| WWII Geography | 0 | - | 4.81 | 120,717 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,956 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,636 |
| Countries in World War I | 0 | - | 4.88 | 228,683 |
| Countries in World War II | 0 | - | 4.54 | 916,265 |
| WWII Decoder | 0 | - | 4.41 | 53,709 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,626 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,148 |
| WWII for Dummies | 0 | - | 4.78 | 105,336 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,959 |
| Important Cities in WWII | 0 | - | 4.42 | 93,705 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,199 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,795 |
| WWI... or WWII? | 0 | - | 4.85 | 142,896 |
| Military History Vocabulary | 0 | - | 4.91 | 67,459 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,134 |
| Name the English Monarchs | 0 | - | 4.91 | 504,885 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,241 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 30,126 |
| WWII First Names | 0 | - | 4.44 | 41,893 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,023 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 275,351 |
| Countries with NO Military | 0 | - | 4.97 | 62,850 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,757 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,891 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,557 |
| Territory Changes in World War I | 0 | - | 4.87 | 47,004 |
| Battle to Country | 0 | - | 4.91 | 53,685 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,678 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,455 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,098 |
| Name that Greek Letter | 0 | - | 4.93 | 324,477 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,877 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,845 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,667 |
| The Trojan War | 0 | - | 4.83 | 39,899 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,528 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,893 |
| The American Civil War | 0 | - | 4.62 | 52,549 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,375 |
| Roman Emperors | 0 | - | 4.95 | 120,703 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,066 |
| British History A-Z #1 | 0 | - | 4.45 | 46,643 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,719 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,380 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,296 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,069 |
| Name the War | 0 | - | 4.37 | 202,536 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,602 |
| Names for Warriors | 0 | - | 4.40 | 37,013 |
| English Royal Consorts | 0 | - | 4.38 | 37,459 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,562 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,382 |
| Historical Rulers #2 | 0 | - | 4.27 | 47,630 |
| Historical Rulers #1 | 0 | - | 4.34 | 119,150 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,347 |
| Empires by Maps | 0 | - | 4.98 | 121,280 |
| Popular Royal Names | 0 | - | 4.27 | 125,185 |
| Words for Leaders | 0 | - | 4.77 | 258,341 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,220 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 35,982 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,701 |
| First Names of Painters | 0 | - | 4.43 | 59,964 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,963 |
| Notable People of WWII | 0 | - | 4.53 | 86,075 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,382 |
| World War I Quiz | 0 | - | 4.78 | 101,550 |
| WWI A-Z | 0 | - | 4.51 | 38,494 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,259 |
| Communist Countries in History | 0 | - | 4.63 | 497,139 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,511 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,198 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,914 |
| German History A-Z | 0 | - | 4.49 | 24,696 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,279 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,538 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,361 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,119 |
| Metals of Antiquity | 0 | - | 4.95 | 93,710 |
| History of The Netherlands | 0 | - | 4.46 | 17,510 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,951 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,656 |
| UN Secretaries-General | 0 | - | 4.40 | 7,832 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,670 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,199 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,069 |
| WWII Trivia #1 | 0 | - | 4.36 | 178,190 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 43,681 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,112 |
| Roman Names for Places | 0 | - | 4.62 | 58,557 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,765 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,690 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,518 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,483 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,245 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,028 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,817 |
| British Royal Titles | 0 | - | 4.18 | 19,984 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,547 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,501 |
| French History A-Z | 0 | - | 4.27 | 24,830 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,500 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,264 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,901 |
| NATO Countries | 0 | - | 4.98 | 282,226 |
| EU Countries Quiz | 0 | - | 4.99 | 276,388 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,661 |
| 7 Deadly Sins | 0 | - | 4.88 | 402,236 |
| Books of the Protestant Bible | 0 | - | 4.84 | 211,159 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,359 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,205 |
| Influential Women in History | 0 | - | 4.42 | 36,183 |
| Cradles of Civilization | 0 | - | 4.46 | 40,138 |
| Former Flags | 0 | - | 4.97 | 108,162 |
| Russian History A-Z | 0 | - | 4.35 | 31,943 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,200 |
| Materials From History #1 | 0 | - | 4.56 | 51,916 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,286 |
| Historical Countries by Ruler | 0 | - | 4.48 | 49,026 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.15 | 62,700 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,729 |
| Former Capitals | 0 | - | 4.88 | 71,580 |
| World War II Multiple Choice | 0 | - | 4.38 | 104,377 |
| Cold War Decoder | 0 | - | 4.83 | 52,495 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,626 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,333 |
| Famous Explorers | 0 | - | 4.58 | 36,280 |
| Famous Empires by Description | 0 | - | 4.73 | 118,793 |
| Answers by Time Period | 0 | - | 4.64 | 55,765 |
| People Who Died in Battle | 0 | - | 4.35 | 22,338 |
| Political Quotes | 0 | - | 4.17 | 19,927 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,224 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,543 |
| Military History A-Z | 0 | - | 4.20 | 21,214 |
| The Life of King David | 0 | - | 4.37 | 14,137 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,127 |
| European History for Dummies | 0 | - | 4.83 | 90,181 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,918 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,858 |
| Animals in British History | 0 | - | 4.43 | 26,058 |
| Kings of France Quiz | 0 | - | 4.20 | 32,860 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,441 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,432 |
| Monarchies of Europe | 0 | - | 4.90 | 98,515 |
| Monarchies of Asia | 0 | - | 4.97 | 71,337 |
| Coldest World Capitals | 0 | - | 4.95 | 134,019 |
| World Currency Quiz | 0 | - | 4.92 | 305,189 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,282 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,250 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,728 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,815 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,840 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,158 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,615 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,010 |
| Richest Island Countries | 0 | - | 4.85 | 100,938 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,418 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,710 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,339 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 273,463 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,684 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,832 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,491 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,160 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,202 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,745 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,024 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,524 |
| Orthodox Countries | 0 | - | 4.92 | 132,464 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,862 |
| Buddhist Countries | 0 | - | 4.96 | 144,783 |
| The Sun Quiz | 0 | - | 4.93 | 34,892 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,100,307 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,080 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 87,724 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,090 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,273 |
| Countries that Start with A | 0 | - | 4.98 | 2,169,973 |
| Countries that Start with B | 0 | - | 4.95 | 2,301,014 |
| Countries that Start with C | 0 | - | 4.96 | 1,827,368 |
| Countries that Start with D | 0 | - | 4.96 | 713,473 |
| Countries that Start with E | 0 | - | 4.95 | 1,381,627 |
| Countries that Start with G | 0 | - | 4.97 | 1,507,907 |
| Countries that Start with H | 0 | - | 4.96 | 607,462 |
| Countries that Start with I | 0 | - | 4.92 | 1,291,853 |
| Countries that Start with J | 0 | - | 4.98 | 604,957 |
| Countries that Start with K | 0 | - | 4.97 | 818,595 |
| Countries that Start with L | 0 | - | 4.98 | 1,094,132 |
| Countries that Start with N | 0 | - | 4.93 | 1,121,188 |
| Countries that Start with P | 0 | - | 4.94 | 1,219,522 |
| Countries that Start with S | 0 | - | 4.98 | 1,759,558 |
| Countries that Start with T | 0 | - | 4.90 | 1,012,837 |
| Countries that Start with U | 0 | - | 4.97 | 906,561 |
| Countries that Start with V | 0 | - | 4.98 | 610,807 |
| Countries that Start with F | 0 | - | 4.83 | 619,666 |
| Countries that Start with M | 0 | - | 4.97 | 1,385,442 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,790 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,290 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,738 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,674 |
