| WWII Geography | 0 | - | 4.81 | 120,634 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,843 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,495 |
| Countries in World War I | 0 | - | 4.88 | 228,569 |
| Countries in World War II | 0 | - | 4.55 | 915,359 |
| WWII Decoder | 0 | - | 4.41 | 53,685 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,578 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,092 |
| WWII for Dummies | 0 | - | 4.78 | 105,244 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,916 |
| Important Cities in WWII | 0 | - | 4.42 | 93,646 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,152 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,769 |
| WWI... or WWII? | 0 | - | 4.85 | 142,719 |
| Military History Vocabulary | 0 | - | 4.91 | 67,355 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,121 |
| Name the English Monarchs | 0 | - | 4.91 | 504,361 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,220 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 30,097 |
| WWII First Names | 0 | - | 4.44 | 41,863 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,645 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,847 |
| Countries with NO Military | 0 | - | 4.97 | 62,733 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,598 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,773 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,525 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,946 |
| Battle to Country | 0 | - | 4.91 | 53,596 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,606 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,325 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,478 |
| Name that Greek Letter | 0 | - | 4.93 | 324,291 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,860 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,807 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,606 |
| The Trojan War | 0 | - | 4.83 | 39,832 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,359 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,660 |
| The American Civil War | 0 | - | 4.62 | 52,512 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,815 |
| Roman Emperors | 0 | - | 4.95 | 120,491 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,042 |
| British History A-Z #1 | 0 | - | 4.45 | 46,604 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,609 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,350 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,136 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,050 |
| Name the War | 0 | - | 4.37 | 202,440 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,583 |
| Names for Warriors | 0 | - | 4.40 | 36,991 |
| English Royal Consorts | 0 | - | 4.38 | 37,433 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,529 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,337 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,570 |
| Historical Rulers #1 | 0 | - | 4.35 | 119,078 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,207 |
| Empires by Maps | 0 | - | 4.98 | 121,078 |
| Popular Royal Names | 0 | - | 4.27 | 125,115 |
| Words for Leaders | 0 | - | 4.77 | 258,008 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,155 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 35,930 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,636 |
| First Names of Painters | 0 | - | 4.43 | 59,930 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,915 |
| Notable People of WWII | 0 | - | 4.53 | 86,051 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,336 |
| World War I Quiz | 0 | - | 4.78 | 101,488 |
| WWI A-Z | 0 | - | 4.51 | 38,460 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,188 |
| Communist Countries in History | 0 | - | 4.63 | 496,788 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,485 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,178 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,895 |
| German History A-Z | 0 | - | 4.49 | 24,672 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,248 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,505 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,313 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,086 |
| Metals of Antiquity | 0 | - | 4.95 | 93,654 |
| History of The Netherlands | 0 | - | 4.46 | 17,497 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,898 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,572 |
| UN Secretaries-General | 0 | - | 4.40 | 7,819 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,657 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,810 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,966 |
| WWII Trivia #1 | 0 | - | 4.36 | 178,070 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 40,366 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,022 |
| Roman Names for Places | 0 | - | 4.62 | 58,457 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,736 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,672 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,449 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,435 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,226 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,014 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,808 |
| British Royal Titles | 0 | - | 4.18 | 19,977 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,539 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,491 |
| French History A-Z | 0 | - | 4.27 | 24,794 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,253 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,100 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,843 |
| NATO Countries | 0 | - | 4.98 | 281,852 |
| EU Countries Quiz | 0 | - | 4.99 | 275,913 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,426 |
| 7 Deadly Sins | 0 | - | 4.88 | 401,794 |
| Books of the Protestant Bible | 0 | - | 4.84 | 210,940 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,911 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,194 |
| Influential Women in History | 0 | - | 4.42 | 36,135 |
| Cradles of Civilization | 0 | - | 4.46 | 40,103 |
| Former Flags | 0 | - | 4.97 | 108,046 |
| Russian History A-Z | 0 | - | 4.35 | 31,904 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,183 |
| Materials From History #1 | 0 | - | 4.56 | 51,881 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,242 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,957 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 54,501 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,632 |
| Former Capitals | 0 | - | 4.88 | 71,547 |
| World War II Multiple Choice | 0 | - | 4.38 | 104,327 |
| Cold War Decoder | 0 | - | 4.83 | 52,468 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,541 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,265 |
| Famous Explorers | 0 | - | 4.58 | 36,269 |
| Famous Empires by Description | 0 | - | 4.73 | 118,720 |
| Answers by Time Period | 0 | - | 4.64 | 55,726 |
| People Who Died in Battle | 0 | - | 4.35 | 22,334 |
| Political Quotes | 0 | - | 4.17 | 19,917 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,212 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,528 |
| Military History A-Z | 0 | - | 4.20 | 21,199 |
| The Life of King David | 0 | - | 4.37 | 14,129 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,071 |
| European History for Dummies | 0 | - | 4.83 | 90,116 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,870 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,797 |
| Animals in British History | 0 | - | 4.43 | 26,048 |
| Kings of France Quiz | 0 | - | 4.20 | 32,835 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,425 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,348 |
| Monarchies of Europe | 0 | - | 4.90 | 98,422 |
| Monarchies of Asia | 0 | - | 4.97 | 71,275 |
| Coldest World Capitals | 0 | - | 4.95 | 133,686 |
| World Currency Quiz | 0 | - | 4.92 | 304,601 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,103 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,105 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,594 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,716 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,783 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,054 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,562 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,950 |
| Richest Island Countries | 0 | - | 4.85 | 100,858 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,327 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,653 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,278 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,957 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,601 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,755 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,817 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,707 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,091 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,613 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,876 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,444 |
| Orthodox Countries | 0 | - | 4.92 | 132,343 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,755 |
| Buddhist Countries | 0 | - | 4.96 | 144,684 |
| The Sun Quiz | 0 | - | 4.93 | 34,839 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,099,605 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,039 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 87,653 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,014 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,214 |
| Countries that Start with A | 0 | - | 4.98 | 2,168,072 |
| Countries that Start with B | 0 | - | 4.95 | 2,299,307 |
| Countries that Start with C | 0 | - | 4.96 | 1,826,019 |
| Countries that Start with D | 0 | - | 4.96 | 712,499 |
| Countries that Start with E | 0 | - | 4.95 | 1,380,499 |
| Countries that Start with G | 0 | - | 4.97 | 1,506,755 |
| Countries that Start with H | 0 | - | 4.96 | 606,748 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,942 |
| Countries that Start with J | 0 | - | 4.98 | 604,312 |
| Countries that Start with K | 0 | - | 4.97 | 817,889 |
| Countries that Start with L | 0 | - | 4.98 | 1,093,258 |
| Countries that Start with N | 0 | - | 4.93 | 1,120,312 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,667 |
| Countries that Start with S | 0 | - | 4.98 | 1,758,392 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,762 |
| Countries that Start with U | 0 | - | 4.97 | 906,026 |
| Countries that Start with V | 0 | - | 4.98 | 610,431 |
| Countries that Start with F | 0 | - | 4.83 | 619,157 |
| Countries that Start with M | 0 | - | 4.97 | 1,384,518 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,758 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,085 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,362 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,642 |
