 | 55,949 |
| A to Z: Musical Terms | 0 | - | 4.44 | 38,090 |
| Geography A-Z #2 | 0 | - | 4.46 | 49,815 |
| Geography A-Z #5 | 0 | - | 4.42 | 35,092 |
| Geography A-Z #1 | 0 | - | 4.55 | 66,387 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 110,008 |
| Movies that Start with G | 0 | - | 4.49 | 65,140 |
| Movies that Start with I | 0 | - | 4.41 | 62,045 |
| Former Countries by Territory Map | 0 | - | 4.96 | 87,552 |
| Empires by Maps | 0 | - | 4.98 | 97,408 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 47,173 |
| Famous Battles Quiz | 0 | - | 4.25 | 46,906 |
| Name the War Quiz | 0 | - | 4.39 | 191,665 |
| Famous U.S. Generals | 0 | - | 4.25 | 37,121 |
| Religions by Country of Origin Quiz | 0 | - | 4.29 | 73,152 |
| Famous Families #1 | 0 | - | 4.27 | 80,161 |
| Names for Warriors | 0 | - | 4.40 | 34,800 |
| Famous Firsts #2 | 0 | - | 4.01 | 79,097 |
| People in History A-Z #5 | 0 | - | 4.08 | 30,185 |
| People in History A-Z #4 | 0 | - | 4.13 | 21,493 |
| Countries by Military Spending | 0 | - | 4.93 | 162,095 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.91 | 99,433 |
| Art Works Picture Quiz #1 | 0 | - | 4.50 | 97,716 |
| Art Works Picture Quiz #2 | 0 | - | 4.47 | 87,115 |
| WWII A-Z #1 | 0 | - | 4.79 | 95,092 |
| WWII A-Z #2 | 0 | - | 4.47 | 50,700 |
| 100 Most Common English Words | 0 | - | 4.90 | 1,191,167 |
| Animals that Start with L | 0 | - | 4.44 | 95,287 |
| Animals that Start with P | 0 | - | 4.42 | 80,690 |
| Animals that Start with S | 0 | - | 4.49 | 81,362 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 80,240 |
| World Cities A-Z #1 | 0 | - | 4.54 | 59,397 |
| Islands A-Z | 0 | - | 4.47 | 107,207 |
| World Cities A-Z #2 | 0 | - | 4.46 | 52,001 |
| Human Body A-Z | 0 | - | 4.49 | 109,596 |
| Africa A-Z | 0 | - | 4.55 | 44,103 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 43,254 |
| Ethnic Groups A-Z | 0 | - | 4.58 | 38,761 |
| Space Exploration Trivia | 0 | - | 4.36 | 33,709 |
| 14th Century A-Z | 0 | - | 4.33 | 15,905 |
| 17th Century A-Z | 0 | - | 4.61 | 24,724 |
| Military History A-Z | 0 | - | 4.17 | 19,790 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 13,652 |
| Brand Logos That Start With D | 0 | - | 4.35 | 51,344 |
| Brand Logos That Start With C | 0 | - | 4.14 | 41,941 |
| Brand Logos That Start With L | 0 | - | 4.36 | 49,524 |
| Brand Logos That Start With S | 0 | - | 4.37 | 46,937 |
| Disney A-Z | 0 | - | 4.40 | 79,343 |
| Classic Novels by Plot #2 | 0 | - | 4.81 | 31,586 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.41 | 14,066 |
| Companies A-Z | 0 | - | 4.31 | 41,578 |
| Religion A-Z #1 | 0 | - | 4.31 | 59,052 |
| Religion A-Z #2 | 0 | - | 4.50 | 26,624 |
| Geography by Letter - E | 0 | - | 4.40 | 135,532 |
| Geography by Letter - G | 0 | - | 4.36 | 115,362 |
| Geography by Letter - F | 0 | - | 4.27 | 126,328 |
| Geography by Letter - J | 0 | - | 4.36 | 112,656 |
| Geography by Letter - O | 0 | - | 4.38 | 118,895 |
| Geography by Letter - V | 0 | - | 4.38 | 98,120 |
| Geography by Letter - Y | 0 | - | 4.35 | 93,214 |
| Geography by Letter - Z | 0 | - | 4.05 | 64,847 |
| Geography by Letter - Q | 0 | - | 4.37 | 61,297 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.20 | 33,527 |
| Geography Containing the Letter X | 0 | - | 4.40 | 32,342 |
| Video Games A-Z | 0 | - | 4.04 | 35,765 |
| Geography A-Z #3 | 0 | - | 4.21 | 37,044 |
| Movies that Start with A | 0 | - | 4.12 | 58,889 |
| Movies that Start with C | 0 | - | 4.30 | 58,378 |
| Movies that Start with B | 0 | - | 4.37 | 81,209 |
| Movies that Start with D | 0 | - | 4.36 | 65,840 |
| Movies that Start with E | 0 | - | 4.16 | 65,737 |
| Movies that Start with J | 0 | - | 4.22 | 72,999 |
| Movies that Start with L | 0 | - | 4.17 | 58,073 |
| Movies that Start with M | 0 | - | 4.27 | 46,289 |
| Movies that Start with N | 0 | - | 4.06 | 39,497 |
| Movies that Start with P | 0 | - | 4.25 | 52,208 |
| Movies that Start with R | 0 | - | 4.16 | 44,127 |
| Movies that Start with W | 0 | - | 4.06 | 42,680 |
| Movies that Start with T | 0 | - | 4.34 | 47,094 |
| Movies that Start with S | 0 | - | 4.37 | 54,113 |
| Movies that Start with F | 0 | - | 4.15 | 66,224 |
| Music by Letter - F | 0 | - | 4.45 | 25,064 |
| Music by Letter - P | 0 | - | 4.41 | 18,097 |
| Music by Letter - A | 0 | - | 4.60 | 29,119 |
| Metals of Antiquity | 0 | - | 4.94 | 86,402 |
| Cradles of Civilization | 0 | - | 4.42 | 33,127 |
| Materials From History #1 | 0 | - | 4.54 | 45,575 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 40,632 |
| Mythical Creatures Quiz #1 | 0 | - | 4.91 | 663,097 |
| WWI... or WWII? | 0 | - | 4.84 | 126,222 |
| Oldest Things | 0 | - | 3.96 | 64,787 |
| Famous Homes - Who Lived There? | 0 | - | 4.07 | 26,251 |
| Biggest Nations and Empires Ever | 0 | - | 4.55 | 135,414 |
| Famous Explorers | 0 | - | 4.65 | 33,024 |
| Answers by Time Period | 0 | - | 4.50 | 43,108 |
| Territorial Accessions | 0 | - | 4.43 | 32,516 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 13,454 |
| Years in History #1 - Multiple Choice | 0 | - | 4.84 | 63,976 |
| Most Common English Verbs - Extreme | 0 | - | 4.95 | 140,065 |
| Top Five Exporting Partners by Country | 0 | - | 4.85 | 62,745 |
| The Americas Geography by Letter - B | 0 | - | 4.50 | 49,184 |
| The Americas Geography by Letter - S | 0 | - | 4.56 | 41,770 |
| Middle East A-Z | 0 | - | 4.46 | 43,520 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.44 | 41,782 |
| Google What's the Difference? - History | 0 | - | 4.21 | 43,944 |
| Art Works Picture Quiz #3 | 0 | - | 4.39 | 41,729 |
| Notable People of WWII | 0 | - | 4.53 | 81,083 |
| WWII Trivia #2 | 0 | - | 4.53 | 96,615 |
| World War I Quiz | 0 | - | 4.79 | 93,914 |
| WWI A-Z | 0 | - | 4.48 | 35,827 |
| Most Important People in History | 0 | - | 3.97 | 47,003 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.40 | 41,000 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.54 | 28,191 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.51 | 24,297 |
| Top Arms Exporting Countries | 0 | - | 4.95 | 77,669 |
| Star Wars A-Z | 0 | - | 4.44 | 80,784 |
| Monarchies of the World | 0 | - | 4.93 | 154,413 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 82,837 |
| Countries where the Sea Freezes | 0 | - | 4.90 | 82,372 |
| Largest Countries Without Deserts | 0 | - | 4.87 | 67,356 |
| Numbers Tile Select Quiz | 0 | - | 4.99 | 65,729 |
| Literature by Letter - A | 0 | - | 4.21 | 29,697 |
| Literature by Letter - D | 0 | - | 4.24 | 18,961 |
| Literature by Letter - C | 0 | - | 4.32 | 24,715 |
