| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,102 |
| NATO Countries | 0 | - | 4.98 | 275,431 |
| EU Countries Quiz | 0 | - | 4.99 | 269,683 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,560 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,695 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,213 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,045 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,187 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,454 |
| Words for Leaders | 0 | - | 4.77 | 255,015 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,620 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,247 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,791 |
| Political Quotes | 0 | - | 4.17 | 19,800 |
| Military History Vocabulary | 0 | - | 4.91 | 66,612 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,250 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,073 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,453 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 332,344 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,988 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,256 |
| The Sun Quiz | 0 | - | 4.93 | 34,069 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 136,417 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,354 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,406 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,670 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,199 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,711 |
| Popular Royal Names | 0 | - | 4.27 | 124,452 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,244 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,069 |
| First Names of Painters | 0 | - | 4.43 | 59,586 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,640 |
| UN Secretaries-General | 0 | - | 4.40 | 7,756 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,537 |
| Name the English Monarchs | 0 | - | 4.92 | 497,644 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,503 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,316 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,441 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,370 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,473 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,041 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,641 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,034 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,502 |
| Nicknames in World History | 0 | - | 4.73 | 37,315 |
| "Second Best" History Edition | 0 | - | 4.94 | 61,685 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,389 |
| WWII Geography | 0 | - | 4.81 | 119,299 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,466 |
| Quotes from Historical Figures #1 | 0 | - | 4.50 | 87,097 |
| OPEC Countries | 0 | - | 4.74 | 84,799 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,365 |
| Star Wars Quotes | 0 | - | 4.84 | 173,345 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,580 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,887 |
| Name a Country A-Z | 0 | - | 5.00 | 240,204 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,369 |
| Name a Valid Country A-Z | 0 | - | 4.97 | 119,988 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,426 |
| Empires by Maps | 0 | - | 4.98 | 118,299 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,113 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,273 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,172 |
| WWII First Names | 0 | - | 4.44 | 41,545 |
| Historical Middle Names | 0 | - | 4.16 | 35,362 |
| First Names of Historical Figures #2 | 0 | - | 4.32 | 40,215 |
| First Names of Historical Figures #1 | 0 | - | 4.39 | 228,553 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,063 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,134 |
| First Names of Explorers Quiz | 0 | - | 4.43 | 18,245 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,644 |
| Mythical Lands | 0 | - | 4.26 | 85,145 |
| Saint in the Answers | 0 | - | 4.10 | 44,145 |
| First Name + Initial Quiz | 0 | - | 4.03 | 52,718 |
| Historical Figures Known by a Single Name #1 | 0 | - | 4.31 | 84,465 |
| Quotes from Historical Figures #2 | 0 | - | 4.36 | 42,501 |
| Ben Franklin Quotes | 0 | - | 4.45 | 25,743 |
| Famous Speeches from History | 0 | - | 4.16 | 33,521 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,731 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,443 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 361,513 |
| Companies by Country | 0 | - | 4.56 | 118,647 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,976 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,599 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,926 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,963 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,313 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,312 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,143 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,794 |
| Groups of Things - The Bible | 0 | - | 4.43 | 54,773 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,847 |
| Astronomy Decoder | 0 | - | 4.50 | 37,828 |
| Word Chain - The Bible | 0 | - | 4.44 | 40,996 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 138,932 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 664,508 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.47 | 70,443 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 143,129 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,199 |
| Metals of Antiquity | 0 | - | 4.94 | 92,849 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,119 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,118 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,381 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,145 |
| Historical Middle Names - U.S. | 0 | - | 3.83 | 60,776 |
| Famous Mottos | 0 | - | 3.46 | 48,491 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,631 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,585,647 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,251 |
| Famous Lines of Poetry #2 | 0 | - | 4.55 | 18,417 |
| Character to Author #1 | 0 | - | 4.52 | 43,194 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 60,254 |
| U.S. Synonymous Trademarks | 0 | - | 4.06 | 66,742 |
| Influential Women in History | 0 | - | 4.42 | 34,918 |
| Cradles of Civilization | 0 | - | 4.46 | 38,979 |
| History of The Netherlands | 0 | - | 4.46 | 17,304 |
| Materials From History #1 | 0 | - | 4.56 | 50,538 |
| World Leaders by Picture | 0 | - | 4.36 | 263,277 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,999 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,659 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,511 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,093 |
| Famous Explorers | 0 | - | 4.58 | 35,925 |
| Famous Empires by Description | 0 | - | 4.70 | 117,490 |
| Answers by Time Period | 0 | - | 4.63 | 55,249 |
| Nicknames in U.S. History | 0 | - | 4.25 | 31,573 |
| Historical Misquotes | 0 | - | 4.39 | 26,619 |
| Books with Names in the Title #1 | 0 | - | 4.26 | 70,280 |
| First Names of Authors #1 | 0 | - | 4.20 | 58,999 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,610 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,155 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,019 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 115,979 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,161 |
| Literary Quotes #2 | 0 | - | 4.18 | 24,269 |
| Sci-Fi Movie Quotes | 0 | - | 4.31 | 36,839 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,942 |
| Books by Country Quiz | 0 | - | 4.30 | 32,172 |
| Stores in the Mall #1 | 0 | - | 3.89 | 45,819 |
| Colors by Letter | 0 | - | 4.25 | 162,006 |
| Sibling Actors | 0 | - | 4.12 | 47,440 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,384 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,972 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,183 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,461 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,605 |
| Countries with Four Letters | 0 | - | 4.99 | 418,297 |
| Random Symbol to Element | 0 | - | 4.88 | 92,154 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,139 |
| Random Country to Capital | 0 | - | 4.98 | 911,078 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,510 |
| Name a Valid World City | 0 | - | 4.83 | 70,060 |
| Category Elimination - Cities | 0 | - | 4.25 | 40,847 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,732 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,110 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,716 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,981 |
| Countries with NO Military | 0 | - | 4.97 | 61,124 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,662 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,874 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,924 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,021 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,243 |
| Former Flags | 0 | - | 4.97 | 106,593 |
| Years in History by Picture | 0 | - | 4.44 | 35,072 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,978 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,163 |
| Materials From History #2 | 0 | - | 4.59 | 30,897 |
| Dictators by Picture | 0 | - | 4.18 | 48,845 |
| WWII Decoder | 0 | - | 4.41 | 53,020 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,719 |
| WWII for Dummies | 0 | - | 4.80 | 103,768 |
| Cold War Decoder | 0 | - | 4.83 | 51,898 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,307 |
| Events in History #2 | 0 | - | 4.49 | 71,402 |
| Events in History #4 | 0 | - | 4.44 | 44,082 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,329 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,793 |
| Assassinations in History | 0 | - | 4.20 | 65,930 |
| Famous Seconds | 0 | - | 4.22 | 46,371 |
| Ages and Eras Quiz | 0 | - | 4.38 | 67,427 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,381 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,595 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,018 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,810 |
| Female Historical Figures | 0 | - | 4.31 | 33,082 |
| Historical Blunders | 0 | - | 4.33 | 91,650 |
| Territorial Accessions | 0 | - | 4.38 | 34,617 |
| People Known as "The Great" | 0 | - | 4.46 | 24,499 |
| This Day in History - July | 0 | - | 4.49 | 36,364 |
| This Day in History - August | 0 | - | 4.42 | 43,238 |
| This Day in History - September | 0 | - | 4.55 | 57,246 |
| This Day in History - October | 0 | - | 4.49 | 37,548 |
| This Day in History - January | 0 | - | 4.53 | 46,564 |
| This Day in History - March | 0 | - | 4.45 | 43,533 |
| Ancient Civilizations | 0 | - | 4.63 | 37,735 |
| The Places They Went #1 | 0 | - | 4.74 | 33,437 |
| Famous Inventors | 0 | - | 4.43 | 43,445 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,438 |
