| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,096 |
| NATO Countries | 0 | - | 4.98 | 275,278 |
| EU Countries Quiz | 0 | - | 4.99 | 269,572 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,419 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,660 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,205 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,036 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,176 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,436 |
| Words for Leaders | 0 | - | 4.77 | 254,959 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,607 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,021 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,670 |
| Political Quotes | 0 | - | 4.17 | 19,799 |
| Military History Vocabulary | 0 | - | 4.91 | 66,601 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,215 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,058 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,441 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 332,172 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,980 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,232 |
| The Sun Quiz | 0 | - | 4.93 | 34,051 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 135,999 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,304 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,325 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,612 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,138 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,675 |
| Popular Royal Names | 0 | - | 4.27 | 124,441 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,098 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,055 |
| First Names of Painters | 0 | - | 4.43 | 59,580 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,636 |
| UN Secretaries-General | 0 | - | 4.40 | 7,756 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,533 |
| Name the English Monarchs | 0 | - | 4.92 | 497,524 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,492 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,300 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,389 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,293 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,425 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,963 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,593 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,004 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,469 |
| Nicknames in World History | 0 | - | 4.73 | 37,308 |
| "Second Best" History Edition | 0 | - | 4.94 | 61,648 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,233 |
| WWII Geography | 0 | - | 4.81 | 119,279 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,437 |
| Quotes from Historical Figures #1 | 0 | - | 4.50 | 87,092 |
| OPEC Countries | 0 | - | 4.74 | 84,789 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,362 |
| Star Wars Quotes | 0 | - | 4.84 | 173,304 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,541 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,845 |
| Name a Country A-Z | 0 | - | 5.00 | 240,112 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,334 |
| Name a Valid Country A-Z | 0 | - | 4.97 | 119,940 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,358 |
| Empires by Maps | 0 | - | 4.98 | 118,236 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,104 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,256 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,162 |
| WWII First Names | 0 | - | 4.44 | 41,540 |
| Historical Middle Names | 0 | - | 4.16 | 35,348 |
| First Names of Historical Figures #2 | 0 | - | 4.32 | 40,208 |
| First Names of Historical Figures #1 | 0 | - | 4.39 | 228,531 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,045 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,129 |
| First Names of Explorers Quiz | 0 | - | 4.43 | 18,243 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,639 |
| Mythical Lands | 0 | - | 4.26 | 85,142 |
| Saint in the Answers | 0 | - | 4.10 | 44,140 |
| First Name + Initial Quiz | 0 | - | 4.03 | 52,715 |
| Historical Figures Known by a Single Name #1 | 0 | - | 4.31 | 84,444 |
| Quotes from Historical Figures #2 | 0 | - | 4.36 | 42,498 |
| Ben Franklin Quotes | 0 | - | 4.45 | 25,743 |
| Famous Speeches from History | 0 | - | 4.16 | 33,516 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,722 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,436 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 361,463 |
| Companies by Country | 0 | - | 4.56 | 118,631 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,965 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,587 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,916 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,958 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,309 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,307 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,140 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,789 |
| Groups of Things - The Bible | 0 | - | 4.43 | 54,770 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,839 |
| Astronomy Decoder | 0 | - | 4.50 | 37,818 |
| Word Chain - The Bible | 0 | - | 4.44 | 40,987 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 138,925 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 664,355 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.47 | 70,434 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 143,093 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,179 |
| Metals of Antiquity | 0 | - | 4.94 | 92,825 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,106 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,087 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,362 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,059 |
| Historical Middle Names - U.S. | 0 | - | 3.83 | 60,767 |
| Famous Mottos | 0 | - | 3.46 | 48,490 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,617 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,584,700 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,230 |
| Famous Lines of Poetry #2 | 0 | - | 4.55 | 18,415 |
| Character to Author #1 | 0 | - | 4.52 | 43,187 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 60,236 |
| U.S. Synonymous Trademarks | 0 | - | 4.06 | 66,741 |
| Influential Women in History | 0 | - | 4.42 | 34,908 |
| Cradles of Civilization | 0 | - | 4.46 | 38,969 |
| History of The Netherlands | 0 | - | 4.46 | 17,299 |
| Materials From History #1 | 0 | - | 4.56 | 50,526 |
| World Leaders by Picture | 0 | - | 4.36 | 263,224 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,989 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,651 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,494 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,082 |
| Famous Explorers | 0 | - | 4.58 | 35,917 |
| Famous Empires by Description | 0 | - | 4.70 | 117,473 |
| Answers by Time Period | 0 | - | 4.63 | 55,233 |
| Nicknames in U.S. History | 0 | - | 4.25 | 31,570 |
| Historical Misquotes | 0 | - | 4.39 | 26,619 |
| Books with Names in the Title #1 | 0 | - | 4.26 | 70,271 |
| First Names of Authors #1 | 0 | - | 4.20 | 58,994 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,608 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,739 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,912 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 115,917 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,118 |
| Literary Quotes #2 | 0 | - | 4.18 | 24,265 |
| Sci-Fi Movie Quotes | 0 | - | 4.31 | 36,837 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,856 |
| Books by Country Quiz | 0 | - | 4.30 | 32,171 |
| Stores in the Mall #1 | 0 | - | 3.89 | 45,810 |
| Colors by Letter | 0 | - | 4.25 | 161,991 |
| Sibling Actors | 0 | - | 4.12 | 47,437 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,379 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,971 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,178 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,459 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,531 |
| Countries with Four Letters | 0 | - | 4.99 | 418,179 |
| Random Symbol to Element | 0 | - | 4.88 | 92,130 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,736 |
| Random Country to Capital | 0 | - | 4.98 | 910,802 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,492 |
| Name a Valid World City | 0 | - | 4.83 | 70,024 |
| Category Elimination - Cities | 0 | - | 4.25 | 40,838 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,678 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,070 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,615 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,833 |
| Countries with NO Military | 0 | - | 4.97 | 61,096 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,623 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,862 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,860 |
| Books of the Protestant Bible | 0 | - | 4.89 | 206,954 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,117 |
| Former Flags | 0 | - | 4.97 | 106,556 |
| Years in History by Picture | 0 | - | 4.44 | 35,063 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,973 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,155 |
| Materials From History #2 | 0 | - | 4.59 | 30,895 |
| Dictators by Picture | 0 | - | 4.18 | 48,840 |
| WWII Decoder | 0 | - | 4.41 | 53,010 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,707 |
| WWII for Dummies | 0 | - | 4.80 | 103,727 |
| Cold War Decoder | 0 | - | 4.83 | 51,890 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,301 |
| Events in History #2 | 0 | - | 4.49 | 71,389 |
| Events in History #4 | 0 | - | 4.44 | 44,074 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,293 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,789 |
| Assassinations in History | 0 | - | 4.20 | 65,924 |
| Famous Seconds | 0 | - | 4.22 | 46,370 |
| Ages and Eras Quiz | 0 | - | 4.38 | 67,420 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,378 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,587 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,009 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,805 |
| Female Historical Figures | 0 | - | 4.31 | 33,078 |
| Historical Blunders | 0 | - | 4.33 | 91,638 |
| Territorial Accessions | 0 | - | 4.38 | 34,614 |
| People Known as "The Great" | 0 | - | 4.46 | 24,493 |
| This Day in History - July | 0 | - | 4.49 | 36,360 |
| This Day in History - August | 0 | - | 4.42 | 43,234 |
| This Day in History - September | 0 | - | 4.55 | 57,242 |
| This Day in History - October | 0 | - | 4.49 | 37,545 |
| This Day in History - January | 0 | - | 4.53 | 46,557 |
| This Day in History - March | 0 | - | 4.45 | 43,529 |
| Ancient Civilizations | 0 | - | 4.63 | 37,730 |
| The Places They Went #1 | 0 | - | 4.74 | 33,435 |
| Famous Inventors | 0 | - | 4.43 | 43,443 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,428 |
