| Territory Changes in World War I | 0 | - | 4.87 | 39,882 |
| Normandy D-Day Beaches | 0 | - | 4.82 | 36,381 |
| WWII Figures by Picture | 0 | - | 4.87 | 39,667 |
| WWI... or WWII? | 0 | - | 4.84 | 121,987 |
| World War I Quiz | 0 | - | 4.79 | 91,843 |
| WWI A-Z | 0 | - | 4.47 | 35,155 |
| Military History Vocabulary | 0 | - | 4.92 | 59,666 |
| Notable People of WWII | 0 | - | 4.52 | 79,727 |
| WWII Trivia #2 | 0 | - | 4.50 | 86,068 |
| WWII Geography | 0 | - | 4.80 | 98,586 |
| WWII Trivia #1 | 0 | - | 4.36 | 160,863 |
| WWII A-Z #1 | 0 | - | 4.81 | 92,673 |
| World War II Multiple Choice | 0 | - | 4.37 | 94,419 |
| Name a Valid Answer - World War II | 0 | - | 4.51 | 47,237 |
| Invasions | 0 | - | 4.70 | 88,864 |
| WWII Movies | 0 | - | 4.18 | 25,605 |
| WWII A-Z #2 | 0 | - | 4.48 | 49,673 |
| WWII Decoder | 0 | - | 4.43 | 48,520 |
| Famous Battles Quiz | 0 | - | 4.24 | 46,534 |
| Name the War Quiz | 0 | - | 4.39 | 189,298 |
| Famous U.S. Generals | 0 | - | 4.24 | 36,896 |
| Names for Warriors | 0 | - | 4.39 | 34,462 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,736 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 216,403 |
| Countries with NO Military | 0 | - | 4.96 | 48,868 |
| Top Arms Exporting Countries | 0 | - | 4.95 | 75,907 |
| Countries with the Most Tanks | 0 | - | 4.90 | 74,814 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 13,417 |
| Military History A-Z | 0 | - | 4.19 | 19,425 |
| Most Powerful Countries Bordering Each Other | 0 | - | 4.84 | 48,560 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 65,787 |
| "Second Best" History Edition | 0 | - | 4.94 | 45,560 |
| G7 Leaders Since 2003 | 0 | - | 4.46 | 38,233 |
| Famous Empires in History | 0 | - | 4.83 | 102,262 |
| People Who Died in Battle | 0 | - | 4.30 | 21,375 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,697 |
| Top Arms Importing Countries | 0 | - | 4.72 | 54,812 |
| World Leaders of the Cold War | 0 | - | 4.33 | 22,262 |
| Famous Dictators Quiz #1 | 0 | - | 4.75 | 182,523 |
| Art Works Picture Quiz #1 | 0 | - | 4.49 | 96,475 |
| Art Works Picture Quiz #2 | 0 | - | 4.45 | 86,063 |
| WWII for Dummies | 0 | - | 4.76 | 90,717 |
| Religions by Country of Origin Quiz | 0 | - | 4.28 | 72,345 |
| U.S. Military Acronyms | 0 | - | 4.38 | 86,286 |
| Historical Leaders by Date #1 | 0 | - | 4.50 | 28,133 |
| Historical Leaders by Date #2 | 0 | - | 4.54 | 27,021 |
| Historical Rulers #2 | 0 | - | 4.26 | 42,931 |
| Historical Rulers #1 | 0 | - | 4.33 | 110,966 |
| Former Countries by Territory Map | 0 | - | 4.96 | 84,984 |
| Empires by Maps | 0 | - | 4.98 | 93,044 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 101,358 |
| Hollywood Screen Legends Quiz | 0 | - | 4.02 | 33,503 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 45,945 |
| Countries with U.S. Troops | 0 | - | 4.39 | 125,058 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 47,921 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,216 |
| 100 Most Common English Words | 0 | - | 4.90 | 1,161,574 |
| Google What's the Difference? - History | 0 | - | 4.21 | 43,006 |
| Metals of Antiquity | 0 | - | 4.94 | 84,986 |
| Popular Royal Names | 0 | - | 4.25 | 115,621 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 39,442 |
| History: What Came First? #1 | 0 | - | 4.82 | 90,389 |
| Famous Dictators Quiz #2 | 0 | - | 4.34 | 79,547 |
| Mythical Creatures Quiz #1 | 0 | - | 4.91 | 652,734 |
| Art Works Picture Quiz #3 | 0 | - | 4.38 | 41,050 |
| 1960s Decade Quiz #2 | 0 | - | 4.44 | 41,280 |
| Years in History #1 - Multiple Choice | 0 | - | 4.83 | 62,527 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,548 |
| Countries the UK Declared War On | 0 | - | 4.58 | 111,694 |
| Geography of the British Empire | 0 | - | 4.50 | 36,708 |
| Weapons by Picture | 0 | - | 4.06 | 19,032 |
| Most Common English Verbs - Extreme | 0 | - | 4.95 | 135,336 |
| Cradles of Civilization | 0 | - | 4.42 | 31,926 |
| History of The Netherlands | 0 | - | 4.42 | 15,665 |
| Materials From History #1 | 0 | - | 4.54 | 41,218 |
| UN Secretaries-General | 0 | - | 4.39 | 7,108 |
| First Names of Painters | 0 | - | 4.37 | 56,159 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,891 |
| 1960s Decade Quiz #1 | 0 | - | 4.38 | 47,040 |
| Biggest Nations and Empires Ever | 0 | - | 4.57 | 132,875 |
| Famous Explorers | 0 | - | 4.71 | 32,518 |
| Answers by Time Period | 0 | - | 4.49 | 42,419 |
| Territorial Accessions | 0 | - | 4.44 | 32,108 |
| Ancient Greek Trivia | 0 | - | 4.56 | 63,192 |
| Countries Italy Declared War On | 0 | - | 4.79 | 39,743 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 24,733 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.76 | 18,932 |
| Medieval English History | 0 | - | 4.52 | 40,660 |
| History of Germany Quiz | 0 | - | 4.35 | 40,018 |
| Most Important People in History | 0 | - | 3.98 | 46,164 |
| Fictional Military Characters Quiz | 0 | - | 4.23 | 18,862 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 122,320 |
| Countries with the Least Dense Road Networks | 0 | - | 4.82 | 37,889 |
| Monarchies of the World | 0 | - | 4.93 | 152,298 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 81,198 |
| Countries where the Sea Freezes | 0 | - | 4.91 | 80,883 |
| Largest Countries Without Deserts | 0 | - | 4.86 | 65,764 |
| Disney Animated Characters | 0 | - | 4.89 | 573,116 |
| All Disney Animated Movies | 0 | - | 4.82 | 383,059 |
| Countries by Number of Books Published | 0 | - | 4.95 | 63,183 |
| Fast Math - Addition | 0 | - | 4.82 | 476,342 |
| Fast Math - Double That Number! | 0 | - | 4.81 | 545,309 |
| NATO Countries Quiz | 0 | - | 4.98 | 224,122 |
| EU Countries Quiz | 0 | - | 4.99 | 226,546 |
| Top Five Countries by Religion | 0 | - | 4.91 | 140,532 |
| 7 Deadly Sins Quiz | 0 | - | 4.86 | 344,530 |
| Books of the Protestant Bible Quiz | 0 | - | 4.87 | 178,915 |
| Astronomy Quiz | 0 | - | 4.87 | 63,924 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 115,439 |
| Solar System Trivia | 0 | - | 4.95 | 38,098 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.90 | 57,425 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.87 | 90,717 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 105,488 |
| Countries with the Most JetPunk Users | 0 | - | 4.99 | 127,654 |
| Most Common JetPunk Answers - Countries | 0 | - | 4.89 | 74,644 |
| Countries with the Most Major Earthquakes | 0 | - | 4.94 | 108,966 |
| Country Superlatives - Top 2 | 0 | - | 4.99 | 66,312 |
| Influential Women in History | 0 | - | 4.47 | 30,361 |
| Former Flags | 0 | - | 4.98 | 80,873 |
| Ancient Greece A-Z | 0 | - | 4.64 | 20,588 |
| Historical Events - AD or BC? | 0 | - | 4.75 | 51,817 |
| Materials From History #2 | 0 | - | 4.57 | 24,447 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,167 |
| Former Capitals Quiz | 0 | - | 4.81 | 57,862 |
| Warsaw Pact Countries | 0 | - | 4.85 | 79,917 |
| 20th Century Dates Quiz | 0 | - | 4.52 | 37,839 |
| Events in History #2 | 0 | - | 4.47 | 66,564 |
| Events in History #4 | 0 | - | 4.43 | 40,767 |
| Name a Valid Year in History | 0 | - | 4.92 | 52,235 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.18 | 46,388 |
| Assassinations in History Quiz | 0 | - | 4.17 | 62,975 |
| Famous Seconds Quiz | 0 | - | 4.21 | 44,518 |
| Ages and Eras Quiz | 0 | - | 4.35 | 64,326 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.21 | 38,285 |
| Titled People Quiz #1 | 0 | - | 4.14 | 43,811 |
| Titled People Quiz #3 | 0 | - | 4.33 | 41,255 |
| Job Titles Quiz #1 | 0 | - | 4.23 | 73,417 |
| Historical Blunders | 0 | - | 4.33 | 86,037 |
| This Day in History - April | 0 | - | 4.42 | 43,249 |
| This Day in History - July | 0 | - | 4.48 | 34,990 |
| This Day in History - August | 0 | - | 4.41 | 41,667 |
| This Day in History - September | 0 | - | 4.54 | 54,684 |
| This Day in History - October | 0 | - | 4.49 | 36,212 |
| This Day in History - January | 0 | - | 4.53 | 44,255 |
| This Day in History - February | 0 | - | 4.41 | 38,297 |
| This Day in History - March | 0 | - | 4.44 | 41,811 |
| The 7 Wonders of the Ancient World | 0 | - | 4.79 | 65,534 |
| Ancient Civilizations | 0 | - | 4.55 | 34,478 |
| Geography of Ancient Greece | 0 | - | 4.76 | 29,916 |
| 19th Century A-Z | 0 | - | 4.82 | 34,092 |
| 17th Century A-Z | 0 | - | 4.62 | 23,962 |
| Battle to Country | 0 | - | 4.92 | 34,971 |
| The Reign of Napoleon | 0 | - | 4.53 | 35,957 |
| The Places They Went #1 | 0 | - | 4.76 | 32,316 |
| Famous Inventors | 0 | - | 4.44 | 42,365 |
| French History Multiple Choice | 0 | - | 4.54 | 29,664 |
| History of Scotland | 0 | - | 4.49 | 19,558 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.14 | 936,709 |
| Monarchies Bordering Monarchies | 0 | - | 4.86 | 55,483 |
| Countries with the Most Skyscrapers | 0 | - | 4.93 | 131,302 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 89,353 |
| Countries with the Tallest Buildings | 0 | - | 4.95 | 74,096 |
| Coldest Countries | 0 | - | 4.97 | 124,001 |
| Coldest World Capitals | 0 | - | 4.96 | 127,783 |
| Five Coldest Countries by Continent | 0 | - | 4.96 | 57,923 |
| Countries with the Least Precipitation | 0 | - | 4.89 | 67,779 |
| Capital Cities with the Least Precipitation | 0 | - | 4.90 | 27,335 |
| World Currency Quiz | 0 | - | 4.92 | 245,731 |
| Countries with the Most Billionaires | 0 | - | 4.94 | 279,169 |
| Countries with the Most Millionaires | 0 | - | 4.84 | 82,424 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 161,188 |
| Countries with the Most Exports | 0 | - | 4.96 | 122,263 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 40,653 |
| Top Crude Oil Producing Countries | 0 | - | 4.87 | 155,696 |
| Countries by Oil Consumption | 0 | - | 4.96 | 110,617 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 65,806 |
| Cities with the Biggest Economies | 0 | - | 4.92 | 117,984 |
| Largest Economies in 2050 | 0 | - | 4.90 | 98,488 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 237,528 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 76,890 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.84 | 63,833 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 220,875 |
| Majority Muslim Countries | 0 | - | 4.97 | 311,987 |
| Countries with the Most Muslims | 0 | - | 4.92 | 130,897 |
| Buddhist Countries | 0 | - | 4.96 | 130,274 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,003,868 |
| Country Logic Puzzle 4x4 – Sudoku style | 0 | - | 5.00 | 25,273 |
| Countries Hidden in a Letter #1 | 0 | - | 5.00 | 42,372 |
| Countries that Start with A | 0 | - | 4.98 | 1,931,089 |
| Countries that Start with B | 0 | - | 4.95 | 2,069,769 |
| Countries that Start with C | 0 | - | 4.96 | 1,636,480 |
| Countries that Start with D | 0 | - | 4.96 | 586,527 |
| Countries that Start with E | 0 | - | 4.95 | 1,223,800 |
| Countries that Start with G | 0 | - | 4.97 | 1,343,240 |
| Countries that Start with H | 0 | - | 4.95 | 500,129 |
| Countries that Start with I | 0 | - | 4.92 | 1,154,542 |
| Countries that Start with J | 0 | - | 4.98 | 503,635 |
| Countries that Start with K | 0 | - | 4.97 | 706,559 |
| Countries that Start with L | 0 | - | 4.98 | 964,984 |
| Countries that Start with N | 0 | - | 4.93 | 991,513 |
