| WWII Geography | 0 | - | 4.81 | 120,599 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,814 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,459 |
| Countries in World War I | 0 | - | 4.88 | 228,525 |
| Countries in World War II | 0 | - | 4.55 | 915,121 |
| WWII Decoder | 0 | - | 4.41 | 53,675 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,562 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,079 |
| WWII for Dummies | 0 | - | 4.78 | 105,219 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,907 |
| Important Cities in WWII | 0 | - | 4.42 | 93,635 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,141 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,763 |
| WWI... or WWII? | 0 | - | 4.85 | 142,688 |
| Military History Vocabulary | 0 | - | 4.91 | 67,324 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,118 |
| Name the English Monarchs | 0 | - | 4.91 | 504,196 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,215 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 30,089 |
| WWII First Names | 0 | - | 4.44 | 41,857 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,551 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,727 |
| Countries with NO Military | 0 | - | 4.97 | 62,698 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,531 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,743 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,517 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,934 |
| Battle to Country | 0 | - | 4.91 | 53,572 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,586 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,290 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,204 |
| Name that Greek Letter | 0 | - | 4.93 | 324,237 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,854 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,794 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,583 |
| The Trojan War | 0 | - | 4.83 | 39,812 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,306 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,582 |
| The American Civil War | 0 | - | 4.62 | 52,506 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,667 |
| Roman Emperors | 0 | - | 4.95 | 120,447 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,034 |
| British History A-Z #1 | 0 | - | 4.45 | 46,590 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,568 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,340 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,098 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,045 |
| Name the War | 0 | - | 4.37 | 202,417 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,581 |
| Names for Warriors | 0 | - | 4.40 | 36,988 |
| English Royal Consorts | 0 | - | 4.38 | 37,425 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,511 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,318 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,556 |
| Historical Rulers #1 | 0 | - | 4.35 | 119,060 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,166 |
| Empires by Maps | 0 | - | 4.98 | 121,025 |
| Popular Royal Names | 0 | - | 4.27 | 125,101 |
| Words for Leaders | 0 | - | 4.77 | 257,882 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,139 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 35,918 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,616 |
| First Names of Painters | 0 | - | 4.43 | 59,923 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,899 |
| Notable People of WWII | 0 | - | 4.53 | 86,044 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,324 |
| World War I Quiz | 0 | - | 4.78 | 101,466 |
| WWI A-Z | 0 | - | 4.51 | 38,449 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,173 |
| Communist Countries in History | 0 | - | 4.63 | 496,684 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,482 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,176 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,891 |
| German History A-Z | 0 | - | 4.49 | 24,668 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,240 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,501 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,306 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,074 |
| Metals of Antiquity | 0 | - | 4.95 | 93,638 |
| History of The Netherlands | 0 | - | 4.46 | 17,491 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,890 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,555 |
| UN Secretaries-General | 0 | - | 4.40 | 7,816 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,655 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,712 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,930 |
| WWII Trivia #1 | 0 | - | 4.36 | 178,052 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,798 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,001 |
| Roman Names for Places | 0 | - | 4.62 | 58,421 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,720 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,665 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,437 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,423 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,218 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,007 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,805 |
| British Royal Titles | 0 | - | 4.18 | 19,973 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,537 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,488 |
| French History A-Z | 0 | - | 4.27 | 24,782 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,186 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,040 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,824 |
| NATO Countries | 0 | - | 4.98 | 281,745 |
| EU Countries Quiz | 0 | - | 4.99 | 275,782 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,364 |
| 7 Deadly Sins | 0 | - | 4.88 | 401,686 |
| Books of the Protestant Bible | 0 | - | 4.84 | 210,857 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,797 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,191 |
| Influential Women in History | 0 | - | 4.42 | 36,122 |
| Cradles of Civilization | 0 | - | 4.46 | 40,084 |
| Former Flags | 0 | - | 4.97 | 108,015 |
| Russian History A-Z | 0 | - | 4.35 | 31,889 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,182 |
| Materials From History #1 | 0 | - | 4.56 | 51,866 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,223 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,934 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 49,163 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,600 |
| Former Capitals | 0 | - | 4.88 | 71,538 |
| World War II Multiple Choice | 0 | - | 4.38 | 104,317 |
| Cold War Decoder | 0 | - | 4.83 | 52,461 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,517 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,231 |
| Famous Explorers | 0 | - | 4.58 | 36,265 |
| Famous Empires by Description | 0 | - | 4.73 | 118,700 |
| Answers by Time Period | 0 | - | 4.64 | 55,721 |
| People Who Died in Battle | 0 | - | 4.35 | 22,332 |
| Political Quotes | 0 | - | 4.17 | 19,912 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,207 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,525 |
| Military History A-Z | 0 | - | 4.20 | 21,196 |
| The Life of King David | 0 | - | 4.37 | 14,128 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,062 |
| European History for Dummies | 0 | - | 4.83 | 90,096 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,838 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,775 |
| Animals in British History | 0 | - | 4.43 | 26,045 |
| Kings of France Quiz | 0 | - | 4.20 | 32,829 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,422 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,320 |
| Monarchies of Europe | 0 | - | 4.90 | 98,394 |
| Monarchies of Asia | 0 | - | 4.97 | 71,258 |
| Coldest World Capitals | 0 | - | 4.95 | 133,676 |
| World Currency Quiz | 0 | - | 4.92 | 304,459 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,048 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,059 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,558 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,689 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,770 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,024 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,547 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,931 |
| Richest Island Countries | 0 | - | 4.85 | 100,830 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,202 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,630 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,268 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,825 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,566 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,746 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,784 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,664 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,062 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,580 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,844 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,428 |
| Orthodox Countries | 0 | - | 4.92 | 132,320 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,715 |
| Buddhist Countries | 0 | - | 4.96 | 144,663 |
| The Sun Quiz | 0 | - | 4.93 | 34,816 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,099,433 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,033 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 87,626 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 48,997 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,201 |
| Countries that Start with A | 0 | - | 4.98 | 2,167,518 |
| Countries that Start with B | 0 | - | 4.95 | 2,298,838 |
| Countries that Start with C | 0 | - | 4.96 | 1,825,646 |
| Countries that Start with D | 0 | - | 4.96 | 712,211 |
| Countries that Start with E | 0 | - | 4.95 | 1,380,198 |
| Countries that Start with G | 0 | - | 4.97 | 1,506,429 |
| Countries that Start with H | 0 | - | 4.96 | 606,560 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,673 |
| Countries that Start with J | 0 | - | 4.98 | 604,146 |
| Countries that Start with K | 0 | - | 4.97 | 817,702 |
| Countries that Start with L | 0 | - | 4.98 | 1,093,001 |
| Countries that Start with N | 0 | - | 4.93 | 1,120,075 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,436 |
| Countries that Start with S | 0 | - | 4.98 | 1,758,070 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,586 |
| Countries that Start with U | 0 | - | 4.97 | 905,882 |
| Countries that Start with V | 0 | - | 4.98 | 610,324 |
| Countries that Start with F | 0 | - | 4.83 | 618,989 |
| Countries that Start with M | 0 | - | 4.97 | 1,384,239 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,745 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,995 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,167 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,625 |
