| Territory Changes in World War I | 0 | - | 4.87 | 46,919 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,507 |
| WWII Geography | 0 | - | 4.81 | 120,570 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,779 |
| WWI... or WWII? | 0 | - | 4.85 | 142,638 |
| WWI A-Z | 0 | - | 4.51 | 38,438 |
| Military History Vocabulary | 0 | - | 4.91 | 67,302 |
| Notable People of WWII | 0 | - | 4.53 | 86,030 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,309 |
| WWII Trivia #1 | 0 | - | 4.36 | 178,009 |
| World War II Multiple Choice | 0 | - | 4.38 | 104,305 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,544 |
| WWII True or False? | 0 | - | 4.56 | 57,705 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,563 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,117 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,126 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,749 |
| WWII Decoder | 0 | - | 4.41 | 53,659 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,037 |
| Name the War | 0 | - | 4.37 | 202,354 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,574 |
| Names for Warriors | 0 | - | 4.40 | 36,983 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,393 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,553 |
| Countries with NO Military | 0 | - | 4.97 | 62,655 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,090 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,708 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,498 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,173 |
| Military History A-Z | 0 | - | 4.20 | 21,193 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,216 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,513 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,570 |
| People Who Died in Battle | 0 | - | 4.35 | 22,332 |
| Top Arms Importing Countries | 0 | - | 4.73 | 66,899 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,332 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,051 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,484 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,546 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,836 |
| WWII for Dummies | 0 | - | 4.78 | 105,189 |
| U.S. Military Acronyms | 0 | - | 4.39 | 101,215 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,505 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,312 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,546 |
| Historical Rulers #1 | 0 | - | 4.35 | 119,049 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,119 |
| Empires by Maps | 0 | - | 4.98 | 120,964 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,129 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 35,910 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,884 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,473 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,227 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,495 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,292 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,319,856 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,294 |
| Metals of Antiquity | 0 | - | 4.95 | 93,615 |
| Popular Royal Names | 0 | - | 4.27 | 125,081 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,872 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,514 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,602 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,585 |
| First Names of Painters | 0 | - | 4.43 | 59,919 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 45,194 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,406 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,405 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,672 |
| Geography of the British Empire | 0 | - | 4.48 | 39,735 |
| Weapons by Picture | 0 | - | 4.13 | 21,102 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,644 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,270 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,062 |
| Influential Women in History | 0 | - | 4.42 | 36,063 |
| Cradles of Civilization | 0 | - | 4.46 | 40,035 |
| History of The Netherlands | 0 | - | 4.46 | 17,484 |
| Materials From History #1 | 0 | - | 4.56 | 51,840 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,887 |
| UN Secretaries-General | 0 | - | 4.40 | 7,815 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,650 |
| Recently Independent Countries | 0 | - | 4.98 | 159,492 |
| 1960s Decade Quiz #1 | 0 | - | 4.40 | 50,389 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,205 |
| Famous Explorers | 0 | - | 4.58 | 36,250 |
| Famous Empires by Description | 0 | - | 4.73 | 118,670 |
| Answers by Time Period | 0 | - | 4.64 | 55,703 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,077 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,947 |
| 17th Century A-Z | 0 | - | 4.78 | 34,683 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,419 |
| French History Multiple Choice | 0 | - | 4.55 | 33,128 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,121 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,463 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,781 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,187 |
| Medieval English History | 0 | - | 4.53 | 43,572 |
| History of Germany | 0 | - | 4.39 | 52,898 |
| Most Important People in History | 0 | - | 3.98 | 50,807 |
| Fictional Military Characters Quiz | 0 | - | 4.27 | 19,638 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,978 |
| Countries with the Least Dense Road Networks | 0 | - | 4.81 | 41,686 |
| Monarchies of the World | 0 | - | 4.94 | 169,258 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,299 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 112,582 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 114,757 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 75,345 |
| Disney Animated Characters | 0 | - | 4.88 | 601,958 |
| People on Money by Country | 0 | - | 4.83 | 60,515 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,804 |
| Fast Math - Addition | 0 | - | 4.87 | 523,568 |
| NATO Countries | 0 | - | 4.98 | 281,602 |
| EU Countries Quiz | 0 | - | 4.99 | 275,610 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,265 |
| 7 Deadly Sins | 0 | - | 4.88 | 401,520 |
| Books of the Protestant Bible | 0 | - | 4.84 | 210,766 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,614 |
| Astronomy Quiz | 0 | - | 4.90 | 82,834 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 137,703 |
| Solar System Trivia | 0 | - | 4.93 | 46,819 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,922 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,559 |
| Countries with the Most Rail Travel | 0 | - | 4.85 | 37,496 |
| Countries with the Most Rail Travel per Capita | 0 | - | 4.93 | 33,453 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,029 |
| Countries with the Most JetPunk Users | 0 | - | 4.99 | 168,786 |
| Most Common JetPunk Answers - Countries | 0 | - | 4.91 | 87,935 |
| Countries By Wikipedia Word Clouds | 0 | - | 4.84 | 40,033 |
| Countries with the Most Major Earthquakes | 0 | - | 4.94 | 117,559 |
| Country Superlatives - Top 2 | 0 | - | 4.99 | 70,544 |
| Former Flags | 0 | - | 4.97 | 107,981 |
| Years in History by Picture | 0 | - | 4.44 | 35,609 |
| Russian History A-Z | 0 | - | 4.35 | 31,869 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,177 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,693 |
| Materials From History #2 | 0 | - | 4.59 | 31,553 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,198 |
| Former Capitals | 0 | - | 4.88 | 71,522 |
| Cold War Decoder | 0 | - | 4.83 | 52,446 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,570 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,443 |
| Events in History #2 | 0 | - | 4.49 | 71,816 |
| Events in History #3 | 0 | - | 4.41 | 71,773 |
| Events in History #4 | 0 | - | 4.44 | 44,375 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,480 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 49,079 |
| Assassinations in History | 0 | - | 4.21 | 66,295 |
| Famous Seconds | 0 | - | 4.22 | 46,622 |
| Ages and Eras | 0 | - | 4.39 | 67,812 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,520 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,854 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,240 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 76,062 |
| Female Historical Figures | 0 | - | 4.28 | 33,297 |
| Historical Blunders | 0 | - | 4.34 | 92,559 |
| Territorial Accessions | 0 | - | 4.34 | 34,840 |
| People Known as "The Great" | 0 | - | 4.46 | 24,723 |
| This Day in History - July | 0 | - | 4.49 | 36,473 |
| This Day in History - August | 0 | - | 4.42 | 43,378 |
| This Day in History - September | 0 | - | 4.55 | 57,488 |
| This Day in History - October | 0 | - | 4.49 | 37,645 |
| This Day in History - January | 0 | - | 4.47 | 46,742 |
| This Day in History - March | 0 | - | 4.45 | 43,693 |
| Ancient Civilizations | 0 | - | 4.64 | 38,017 |
| Battle to Country | 0 | - | 4.91 | 53,536 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,028 |
| The Places They Went #1 | 0 | - | 4.74 | 33,550 |
| Famous Inventors | 0 | - | 4.44 | 43,562 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,299 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,038 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,574 |
| European History for Dummies | 0 | - | 4.83 | 90,075 |
| History of Scotland | 0 | - | 4.51 | 21,127 |
| Kings of France Quiz | 0 | - | 4.20 | 32,818 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.08 | 1,014,792 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,416 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,431 |
| Countries with the Most Skyscrapers | 0 | - | 4.93 | 144,357 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,628 |
| Countries with the Tallest Buildings | 0 | - | 4.93 | 104,544 |
| Coldest Countries | 0 | - | 4.97 | 138,732 |
| Coldest World Capitals | 0 | - | 4.95 | 133,661 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,706 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 82,837 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,233 |
| World Currency Quiz | 0 | - | 4.92 | 304,263 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,963 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,998 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,506 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,662 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,743 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,995 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,530 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,920 |
| Richest Island Countries | 0 | - | 4.84 | 100,797 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 131,102 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,606 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,636 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,535 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,725 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,761 |
