| Southernmost Countries A-Z | 0 | - | 4.95 | 154,157 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,762 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,977 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,061 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,075 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,330 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,548 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,795 |
| Name an Official Language A-Z | 0 | - | 4.91 | 177,046 |
| 20th Century A-Z | 0 | - | 4.50 | 54,004 |
| 19th Century A-Z | 0 | - | 4.77 | 47,490 |
| 18th Century A-Z | 0 | - | 4.54 | 43,342 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,633 |
| Empires A-Z | 0 | - | 4.52 | 45,480 |
| History by Letter - A | 0 | - | 4.51 | 153,932 |
| History by Letter - B | 0 | - | 4.45 | 173,339 |
| History by Letter - C | 0 | - | 4.70 | 172,689 |
| History by Letter - E | 0 | - | 4.51 | 141,527 |
| History by Letter - G | 0 | - | 4.46 | 122,919 |
| History by Letter - H | 0 | - | 4.45 | 137,612 |
| History by Letter - J | 0 | - | 4.51 | 155,040 |
| History by Letter - N | 0 | - | 4.45 | 104,826 |
| History by Letter - S | 0 | - | 4.47 | 95,002 |
| History by Letter - W | 0 | - | 4.45 | 110,246 |
| History by Letter - M | 0 | - | 4.54 | 120,723 |
| History by Letter - K | 0 | - | 4.50 | 102,032 |
| History by Letter - L | 0 | - | 4.50 | 112,832 |
| History by Letter - I | 0 | - | 4.46 | 105,052 |
| 16th Century A-Z | 0 | - | 4.59 | 25,031 |
| 15th Century A-Z | 0 | - | 4.50 | 24,026 |
| 14th Century A-Z | 0 | - | 4.41 | 24,515 |
| 17th Century A-Z | 0 | - | 4.78 | 34,770 |
| Monarchies of the World | 0 | - | 4.94 | 170,367 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,524 |
| Geography by Letter - T | 0 | - | 4.84 | 155,325 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,749 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,500 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,465 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 77,904 |
| Islands A-Z | 0 | - | 4.46 | 127,817 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 60,382 |
| Human Body A-Z | 0 | - | 4.51 | 130,083 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,037 |
| Africa A-Z | 0 | - | 4.57 | 46,786 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,269 |
| History by Letter - D | 0 | - | 4.40 | 138,616 |
| History by Letter - F | 0 | - | 4.19 | 115,106 |
| History by Letter - O | 0 | - | 4.32 | 100,299 |
| History by Letter - P | 0 | - | 4.36 | 108,493 |
| History by Letter - Q | 0 | - | 4.34 | 80,815 |
| History by Letter - R | 0 | - | 4.26 | 122,840 |
| History by Letter - T | 0 | - | 4.39 | 105,830 |
| History by Letter - U | 0 | - | 4.19 | 101,346 |
| History by Letter - V | 0 | - | 4.27 | 81,237 |
| History by Letter - Y | 0 | - | 4.27 | 87,744 |
| History by Letter - Z | 0 | - | 4.20 | 77,473 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,354 |
| History Containing the Letter X | 0 | - | 4.47 | 27,154 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,601 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 83,100 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,955 |
| Middle East A-Z | 0 | - | 4.47 | 46,254 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,568 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,469 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,902 |
| Military History A-Z | 0 | - | 4.20 | 21,262 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,136 |
| Double Letters A-Z | 0 | - | 4.51 | 27,229 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,939 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,538 |
| Canada A-Z | 0 | - | 4.73 | 32,979 |
| Four Letter Geography A-Z #1 | 0 | - | 4.58 | 32,692 |
| Normandy D-Day Beaches | 0 | - | 4.84 | 40,747 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,276 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,810 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,798 |
| History Ending in Z | 0 | - | 4.35 | 13,604 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,838 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,249 |
| NATO Military Alphabet | 0 | - | 4.98 | 564,604 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,139 |
| Geography by Letter - A | 0 | - | 4.74 | 212,926 |
| Geography by Letter - B | 0 | - | 4.56 | 185,932 |
| Geography by Letter - H | 0 | - | 4.69 | 151,542 |
| Geography by Letter - C | 0 | - | 4.48 | 159,825 |
| Geography by Letter - D | 0 | - | 4.50 | 151,796 |
| Geography by Letter - E | 0 | - | 4.42 | 148,625 |
| Geography by Letter - I | 0 | - | 4.42 | 122,831 |
| Geography by Letter - K | 0 | - | 4.54 | 119,315 |
| Geography by Letter - L | 0 | - | 4.44 | 149,677 |
| Geography by Letter - M | 0 | - | 4.50 | 119,660 |
| Geography by Letter - N | 0 | - | 4.51 | 128,023 |
| Geography by Letter - P | 0 | - | 4.47 | 176,976 |
| Geography by Letter - R | 0 | - | 4.43 | 132,743 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,560 |
| Geography by Letter - U | 0 | - | 4.52 | 144,191 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,383 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,789 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,575 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,166 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,515 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,834 |
| Movies that Start with G | 0 | - | 4.49 | 68,839 |
| Movies that Start with I | 0 | - | 4.41 | 65,435 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,423 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,920 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,156 |
| Name the War | 0 | - | 4.37 | 202,901 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,644 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,456 |
| Famous Families #1 | 0 | - | 4.20 | 83,756 |
| Names for Warriors | 0 | - | 4.40 | 37,065 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,440 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,196 |
| Islam A-Z | 0 | - | 4.30 | 24,219 |
| American Football A-Z | 0 | - | 4.26 | 14,559 |
| MLB Baseball A-Z #2 | 0 | - | 4.11 | 17,157 |
| Switzerland A-Z | 0 | - | 4.45 | 25,776 |
| Former Countries by Territory Map | 0 | - | 4.96 | 104,052 |
| Empires by Maps | 0 | - | 4.98 | 122,300 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,866 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,904 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,962 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,187 |
| The 7 Wonders of the Ancient World | 0 | - | 4.86 | 82,641 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,502 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,584 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,780 |
| Countries by Military Spending | 0 | - | 4.93 | 179,071 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,326,519 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,603 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,790 |
| Animals that Start with L | 0 | - | 4.47 | 102,469 |
| Animals that Start with P | 0 | - | 4.45 | 86,496 |
| Animals that Start with S | 0 | - | 4.49 | 87,696 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 91,164 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,632 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,538 |
| Metals of Antiquity | 0 | - | 4.95 | 93,973 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,179 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,487 |
| WWI... or WWII? | 0 | - | 4.85 | 143,626 |
| Oldest Things | 0 | - | 3.92 | 65,715 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,866 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,951 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,256 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,669 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,719 |
| Brand Logos That Start With D | 0 | - | 4.37 | 62,261 |
| Brand Logos That Start With C | 0 | - | 4.21 | 50,185 |
| Brand Logos That Start With L | 0 | - | 4.40 | 61,977 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,597 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,367 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,639 |
| Disney A-Z | 0 | - | 4.37 | 87,524 |
| Literature by Letter - A | 0 | - | 4.24 | 32,382 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,421 |
| Companies A-Z | 0 | - | 4.30 | 42,780 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,476 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,751 |
| Geography by Letter - G | 0 | - | 4.33 | 127,145 |
| Geography by Letter - F | 0 | - | 4.28 | 138,847 |
| Geography by Letter - J | 0 | - | 4.35 | 123,723 |
| Geography by Letter - O | 0 | - | 4.37 | 130,539 |
| Geography by Letter - V | 0 | - | 4.39 | 122,675 |
| Geography by Letter - W | 0 | - | 4.39 | 115,533 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,237 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,233 |
| Geography by Letter - Q | 0 | - | 4.38 | 70,129 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,386 |
| Video Games A-Z | 0 | - | 4.05 | 39,262 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,413 |
| South America A-Z | 0 | - | 4.15 | 10,950 |
| Movies that Start with A | 0 | - | 4.13 | 62,155 |
| Movies that Start with C | 0 | - | 4.30 | 62,156 |
| Movies that Start with B | 0 | - | 4.36 | 85,717 |
| Movies that Start with D | 0 | - | 4.34 | 68,679 |
| Movies that Start with E | 0 | - | 4.13 | 68,618 |
| Movies that Start with J | 0 | - | 4.18 | 76,431 |
| Movies that Start with L | 0 | - | 4.16 | 60,617 |
| Movies that Start with M | 0 | - | 4.28 | 48,412 |
| Movies that Start with N | 0 | - | 4.02 | 41,405 |
| Movies that Start with P | 0 | - | 4.25 | 54,302 |
| Movies that Start with R | 0 | - | 4.17 | 46,829 |
| Movies that Start with W | 0 | - | 4.07 | 44,378 |
| Movies that Start with T | 0 | - | 4.34 | 49,471 |
| Movies that Start with S | 0 | - | 4.35 | 56,653 |
| Movies that Start with F | 0 | - | 4.13 | 69,102 |
| Music by Letter - F | 0 | - | 4.47 | 27,145 |
| Music by Letter - A | 0 | - | 4.61 | 31,542 |
| Influential Women in History | 0 | - | 4.43 | 36,527 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,384 |
| Cradles of Civilization | 0 | - | 4.46 | 40,507 |
| Popular Royal Names | 0 | - | 4.27 | 125,423 |
| Materials From History #1 | 0 | - | 4.56 | 52,095 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 710,359 |
| Notable People of WWII | 0 | - | 4.53 | 86,597 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,645 |
| World War I Quiz | 0 | - | 4.78 | 102,117 |
| WWI A-Z | 0 | - | 4.51 | 38,639 |
