| Territory Changes in World War I | 0 | - | 4.87 | 39,691 |
| Normandy D-Day Beaches | 0 | - | 4.82 | 36,256 |
| WWII Figures by Picture | 0 | - | 4.87 | 39,303 |
| WWI... or WWII? | 0 | - | 4.84 | 121,279 |
| World War I Quiz | 0 | - | 4.77 | 91,601 |
| WWI A-Z | 0 | - | 4.47 | 35,037 |
| Military History Vocabulary | 0 | - | 4.92 | 59,446 |
| Notable People of WWII | 0 | - | 4.52 | 79,559 |
| WWII Trivia #2 | 0 | - | 4.50 | 85,449 |
| WWII Geography | 0 | - | 4.80 | 98,241 |
| WWII Trivia #1 | 0 | - | 4.36 | 160,312 |
| WWII A-Z #1 | 0 | - | 4.81 | 92,328 |
| World War II Multiple Choice | 0 | - | 4.37 | 94,129 |
| Name a Valid Answer - World War II | 0 | - | 4.51 | 46,961 |
| Invasions | 0 | - | 4.70 | 88,618 |
| WWII Movies | 0 | - | 4.18 | 25,558 |
| WWII A-Z #2 | 0 | - | 4.48 | 49,521 |
| WWII Decoder | 0 | - | 4.43 | 48,374 |
| Famous Battles Quiz | 0 | - | 4.24 | 46,484 |
| Name the War Quiz | 0 | - | 4.39 | 188,906 |
| Famous U.S. Generals | 0 | - | 4.24 | 36,862 |
| Names for Warriors | 0 | - | 4.39 | 34,417 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 223,685 |
| Countries with Nuclear Weapons | 0 | - | 4.88 | 215,441 |
| Countries with NO Military | 0 | - | 4.96 | 48,410 |
| Top Arms Exporting Countries | 0 | - | 4.95 | 75,633 |
| Countries with the Most Tanks | 0 | - | 4.89 | 74,527 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 13,367 |
| Military History A-Z | 0 | - | 4.19 | 19,363 |
| Most Powerful Countries Bordering Each Other | 0 | - | 4.82 | 48,282 |
| Time Magazine Person of the Year | 0 | - | 4.52 | 65,507 |
| "Second Best" History Edition | 0 | - | 4.94 | 45,083 |
| G7 Leaders Since 2003 | 0 | - | 4.46 | 38,104 |
| Famous Empires in History | 0 | - | 4.82 | 101,655 |
| People Who Died in Battle | 0 | - | 4.30 | 21,350 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,581 |
| Top Arms Importing Countries | 0 | - | 4.72 | 54,588 |
| World Leaders of the Cold War | 0 | - | 4.33 | 22,191 |
| Famous Dictators Quiz #1 | 0 | - | 4.75 | 182,034 |
| Art Works Picture Quiz #1 | 0 | - | 4.49 | 96,238 |
| Art Works Picture Quiz #2 | 0 | - | 4.45 | 85,746 |
| WWII for Dummies | 0 | - | 4.76 | 90,184 |
| Religions by Country of Origin Quiz | 0 | - | 4.28 | 72,209 |
| U.S. Military Acronyms | 0 | - | 4.38 | 86,151 |
| Historical Leaders by Date #1 | 0 | - | 4.49 | 28,062 |
| Historical Leaders by Date #2 | 0 | - | 4.53 | 26,952 |
| Historical Rulers #2 | 0 | - | 4.24 | 42,802 |
| Historical Rulers #1 | 0 | - | 4.33 | 110,726 |
| Former Countries by Territory Map | 0 | - | 4.96 | 84,568 |
| Empires by Maps | 0 | - | 4.98 | 92,259 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 101,132 |
| Hollywood Screen Legends Quiz | 0 | - | 4.02 | 33,479 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 45,610 |
| Countries with U.S. Troops | 0 | - | 4.39 | 124,751 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 47,815 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,096 |
| 100 Most Common English Words | 0 | - | 4.91 | 1,155,991 |
| Google What's the Difference? - History | 0 | - | 4.21 | 42,897 |
| Metals of Antiquity | 0 | - | 4.94 | 84,671 |
| Popular Royal Names | 0 | - | 4.25 | 115,376 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 39,263 |
| History: What Came First? #1 | 0 | - | 4.85 | 89,971 |
| Famous Dictators Quiz #2 | 0 | - | 4.34 | 79,381 |
| Mythical Creatures Quiz #1 | 0 | - | 4.91 | 650,901 |
| Art Works Picture Quiz #3 | 0 | - | 4.38 | 40,913 |
| 1960s Decade Quiz #2 | 0 | - | 4.44 | 41,118 |
| Years in History #1 - Multiple Choice | 0 | - | 4.83 | 62,315 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,456 |
| Countries the UK Declared War On | 0 | - | 4.57 | 110,776 |
| Weapons by Picture | 0 | - | 4.06 | 18,987 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 134,653 |
| Cradles of Civilization | 0 | - | 4.41 | 31,679 |
| History of The Netherlands | 0 | - | 4.42 | 15,619 |
| Materials From History #1 | 0 | - | 4.57 | 34,290 |
| UN Secretaries-General | 0 | - | 4.39 | 7,100 |
| First Names of Painters | 0 | - | 4.37 | 56,041 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,178 |
| 1960s Decade Quiz #1 | 0 | - | 4.38 | 46,904 |
| Biggest Nations and Empires Ever | 0 | - | 4.58 | 132,143 |
| Famous Explorers | 0 | - | 4.70 | 32,408 |
| Answers by Time Period | 0 | - | 4.49 | 42,285 |
| Territorial Accessions | 0 | - | 4.44 | 32,028 |
| Ancient Greek Trivia | 0 | - | 4.56 | 63,072 |
| Countries Italy Declared War On | 0 | - | 4.79 | 39,621 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 24,713 |
| Geography of the British Empire | 0 | - | 4.49 | 28,021 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.76 | 18,892 |
| Medieval English History | 0 | - | 4.52 | 40,522 |
| History of Germany Quiz | 0 | - | 4.35 | 39,941 |
| Most Important People in History | 0 | - | 3.98 | 46,027 |
| Fictional Military Characters Quiz | 0 | - | 4.23 | 18,844 |
| Countries with the Most Elite Universities | 0 | - | 4.93 | 98,032 |
| Monarchies of the World | 0 | - | 4.93 | 152,017 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 80,904 |
| Countries where the Sea Freezes | 0 | - | 4.91 | 80,527 |
| Largest Countries Without Deserts | 0 | - | 4.85 | 65,472 |
| Disney Animated Characters | 0 | - | 4.88 | 572,095 |
| All Disney Animated Movies | 0 | - | 4.84 | 381,531 |
| Countries by Number of Books Published | 0 | - | 4.95 | 62,765 |
| Fast Math - Addition | 0 | - | 4.82 | 474,457 |
| Fast Math - Double That Number! | 0 | - | 4.81 | 543,534 |
| NATO Countries Quiz | 0 | - | 4.98 | 222,873 |
| EU Countries Quiz | 0 | - | 4.99 | 225,636 |
| Top Five Countries by Religion | 0 | - | 4.90 | 139,299 |
| 7 Deadly Sins Quiz | 0 | - | 4.86 | 343,607 |
| Books of the Protestant Bible Quiz | 0 | - | 4.87 | 177,804 |
| Astronomy Quiz | 0 | - | 4.87 | 63,666 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 114,673 |
| Solar System Trivia | 0 | - | 4.94 | 37,855 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.90 | 57,158 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.87 | 90,427 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 104,819 |
| Countries with the Most JetPunk Users | 0 | - | 4.99 | 127,162 |
| Most Common JetPunk Answers - Countries | 0 | - | 4.88 | 74,269 |
| Countries with the Most Major Earthquakes | 0 | - | 4.94 | 108,705 |
| Country Superlatives - Top 2 | 0 | - | 4.99 | 66,228 |
| Influential Women in History | 0 | - | 4.46 | 30,287 |
| Former Flags | 0 | - | 4.98 | 80,492 |
| Ancient Greece A-Z | 0 | - | 4.63 | 20,492 |
| Historical Events - AD or BC? | 0 | - | 4.75 | 51,657 |
| Materials From History #2 | 0 | - | 4.56 | 23,919 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 26,026 |
| Words for Leaders | 0 | - | 4.81 | 213,694 |
| Warsaw Pact Countries | 0 | - | 4.85 | 79,736 |
| 20th Century Dates Quiz | 0 | - | 4.52 | 37,784 |
| Events in History #2 | 0 | - | 4.47 | 66,383 |
| Events in History #4 | 0 | - | 4.43 | 40,651 |
| Name a Valid Year in History | 0 | - | 4.92 | 51,598 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.17 | 46,304 |
| Assassinations in History Quiz | 0 | - | 4.15 | 62,884 |
| Famous Seconds Quiz | 0 | - | 4.21 | 44,490 |
| Ages and Eras Quiz | 0 | - | 4.33 | 64,244 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.21 | 38,262 |
| Titled People Quiz #1 | 0 | - | 4.13 | 43,773 |
| Titled People Quiz #3 | 0 | - | 4.32 | 41,206 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 73,342 |
| Historical Blunders | 0 | - | 4.32 | 85,696 |
| This Day in History - April | 0 | - | 4.42 | 43,190 |
| This Day in History - July | 0 | - | 4.48 | 34,924 |
| This Day in History - August | 0 | - | 4.41 | 41,600 |
| This Day in History - September | 0 | - | 4.54 | 54,573 |
| This Day in History - October | 0 | - | 4.49 | 36,163 |
| This Day in History - January | 0 | - | 4.53 | 44,161 |
| This Day in History - February | 0 | - | 4.41 | 38,233 |
| This Day in History - March | 0 | - | 4.45 | 41,740 |
| The 7 Wonders of the Ancient World | 0 | - | 4.79 | 65,480 |
| Ancient Civilizations | 0 | - | 4.55 | 34,394 |
| Geography of Ancient Greece | 0 | - | 4.76 | 29,572 |
| 19th Century A-Z | 0 | - | 4.82 | 33,973 |
| 17th Century A-Z | 0 | - | 4.62 | 23,895 |
| Battle to Country | 0 | - | 4.92 | 34,695 |
| The Reign of Napoleon | 0 | - | 4.53 | 35,886 |
| The Places They Went #1 | 0 | - | 4.76 | 32,274 |
| Famous Inventors | 0 | - | 4.44 | 42,327 |
| French History Multiple Choice | 0 | - | 4.54 | 29,531 |
| History of Scotland | 0 | - | 4.49 | 19,493 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.14 | 933,092 |
| Branches of the U.S. Military | 0 | - | 4.39 | 20,791 |
| Monarchies Bordering Monarchies | 0 | - | 4.86 | 55,370 |
| Countries with the Most Skyscrapers | 0 | - | 4.93 | 130,569 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 89,100 |
| Countries with the Tallest Buildings | 0 | - | 4.95 | 73,815 |
| Coldest Countries | 0 | - | 4.97 | 123,586 |
| Coldest World Capitals | 0 | - | 4.96 | 127,652 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 57,731 |
| Countries with the Least Precipitation | 0 | - | 4.89 | 67,577 |
| Capital Cities with the Least Precipitation | 0 | - | 4.91 | 27,284 |
| World Currency Quiz | 0 | - | 4.92 | 244,568 |
| Countries with the Most Billionaires | 0 | - | 4.94 | 278,305 |
| Countries with the Most Millionaires | 0 | - | 4.83 | 81,832 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 160,147 |
| Countries with the Most Exports | 0 | - | 4.96 | 121,663 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 40,346 |
| Top Crude Oil Producing Countries | 0 | - | 4.86 | 155,260 |
| Countries by Oil Consumption | 0 | - | 4.96 | 110,371 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 65,562 |
| Cities with the Biggest Economies | 0 | - | 4.92 | 117,336 |
| Largest Economies in 2050 | 0 | - | 4.90 | 98,101 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 236,598 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.94 | 71,345 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.86 | 59,978 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 220,331 |
| Majority Muslim Countries | 0 | - | 4.97 | 311,244 |
| Countries with the Most Muslims | 0 | - | 4.92 | 130,484 |
| Buddhist Countries | 0 | - | 4.96 | 129,964 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,001,259 |
| Country Logic Puzzle 4x4 – Sudoku style | 0 | - | 5.00 | 25,188 |
| Countries Hidden in a Letter #1 | 0 | - | 5.00 | 42,191 |
| Countries that Start with A | 0 | - | 4.98 | 1,923,230 |
| Countries that Start with B | 0 | - | 4.96 | 2,061,824 |
| Countries that Start with C | 0 | - | 4.96 | 1,629,580 |
| Countries that Start with D | 0 | - | 4.96 | 582,307 |
| Countries that Start with E | 0 | - | 4.95 | 1,218,491 |
| Countries that Start with G | 0 | - | 4.97 | 1,337,844 |
| Countries that Start with H | 0 | - | 4.95 | 496,505 |
| Countries that Start with I | 0 | - | 4.92 | 1,149,751 |
| Countries that Start with J | 0 | - | 4.98 | 500,224 |
| Countries that Start with K | 0 | - | 4.97 | 702,675 |
| Countries that Start with L | 0 | - | 4.98 | 960,688 |
| Countries that Start with N | 0 | - | 4.92 | 987,113 |
