| Territory Changes in World War I | 0 | - | 4.89 | 44,452 |
| Normandy D-Day Beaches | 0 | - | 4.82 | 39,107 |
| WWII Geography | 0 | - | 4.82 | 116,103 |
| WWII Figures by Picture | 0 | - | 4.83 | 47,393 |
| WWI... or WWII? | 0 | - | 4.84 | 135,254 |
| World War I Quiz | 0 | - | 4.78 | 97,809 |
| WWI A-Z | 0 | - | 4.49 | 37,270 |
| Military History Vocabulary | 0 | - | 4.91 | 64,745 |
| Notable People of WWII | 0 | - | 4.53 | 84,003 |
| WWII Trivia #2 | 0 | - | 4.51 | 100,641 |
| WWII Trivia #1 | 0 | - | 4.36 | 171,827 |
| World War II Multiple Choice | 0 | - | 4.38 | 101,195 |
| Name a Valid Answer - World War II | 0 | - | 4.52 | 52,961 |
| WWII True or False? | 0 | - | 4.56 | 55,196 |
| Invasions | 0 | - | 4.63 | 94,725 |
| Names for Warriors | 0 | - | 4.41 | 36,181 |
| WWII Movies | 0 | - | 4.21 | 26,614 |
| WWII A-Z #1 | 0 | - | 4.80 | 99,760 |
| WWII A-Z #2 | 0 | - | 4.44 | 53,031 |
| WWII Decoder | 0 | - | 4.41 | 51,767 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,222 |
| Name the War Quiz | 0 | - | 4.38 | 197,996 |
| Famous U.S. Generals | 0 | - | 4.26 | 38,018 |
| Countries with the Most Military Troops | 0 | - | 4.96 | 271,337 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 251,921 |
| Countries with NO Military | 0 | - | 4.97 | 57,496 |
| Top Arms Exporting Countries | 0 | - | 4.95 | 82,170 |
| Countries with the Most Tanks | 0 | - | 4.88 | 86,646 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 14,590 |
| Military History A-Z | 0 | - | 4.19 | 20,602 |
| Most Powerful Countries Bordering Each Other | 0 | - | 4.86 | 55,432 |
| Time Magazine Person of the Year | 0 | - | 4.55 | 71,279 |
| "Second Best" History Edition | 0 | - | 4.94 | 57,248 |
| G7 Leaders Since 2003 | 0 | - | 4.47 | 41,494 |
| People Who Died in Battle | 0 | - | 4.35 | 22,013 |
| Top Arms Importing Countries | 0 | - | 4.69 | 59,071 |
| World Leaders of the Cold War | 0 | - | 4.31 | 24,055 |
| Famous Dictators Quiz #1 | 0 | - | 4.69 | 193,981 |
| Art Works Picture Quiz #1 | 0 | - | 4.52 | 114,361 |
| Art Works Picture Quiz #2 | 0 | - | 4.48 | 95,275 |
| Art Works Picture Quiz #3 | 0 | - | 4.43 | 46,836 |
| WWII for Dummies | 0 | - | 4.78 | 100,037 |
| Religions by Country of Origin Quiz | 0 | - | 4.28 | 75,268 |
| U.S. Military Acronyms | 0 | - | 4.39 | 99,289 |
| Historical Leaders by Date #1 | 0 | - | 4.49 | 30,334 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 29,220 |
| Historical Rulers #2 | 0 | - | 4.26 | 46,002 |
| Historical Rulers #1 | 0 | - | 4.34 | 116,358 |
| Former Countries by Territory Map | 0 | - | 4.96 | 96,638 |
| Empires by Maps | 0 | - | 4.98 | 110,827 |
| World Leaders Quiz #1 | 0 | - | 4.13 | 106,740 |
| Hollywood Screen Legends Quiz | 0 | - | 4.04 | 34,439 |
| Ultimate 20th Century History Quiz | 0 | - | 4.84 | 51,315 |
| The 7 Wonders of the Ancient World | 0 | - | 4.81 | 67,561 |
| Countries with U.S. Troops | 0 | - | 4.38 | 130,004 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 50,296 |
| Major non-NATO U.S. Allies | 0 | - | 4.50 | 49,873 |
| 100 Most Common English Words | 0 | - | 4.89 | 1,262,023 |
| Google What's the Difference? - History | 0 | - | 4.20 | 45,245 |
| Metals of Antiquity | 0 | - | 4.93 | 90,579 |
| Popular Royal Names | 0 | - | 4.28 | 122,171 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 44,174 |
| History: What Came First? #1 | 0 | - | 4.86 | 100,377 |
| Famous Dictators Quiz #2 | 0 | - | 4.35 | 84,796 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 691,876 |
| 1960s Decade Quiz #2 | 0 | - | 4.44 | 43,426 |
| Years in History #1 - Multiple Choice | 0 | - | 4.83 | 67,799 |
| Wives of King Henry VIII | 0 | - | 4.55 | 52,615 |
| Countries the UK Declared War On | 0 | - | 4.61 | 118,810 |
| Geography of the British Empire | 0 | - | 4.51 | 38,738 |
| Weapons by Picture | 0 | - | 4.11 | 20,319 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 150,487 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.70 | 11,540 |
| Top 10 Oldest African Countries | 0 | - | 4.87 | 26,025 |
| Influential Women in History | 0 | - | 4.41 | 33,079 |
| Cradles of Civilization | 0 | - | 4.44 | 37,144 |
| History of The Netherlands | 0 | - | 4.45 | 16,767 |
| Materials From History #1 | 0 | - | 4.56 | 49,030 |
| Historical Countries by Ruler | 0 | - | 4.48 | 45,704 |
| UN Secretaries-General | 0 | - | 4.40 | 7,582 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.05 | 19,162 |
| First Names of Painters | 0 | - | 4.40 | 58,407 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 153,585 |
| 1960s Decade Quiz #1 | 0 | - | 4.38 | 48,800 |
| Biggest Nations and Empires Ever | 0 | - | 4.45 | 142,435 |
| Famous Explorers | 0 | - | 4.58 | 35,120 |
| Famous Empires in History | 0 | - | 4.78 | 115,096 |
| Answers by Time Period | 0 | - | 4.56 | 54,182 |
| Ancient Greek Trivia | 0 | - | 4.61 | 65,690 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,086 |
| French History Multiple Choice | 0 | - | 4.55 | 32,072 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.96 | 39,421 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 52,960 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,323 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.77 | 19,773 |
| Medieval English History | 0 | - | 4.53 | 42,598 |
| History of Germany | 0 | - | 4.38 | 51,755 |
| Most Important People in History | 0 | - | 3.99 | 49,212 |
| Fictional Military Characters Quiz | 0 | - | 4.26 | 19,338 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 140,383 |
| Monarchies of the World | 0 | - | 4.93 | 159,622 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 107,083 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 105,940 |
| Countries where the Sea Freezes | 0 | - | 4.92 | 98,732 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 72,148 |
| Disney Animated Characters | 0 | - | 4.88 | 591,135 |
| People on Money by Country | 0 | - | 4.83 | 58,342 |
| Countries by Number of Books Published | 0 | - | 4.95 | 69,490 |
| Fast Math - Addition | 0 | - | 4.85 | 508,710 |
| NATO Countries Quiz | 0 | - | 4.98 | 260,546 |
| EU Countries Quiz | 0 | - | 4.99 | 257,196 |
| Top Five Countries by Religion | 0 | - | 4.91 | 160,529 |
| 7 Deadly Sins Quiz | 0 | - | 4.86 | 379,579 |
| Books of the Protestant Bible | 0 | - | 4.87 | 198,062 |
| Majority Muslim Countries | 0 | - | 4.98 | 353,078 |
| Astronomy Quiz | 0 | - | 4.89 | 78,207 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 129,511 |
| Solar System Trivia | 0 | - | 4.93 | 43,409 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 62,928 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.87 | 98,510 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 122,256 |
| Countries with the Most JetPunk Users | 0 | - | 4.99 | 143,073 |
| Most Common JetPunk Answers - Countries | 0 | - | 4.90 | 83,266 |
| Countries By Wikipedia Word Clouds | 0 | - | 4.85 | 36,339 |
| Countries with the Most Major Earthquakes | 0 | - | 4.94 | 114,640 |
| Country Superlatives - Top 2 | 0 | - | 4.99 | 69,320 |
| Former Flags | 0 | - | 4.98 | 102,885 |
| Years in History by Picture | 0 | - | 4.43 | 33,353 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,343 |
| Historical Events - AD or BC? | 0 | - | 4.74 | 55,749 |
| Materials From History #2 | 0 | - | 4.59 | 30,381 |
| States of the German Confederation in 1848 | 0 | - | 4.86 | 29,879 |
| Former Capitals Quiz | 0 | - | 4.87 | 69,735 |
| Cold War Decoder | 0 | - | 4.82 | 50,236 |
| Warsaw Pact Countries | 0 | - | 4.82 | 82,912 |
| 20th Century Dates Quiz | 0 | - | 4.55 | 38,858 |
| Events in History #2 | 0 | - | 4.48 | 69,917 |
| Events in History #4 | 0 | - | 4.43 | 43,106 |
| Name a Valid Year in History | 0 | - | 4.92 | 62,649 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.20 | 48,159 |
| Assassinations in History Quiz | 0 | - | 4.18 | 65,079 |
| Famous Seconds Quiz | 0 | - | 4.21 | 45,950 |
| Ages and Eras Quiz | 0 | - | 4.38 | 66,546 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,085 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,066 |
| Titled People Quiz #3 | 0 | - | 4.33 | 42,518 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,186 |
| Female Historical Figures | 0 | - | 4.31 | 32,535 |
| Historical Blunders | 0 | - | 4.33 | 90,622 |
| Disasters in History | 0 | - | 4.42 | 25,095 |
| Territorial Accessions | 0 | - | 4.38 | 34,036 |
| People Known as "The Great" | 0 | - | 4.44 | 24,007 |
| This Day in History - July | 0 | - | 4.48 | 36,021 |
| This Day in History - August | 0 | - | 4.41 | 42,833 |
| This Day in History - September | 0 | - | 4.55 | 56,603 |
| This Day in History - October | 0 | - | 4.48 | 37,211 |
| This Day in History - January | 0 | - | 4.53 | 45,997 |
| This Day in History - March | 0 | - | 4.45 | 43,065 |
| Ancient Civilizations | 0 | - | 4.63 | 36,463 |
| Geography of Ancient Greece | 0 | - | 4.77 | 31,198 |
| 17th Century A-Z | 0 | - | 4.63 | 26,706 |
| Battle to Country | 0 | - | 4.91 | 49,697 |
| The Reign of Napoleon | 0 | - | 4.54 | 37,801 |
| The Places They Went #1 | 0 | - | 4.75 | 33,132 |
| Famous Inventors | 0 | - | 4.43 | 43,138 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.91 | 27,344 |
| European History for Dummies | 0 | - | 4.82 | 86,665 |
| History of Scotland | 0 | - | 4.51 | 20,587 |
| Kings of France Quiz | 0 | - | 4.20 | 31,869 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.11 | 994,423 |
| Branches of the U.S. Military | 0 | - | 4.39 | 23,250 |
| Countries with the Most Skyscrapers | 0 | - | 4.92 | 140,027 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.90 | 93,507 |
| Countries with the Tallest Buildings | 0 | - | 4.91 | 85,923 |
| Coldest Countries | 0 | - | 4.97 | 133,600 |
| Coldest World Capitals | 0 | - | 4.96 | 131,557 |
| Five Coldest Countries by Continent | 0 | - | 4.96 | 74,420 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 80,513 |
| Capital Cities with the Least Precipitation | 0 | - | 4.88 | 28,532 |
| World Currency Quiz | 0 | - | 4.91 | 272,480 |
| Countries with the Most Billionaires | 0 | - | 4.92 | 323,936 |
| Countries with the Most Millionaires | 0 | - | 4.87 | 114,517 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 188,698 |
| Countries with the Most Exports | 0 | - | 4.96 | 150,207 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 47,241 |
| Top Crude Oil Producing Countries | 0 | - | 4.90 | 183,810 |
| Countries by Oil Consumption | 0 | - | 4.96 | 117,529 |
| Top Oil Reserve Countries | 0 | - | 4.92 | 71,518 |
| Richest Island Countries | 0 | - | 4.82 | 96,059 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 126,125 |
| Largest Economies in 2050 | 0 | - | 4.90 | 108,004 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 252,827 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 99,431 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 80,884 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 233,206 |
| Countries with the Most Muslims | 0 | - | 4.94 | 155,186 |
| Buddhist Countries | 0 | - | 4.96 | 138,761 |
| The Sun Quiz | 0 | - | 4.93 | 32,217 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,066,476 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 34,138 |
