| Capitals A-Z #1 | 0 | - | 4.86 | 51,198 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,291 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,101 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,970 |
| Name a Country A-Z | 0 | - | 5.00 | 240,983 |
| Name a Minecraft Mob A-Z | 0 | - | 4.85 | 41,814 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,409 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 128,993 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,494 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,386 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,024 |
| Countries that Start with A | 0 | - | 4.98 | 2,149,862 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,503 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,464 |
| Countries that Start with D | 0 | - | 4.96 | 703,028 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,288 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,695 |
| Countries that Start with H | 0 | - | 4.96 | 599,144 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,722 |
| Countries that Start with J | 0 | - | 4.98 | 597,212 |
| Countries that Start with K | 0 | - | 4.97 | 810,507 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,269 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,183 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,869 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,451 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,237 |
| Countries that Start with U | 0 | - | 4.97 | 900,749 |
| Countries that Start with V | 0 | - | 4.98 | 605,848 |
| Countries that Start with F | 0 | - | 4.83 | 613,211 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,878 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,873 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,214 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,541 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,043 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,641 |
| Middle East A-Z | 0 | - | 4.47 | 45,855 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,289 |
| 1950s Decade Quiz | 0 | - | 4.41 | 48,956 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 44,546 |
| Military History Vocabulary | 0 | - | 4.91 | 66,733 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,101 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,491 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,476 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,327 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,594 |
| Four Letter Geography A-Z #1 | 0 | - | 4.60 | 32,066 |
| Four Letter Geography A-Z #2 | 0 | - | 4.56 | 34,506 |
| WWII Geography | 0 | - | 4.81 | 119,482 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,168 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,651 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,294 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,653 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,997 |
| The Bible A-Z | 0 | - | 4.29 | 59,431 |
| One Country By Letter By Continent | 0 | - | 5.00 | 122,125 |
| Capitals A-Z #2 | 0 | - | 4.45 | 26,664 |
| European Geography A-Z | 0 | - | 4.28 | 49,050 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,238 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,175 |
| 1960s Decade Quiz #1 | 0 | - | 4.40 | 49,755 |
| One Country By Letter By Continent on the Map | 0 | - | 4.99 | 45,992 |
| One Capital by Letter by Continent | 0 | - | 4.98 | 17,054 |
| France A-Z | 0 | - | 4.16 | 38,088 |
| Switzerland A-Z | 0 | - | 4.45 | 25,537 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,221 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,102 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,951 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,583 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,815 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,568 |
| WWI... or WWII? | 0 | - | 4.85 | 140,928 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,852 |
| Name the War | 0 | - | 4.37 | 200,961 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,434 |
| Names for Warriors | 0 | - | 4.40 | 36,824 |
| The 17th Century | 0 | - | 4.54 | 53,685 |
| 1940s Decade Quiz | 0 | - | 4.51 | 51,705 |
| 2010s Decade Quiz | 0 | - | 4.53 | 101,275 |
| Military History A-Z | 0 | - | 4.20 | 21,064 |
| Countries that Start with R | 0 | - | 4.43 | 444,378 |
| Countries Bordering "U" Countries | 0 | - | 4.83 | 24,170 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 66,766 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 58,141 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 34,770 |
| Africa A-Z | 0 | - | 4.57 | 46,416 |
| African Geography A-Z | 0 | - | 4.33 | 21,435 |
| London A-Z | 0 | - | 4.10 | 40,670 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,251 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,093 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,258 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,550 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,825 |
| Empires by Maps | 0 | - | 4.98 | 118,852 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,723 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,324 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,143 |
| Quiz on the Year 2001 | 0 | - | 4.48 | 24,175 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,030 |
| People Portrayed by Andy Warhol | 0 | - | 4.35 | 37,720 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,307,165 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,892 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,552 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,030 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,990 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,861 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,342 |
| European Geography By Letter - M | 0 | - | 4.61 | 129,112 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,945 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,715 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,090 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,455 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,212 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,629 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,126 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,434 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,689 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,772 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,195 |
| Turkey A-Z | 0 | - | 4.04 | 11,754 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,065 |
| Metals of Antiquity | 0 | - | 4.94 | 93,016 |
| Popular Royal Names | 0 | - | 4.27 | 124,586 |
| Russian History A-Z | 0 | - | 4.38 | 31,198 |
| History of The Netherlands | 0 | - | 4.46 | 17,339 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,268 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,348 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,175 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,940 |
| First Names of Painters | 0 | - | 4.43 | 59,655 |
| Notable People of WWII | 0 | - | 4.53 | 85,371 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,520 |
| World War I Quiz | 0 | - | 4.78 | 100,372 |
| WWI A-Z | 0 | - | 4.50 | 38,061 |
| U.S. History A-Z #1 | 0 | - | 4.35 | 29,597 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.28 | 44,815 |
| NBA Basketball by Year, 2000–Present | 0 | - | 4.33 | 60,346 |
| 1970s Decade Quiz | 0 | - | 4.20 | 52,399 |
| 2000s Decade Quiz | 0 | - | 4.23 | 120,206 |
| 1980s Decade Quiz | 0 | - | 4.38 | 76,452 |
| 1910s Decade Quiz | 0 | - | 4.19 | 52,386 |
| 1930s Decade Quiz | 0 | - | 4.28 | 48,792 |
| 1920s Decade Quiz | 0 | - | 4.33 | 49,454 |
| 1990s Decade Quiz | 0 | - | 4.01 | 54,668 |
| 1850s Decade Quiz | 0 | - | 4.42 | 34,999 |
| 1790s Decade Quiz | 0 | - | 4.55 | 33,449 |
| 1800s Decade Quiz | 0 | - | 4.47 | 31,729 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,743 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,039 |
| Best Selling Artists by Letter Quiz | 0 | - | 4.04 | 43,234 |
| Colors by Letter | 0 | - | 4.25 | 162,131 |
| Asian Geography By Letter - S | 0 | - | 4.18 | 55,948 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,334 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,765 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,006 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,563 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,589 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,263 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,007 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,355 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,750 |
| Asian Geography by Letter - G | 0 | - | 4.35 | 51,039 |
| Asian Geography by Letter - I | 0 | - | 4.36 | 67,564 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,552 |
| Asian Geography by Letter - N | 0 | - | 4.33 | 50,056 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,575 |
| Asian Geography By Letter - J | 0 | - | 4.25 | 34,545 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,515 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,875 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,375 |
| California Cities A-Z | 0 | - | 4.06 | 17,048 |
| Birds A-Z | 0 | - | 4.24 | 36,393 |
| Canada A-Z | 0 | - | 4.73 | 32,685 |
| Texas A-Z | 0 | - | 4.18 | 16,321 |
| Pennsylvania A-Z | 0 | - | 4.11 | 7,522 |
| Hawaii A-Z | 0 | - | 4.28 | 13,417 |
| Ohio A-Z | 0 | - | 4.21 | 6,357 |
| Influential Women in History | 0 | - | 4.42 | 35,200 |
| Cradles of Civilization | 0 | - | 4.46 | 39,261 |
| Former Flags | 0 | - | 4.97 | 106,898 |
| Materials From History #1 | 0 | - | 4.56 | 51,213 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,687 |
| UN Secretaries-General | 0 | - | 4.40 | 7,771 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,558 |
| WWII Trivia #1 | 0 | - | 4.36 | 176,796 |
| WWII Decoder | 0 | - | 4.41 | 53,103 |
| World War II Multiple Choice | 0 | - | 4.38 | 103,384 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,842 |
| WWII for Dummies | 0 | - | 4.80 | 104,020 |
| Cold War Decoder | 0 | - | 4.83 | 52,012 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,567 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,355 |
| Famous Explorers | 0 | - | 4.58 | 36,009 |
| Famous Empires by Description | 0 | - | 4.73 | 118,030 |
| Answers by Time Period | 0 | - | 4.63 | 55,339 |
| People Who Died in Battle | 0 | - | 4.35 | 22,279 |
| Quiz on the Year 1997 | 0 | - | 4.39 | 20,919 |
| Quiz on the Year 1998 | 0 | - | 4.33 | 17,217 |
| Quiz on the Year 2000 | 0 | - | 4.08 | 21,108 |
| 1900s Decade Quiz | 0 | - | 4.18 | 44,037 |
| 1860s Decade Quiz | 0 | - | 4.31 | 40,209 |
