| WWII A-Z #2 | 0 | - | 4.44 | 54,520 |
| WWII Geography | 0 | - | 4.81 | 119,966 |
| WWII Figures by Picture | 0 | - | 4.89 | 64,513 |
| WWII Decoder | 0 | - | 4.41 | 53,391 |
| WWII for Dummies | 0 | - | 4.80 | 104,500 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,186 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,431 |
| WWI... or WWII? | 0 | - | 4.85 | 141,568 |
| Military History Vocabulary | 0 | - | 4.91 | 66,917 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,307 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,547 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,665 |
| Countries in World War II | 0 | - | 4.54 | 909,159 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,216 |
| Name a Country A-Z | 0 | - | 5.00 | 242,022 |
| Name a Minecraft Mob A-Z | 0 | - | 4.87 | 42,236 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,768 |
| Countries in World War I | 0 | - | 4.88 | 227,569 |
| Important Cities in WWII | 0 | - | 4.42 | 93,244 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,040 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,928 |
| Name the War | 0 | - | 4.37 | 201,277 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,480 |
| Names for Warriors | 0 | - | 4.40 | 36,875 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,700 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,834 |
| Countries with NO Military | 0 | - | 4.97 | 61,730 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 89,893 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,660 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,091 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,088 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,890 |
| Countries that Start with A | 0 | - | 4.98 | 2,155,419 |
| Countries that Start with B | 0 | - | 4.95 | 2,287,536 |
| Countries that Start with C | 0 | - | 4.96 | 1,816,477 |
| Countries that Start with D | 0 | - | 4.96 | 705,754 |
| Countries that Start with E | 0 | - | 4.95 | 1,372,610 |
| Countries that Start with G | 0 | - | 4.97 | 1,498,130 |
| Countries that Start with H | 0 | - | 4.96 | 601,454 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,348 |
| Countries that Start with J | 0 | - | 4.98 | 599,417 |
| Countries that Start with K | 0 | - | 4.97 | 812,586 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,816 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,842 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,626 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,975 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,178 |
| Countries that Start with U | 0 | - | 4.97 | 902,337 |
| Countries that Start with V | 0 | - | 4.98 | 607,489 |
| Countries that Start with F | 0 | - | 4.83 | 615,061 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,714 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,075 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,589 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,741 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,467 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,025 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,502 |
| Notable People of WWII | 0 | - | 4.53 | 85,515 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,773 |
| World War I Quiz | 0 | - | 4.78 | 101,004 |
| WWI A-Z | 0 | - | 4.50 | 38,207 |
| Military History A-Z | 0 | - | 4.20 | 21,108 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,500 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,199 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,658 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,741 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,311 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,933 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,082 |
| Russian History A-Z | 0 | - | 4.38 | 31,464 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,853 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,105 |
| Name that Greek Letter | 0 | - | 4.93 | 322,742 |
| 17th Century A-Z | 0 | - | 4.78 | 34,247 |
| Name the English Monarchs | 0 | - | 4.92 | 500,525 |
| One Country By Letter By Continent | 0 | - | 5.00 | 122,887 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,993 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,305 |
| The Trojan War | 0 | - | 4.83 | 39,594 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,287 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,212 |
| WWII Trivia #1 | 0 | - | 4.36 | 177,255 |
| WWII First Names | 0 | - | 4.44 | 41,699 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,060 |
| World War II Multiple Choice | 0 | - | 4.38 | 103,552 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 29,916 |
| People Who Died in Battle | 0 | - | 4.35 | 22,297 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,328 |
| Roman Emperors | 0 | - | 4.95 | 119,417 |
| British History A-Z #1 | 0 | - | 4.45 | 46,329 |
| Top Arms Importing Countries | 0 | - | 4.70 | 65,298 |
| Countries Bordering "U" Countries | 0 | - | 4.82 | 24,317 |
| One Country By Letter By Continent on the Map | 0 | - | 4.99 | 46,515 |
| One Capital by Letter by Continent | 0 | - | 4.98 | 17,145 |
| Movie Characters A-Z | 0 | - | 4.19 | 61,107 |
| London A-Z | 0 | - | 4.10 | 40,715 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,534 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,221 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,284 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,803 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,032 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,644 |
| U.S. Military Acronyms | 0 | - | 4.39 | 100,997 |
| Countries that Start with R | 0 | - | 4.43 | 445,745 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,568 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,248 |
| Africa A-Z | 0 | - | 4.57 | 46,518 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,313 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,140 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,146 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,335 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,698 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,302 |
| Empires by Maps | 0 | - | 4.98 | 119,590 |
| Popular Royal Names | 0 | - | 4.27 | 124,761 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,845 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,299 |
| First Names of Painters | 0 | - | 4.43 | 59,758 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,501 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,272 |
| German History A-Z | 0 | - | 4.49 | 24,534 |
| Countries with U.S. Troops | 0 | - | 4.38 | 131,899 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,369 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,990 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,311,435 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,973 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,731 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,163 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,137 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,025 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,482 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,388 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,060 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,834 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,467 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,532 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,275 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,737 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,207 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,651 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,824 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,859 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,636 |
| World Cities A-Z by Clue #2 | 0 | - | 4.40 | 58,684 |
| Middle East A-Z | 0 | - | 4.47 | 45,935 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,472 |
| Canada A-Z | 0 | - | 4.73 | 32,738 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,261 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,708 |
| Turkey A-Z | 0 | - | 4.04 | 11,802 |
| Four Letter Geography A-Z #1 | 0 | - | 4.60 | 32,428 |
| Four Letter Geography A-Z #2 | 0 | - | 4.56 | 34,877 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,795 |
| Metals of Antiquity | 0 | - | 4.94 | 93,190 |
| History of The Netherlands | 0 | - | 4.46 | 17,375 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,487 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,893 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,768 |
| UN Secretaries-General | 0 | - | 4.40 | 7,781 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,581 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,030 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,316 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 29,838 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,650 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,813 |
| Roman Names for Places | 0 | - | 4.62 | 58,091 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,560 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,086 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,065 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,905 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,704 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,508 |
| French History A-Z | 0 | - | 4.22 | 24,454 |
| Most Important People in History | 0 | - | 3.98 | 50,568 |
| Fictional Military Characters Quiz | 0 | - | 4.27 | 19,592 |
| Weapons by Picture | 0 | - | 4.13 | 20,994 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,618 |
| Countries with the Least Dense Road Networks | 0 | - | 4.81 | 41,457 |
| Monarchies of the World | 0 | - | 4.94 | 167,578 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 112,173 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,396 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 113,916 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,896 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,540 |
| Disney Animated Characters | 0 | - | 4.88 | 600,524 |
| People on Money by Country | 0 | - | 4.83 | 60,199 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,258 |
| Fast Math - Addition | 0 | - | 4.87 | 521,608 |
| NATO Countries | 0 | - | 4.98 | 278,473 |
| EU Countries Quiz | 0 | - | 4.99 | 272,037 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,259 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,145 |
| Books of the Protestant Bible | 0 | - | 4.89 | 208,944 |
| The Bible A-Z | 0 | - | 4.29 | 59,622 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,284 |
| Astronomy Quiz | 0 | - | 4.90 | 82,201 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,567 |
| Solar System Trivia | 0 | - | 4.93 | 46,378 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,430 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,099 |
