| WWII Geography | 0 | - | 4.81 | 121,467 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,451 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,367 |
| Countries in World War I | 0 | - | 4.88 | 229,380 |
| Countries in World War II | 0 | - | 4.54 | 919,978 |
| WWII Decoder | 0 | - | 4.41 | 53,899 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,938 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.78 | 78,380 |
| WWII for Dummies | 0 | - | 4.78 | 105,819 |
| World Leaders of the World Wars | 0 | - | 4.36 | 38,072 |
| Important Cities in WWII | 0 | - | 4.42 | 94,254 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,456 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,935 |
| WWI... or WWII? | 0 | - | 4.85 | 143,758 |
| Military History Vocabulary | 0 | - | 4.92 | 67,745 |
| WWII Movies by Plot | 0 | - | 4.22 | 27,182 |
| Name the English Monarchs | 0 | - | 4.91 | 507,175 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,353 |
| Countries by Percent WWII Deaths | 0 | - | 4.05 | 30,245 |
| WWII First Names | 0 | - | 4.45 | 42,003 |
| Countries with NO Military | 0 | - | 4.97 | 63,561 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,790 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,539 |
| All World Leaders 2026 | 0 | - | 4.95 | 21,111 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,434 |
| Normandy D-Day Beaches | 0 | - | 4.84 | 40,772 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,334 |
| Battle to Country | 0 | - | 4.91 | 54,077 |
| Countries That Were Invaded | 0 | - | 4.55 | 98,047 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,929 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,664 |
| Name that Greek Letter | 0 | - | 4.93 | 325,185 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,993 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,005 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,653 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,784 |
| The Trojan War | 0 | - | 4.83 | 40,035 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,119 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,787 |
| The American Civil War | 0 | - | 4.62 | 52,647 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,663 |
| Roman Emperors | 0 | - | 4.95 | 121,371 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,198 |
| British History A-Z #1 | 0 | - | 4.45 | 47,308 |
| "Second Best" History Edition | 0 | - | 4.94 | 64,358 |
| World Leaders of the Cold War | 0 | - | 4.26 | 25,475 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,730 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,169 |
| Name the War | 0 | - | 4.37 | 202,956 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,650 |
| Names for Warriors | 0 | - | 4.40 | 37,080 |
| English Royal Consorts | 0 | - | 4.38 | 37,548 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,464 |
| Historical Rulers #2 | 0 | - | 4.24 | 47,797 |
| Historical Rulers #1 | 0 | - | 4.34 | 119,581 |
| Former Countries by Territory Map | 0 | - | 4.96 | 104,155 |
| Empires by Maps | 0 | - | 4.98 | 122,458 |
| Popular Royal Names | 0 | - | 4.27 | 125,444 |
| Words for Leaders | 0 | - | 4.78 | 259,175 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,368 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 36,096 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,851 |
| First Names of Painters | 0 | - | 4.43 | 60,091 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,215 |
| Notable People of WWII | 0 | - | 4.53 | 86,623 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,683 |
| World War I Quiz | 0 | - | 4.78 | 102,148 |
| WWI A-Z | 0 | - | 4.51 | 38,654 |
| Countries Invaded by the USSR | 0 | - | 4.30 | 94,481 |
| Communist Countries in History | 0 | - | 4.63 | 498,623 |
| The 7 Wonders of the Ancient World | 0 | - | 4.86 | 82,658 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,260 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 36,017 |
| German History A-Z | 0 | - | 4.49 | 24,937 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,581 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,671 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,663 |
| Top 10 Oldest African Countries | 0 | - | 4.87 | 28,288 |
| Metals of Antiquity | 0 | - | 4.95 | 94,009 |
| History of The Netherlands | 0 | - | 4.46 | 17,570 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,201 |
| History: What Came First? #1 | 0 | - | 4.87 | 106,103 |
| UN Secretaries-General | 0 | - | 4.40 | 7,855 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,700 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 710,543 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,402 |
| WWII Trivia #1 | 0 | - | 4.36 | 178,680 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,360 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,254 |
| Roman Names for Places | 0 | - | 4.62 | 58,770 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,883 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,809 |
| Countries Italy Declared War On | 0 | - | 4.74 | 47,767 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,697 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,345 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,100 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,297 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,891 |
| British Royal Titles | 0 | - | 4.18 | 20,028 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,571 |
| British History A-Z #2 | 0 | - | 4.28 | 11,983 |
| The Reign of Queen Victoria | 0 | - | 4.34 | 23,568 |
| French History A-Z | 0 | - | 4.27 | 25,177 |
| Top Arms Exporting Countries | 0 | - | 4.97 | 105,819 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,961 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,169 |
| NATO Countries | 0 | - | 4.98 | 283,881 |
| EU Countries Quiz | 0 | - | 4.99 | 278,748 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,716 |
| 7 Deadly Sins | 0 | - | 4.88 | 404,641 |
| Books of the Protestant Bible | 0 | - | 4.84 | 212,219 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,246 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,248 |
| Influential Women in History | 0 | - | 4.43 | 36,549 |
| Cradles of Civilization | 0 | - | 4.46 | 40,529 |
| Former Flags | 0 | - | 4.97 | 108,768 |
| Russian History A-Z | 0 | - | 4.35 | 32,287 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,254 |
| Materials From History #1 | 0 | - | 4.56 | 52,112 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,502 |
| Historical Countries by Ruler | 0 | - | 4.48 | 49,328 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.16 | 64,134 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,096 |
| Former Capitals | 0 | - | 4.88 | 71,719 |
| World War II Multiple Choice | 0 | - | 4.39 | 114,170 |
| Cold War Decoder | 0 | - | 4.83 | 52,695 |
| Name a Valid Year in History | 0 | - | 4.93 | 68,061 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,738 |
| Famous Explorers | 0 | - | 4.58 | 36,401 |
| Famous Empires by Description | 0 | - | 4.74 | 119,047 |
| Answers by Time Period | 0 | - | 4.64 | 55,929 |
| Coups d'Etat - Name the Country | 0 | - | 4.43 | 42,252 |
| People Who Died in Battle | 0 | - | 4.35 | 22,383 |
| Political Quotes | 0 | - | 4.17 | 19,959 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,272 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,593 |
| Military History A-Z | 0 | - | 4.20 | 21,268 |
| The Life of King David | 0 | - | 4.37 | 14,149 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,320 |
| European History for Dummies | 0 | - | 4.83 | 90,462 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,136 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,129 |
| Animals in British History | 0 | - | 4.43 | 26,113 |
| Kings of France Quiz | 0 | - | 4.21 | 32,958 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,540 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,767 |
| Monarchies of Europe | 0 | - | 4.90 | 98,997 |
| Monarchies of Asia | 0 | - | 4.97 | 71,584 |
| Coldest World Capitals | 0 | - | 4.95 | 134,246 |
| World Currency Quiz | 0 | - | 4.92 | 307,388 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,239 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,908 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,301 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,340 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,253 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,628 |
| Countries by Oil Consumption | 0 | - | 4.96 | 124,445 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,226 |
| Richest Island Countries | 0 | - | 4.85 | 101,325 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,781 |
| Largest Economies in 2050 | 0 | - | 4.88 | 112,032 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,530 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,426 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,106 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,191 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,934 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,879 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,659 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,303 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,568 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,864 |
| Orthodox Countries | 0 | - | 4.92 | 132,920 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,323 |
| Buddhist Countries | 0 | - | 4.96 | 145,221 |
| The Sun Quiz | 0 | - | 4.93 | 35,173 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,103,315 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 36,261 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 88,069 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,454 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,582 |
| Countries that Start with A | 0 | - | 4.98 | 2,177,813 |
| Countries that Start with B | 0 | - | 4.95 | 2,308,434 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,004 |
| Countries that Start with D | 0 | - | 4.96 | 717,491 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,291 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,835 |
| Countries that Start with H | 0 | - | 4.96 | 610,315 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,527 |
| Countries that Start with J | 0 | - | 4.98 | 607,705 |
| Countries that Start with K | 0 | - | 4.97 | 821,533 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,806 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,856 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,022 |
| Countries that Start with S | 0 | - | 4.98 | 1,764,481 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,657 |
| Countries that Start with U | 0 | - | 4.97 | 909,048 |
| Countries that Start with V | 0 | - | 4.98 | 612,430 |
| Countries that Start with F | 0 | - | 4.83 | 621,855 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,317 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,096 |
