| Military History Vocabulary | 0 | - | 4.91 | 66,945 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,324 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,577 |
| WWII Geography | 0 | - | 4.81 | 120,005 |
| WWII Figures by Picture | 0 | - | 4.89 | 64,722 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,103 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,637 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,775 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,536 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,070 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,532 |
| WWI... or WWII? | 0 | - | 4.85 | 141,651 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,329 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 236,024 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,241 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,548 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,099 |
| Notable People of WWII | 0 | - | 4.53 | 85,535 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,793 |
| World War I Quiz | 0 | - | 4.78 | 101,065 |
| WWI A-Z | 0 | - | 4.50 | 38,222 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 121,059 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,939 |
| Name the War | 0 | - | 4.37 | 201,319 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,492 |
| Names for Warriors | 0 | - | 4.40 | 36,885 |
| 17th Century A-Z | 0 | - | 4.78 | 34,404 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,875 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,066 |
| Countries with NO Military | 0 | - | 4.97 | 61,774 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 90,130 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,744 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,760 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,534 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,210 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,673 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,293 |
| Africa A-Z | 0 | - | 4.57 | 46,535 |
| WWII Trivia #1 | 0 | - | 4.36 | 177,305 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,097 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,941 |
| Middle East A-Z | 0 | - | 4.47 | 45,942 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,269 |
| World War II Multiple Choice | 0 | - | 4.38 | 103,580 |
| Countries that Start with A | 0 | - | 4.98 | 2,156,148 |
| Countries that Start with B | 0 | - | 4.95 | 2,288,238 |
| Countries that Start with C | 0 | - | 4.96 | 1,817,048 |
| Countries that Start with D | 0 | - | 4.96 | 706,148 |
| Countries that Start with E | 0 | - | 4.95 | 1,373,079 |
| Countries that Start with G | 0 | - | 4.97 | 1,498,637 |
| Countries that Start with H | 0 | - | 4.96 | 601,791 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,764 |
| Countries that Start with J | 0 | - | 4.98 | 599,762 |
| Countries that Start with K | 0 | - | 4.97 | 812,901 |
| Countries that Start with L | 0 | - | 4.98 | 1,087,504 |
| Countries that Start with N | 0 | - | 4.93 | 1,114,197 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,967 |
| Countries that Start with S | 0 | - | 4.98 | 1,750,491 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,462 |
| Countries that Start with U | 0 | - | 4.97 | 902,557 |
| Countries that Start with V | 0 | - | 4.98 | 607,683 |
| Countries that Start with F | 0 | - | 4.83 | 615,338 |
| Countries that Start with M | 0 | - | 4.97 | 1,378,106 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,216 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,670 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,760 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,881 |
| World Cities A-Z by Clue #2 | 0 | - | 4.40 | 58,731 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,488 |
| Canada A-Z | 0 | - | 4.73 | 32,743 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,723 |
| Four Letter Geography A-Z #1 | 0 | - | 4.60 | 32,439 |
| Four Letter Geography A-Z #2 | 0 | - | 4.56 | 34,887 |
| The Bible A-Z | 0 | - | 4.29 | 59,642 |
| Capitals A-Z #2 | 0 | - | 4.45 | 26,726 |
| European Geography A-Z | 0 | - | 4.29 | 49,151 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,368 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,608 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,318 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,042 |
| WWII Decoder | 0 | - | 4.41 | 53,412 |
| People Who Died in Battle | 0 | - | 4.35 | 22,299 |
| Top Arms Importing Countries | 0 | - | 4.70 | 65,442 |
| One Country By Letter By Continent | 0 | - | 5.00 | 122,996 |
| One Capital by Letter by Continent | 0 | - | 4.98 | 17,161 |
| American Football A-Z | 0 | - | 4.26 | 14,498 |
| MLB Baseball A-Z #2 | 0 | - | 4.11 | 17,071 |
| France A-Z | 0 | - | 4.16 | 38,133 |
| Switzerland A-Z | 0 | - | 4.45 | 25,594 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,370 |
| Name a Country A-Z | 0 | - | 5.00 | 242,151 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,362 |
| Empires by Maps | 0 | - | 4.98 | 119,696 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,096 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,330 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,834 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,060 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,651 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,527 |
| WWII for Dummies | 0 | - | 4.79 | 104,551 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,282 |
| U.S. Military Acronyms | 0 | - | 4.39 | 101,017 |
| Countries Bordering "U" Countries | 0 | - | 4.82 | 24,331 |
| One Country By Letter By Continent on the Map | 0 | - | 4.99 | 46,574 |
| Human Body A-Z | 0 | - | 4.51 | 128,952 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,105 |
| African Geography A-Z | 0 | - | 4.33 | 21,454 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 57,441 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,323 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,151 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,343 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,716 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,869 |
| 20th Century A-Z | 0 | - | 4.50 | 53,447 |
| 19th Century A-Z | 0 | - | 4.77 | 47,029 |
| 18th Century A-Z | 0 | - | 4.54 | 42,904 |
| Countries with U.S. Troops | 0 | - | 4.38 | 131,925 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,383 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,012 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,311,966 |
| Countries that Start with R | 0 | - | 4.43 | 445,955 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,980 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,748 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,173 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,144 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,030 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,495 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,409 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,070 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,845 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,470 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,542 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,286 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,746 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,215 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,672 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,831 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,867 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,655 |
| South America A-Z | 0 | - | 4.13 | 10,881 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,167 |
| Metals of Antiquity | 0 | - | 4.94 | 93,209 |
| Popular Royal Names | 0 | - | 4.27 | 124,785 |
| Russian History A-Z | 0 | - | 4.38 | 31,490 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,516 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,323 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,163 |
| First Names of Painters | 0 | - | 4.43 | 59,771 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,109 |
| Weapons by Picture | 0 | - | 4.13 | 21,003 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,592 |
| Basketball A-Z | 0 | - | 3.87 | 22,677 |
| MLB Baseball A-Z #1 | 0 | - | 4.00 | 23,084 |
| Mountains A-Z | 0 | - | 3.78 | 10,924 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,204 |
| Influential Women in History | 0 | - | 4.42 | 35,413 |
| Cradles of Civilization | 0 | - | 4.46 | 39,481 |
| History of The Netherlands | 0 | - | 4.46 | 17,380 |
| Materials From History #1 | 0 | - | 4.56 | 51,407 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,776 |
| UN Secretaries-General | 0 | - | 4.40 | 7,781 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,586 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,630 |
| Famous Explorers | 0 | - | 4.58 | 36,094 |
| Famous Empires by Description | 0 | - | 4.73 | 118,253 |
| Answers by Time Period | 0 | - | 4.64 | 55,465 |
| 16th Century A-Z | 0 | - | 4.58 | 24,647 |
| 15th Century A-Z | 0 | - | 4.49 | 23,681 |
| 14th Century A-Z | 0 | - | 4.41 | 24,098 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,191 |
| Most Important People in History | 0 | - | 3.98 | 50,584 |
| Fictional Military Characters Quiz | 0 | - | 4.27 | 19,596 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,697 |
| Monarchies of the World | 0 | - | 4.94 | 167,667 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 112,214 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,432 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 113,954 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,922 |
| Disney Animated Characters | 0 | - | 4.88 | 600,634 |
| People on Money by Country | 0 | - | 4.83 | 60,214 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,293 |
| Fast Math - Addition | 0 | - | 4.87 | 521,726 |
| NATO Countries | 0 | - | 4.98 | 278,654 |
| EU Countries Quiz | 0 | - | 4.99 | 272,222 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,365 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,316 |
| Books of the Protestant Bible | 0 | - | 4.89 | 209,037 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,462 |
| Astronomy Quiz | 0 | - | 4.90 | 82,231 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,631 |
| Solar System Trivia | 0 | - | 4.93 | 46,402 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,462 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,126 |
| Best Selling Artists by Letter Quiz | 0 | - | 4.04 | 43,308 |
| Colors by Letter | 0 | - | 4.25 | 162,331 |
| Asian Geography By Letter - S | 0 | - | 4.16 | 56,008 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,472 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,891 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,148 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,766 |
