| Metals of Antiquity | 0 | - | 4.94 | 92,976 |
| The Only Country ... | 0 | - | 4.91 | 80,023 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,146 |
| Nicknames in World History | 0 | - | 4.74 | 37,409 |
| "Second Best" History Edition | 0 | - | 4.93 | 62,006 |
| Quotes from Historical Figures #1 | 0 | - | 4.50 | 87,149 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,334 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,928 |
| Historical Middle Names | 0 | - | 4.16 | 35,419 |
| First Names of Historical Figures #2 | 0 | - | 4.32 | 40,269 |
| First Names of Historical Figures #1 | 0 | - | 4.39 | 228,677 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,735 |
| Empires by Maps | 0 | - | 4.98 | 118,717 |
| First Names of Explorers Quiz | 0 | - | 4.43 | 18,269 |
| Mythical Lands | 0 | - | 4.26 | 85,186 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,299 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,322 |
| Saint in the Answers | 0 | - | 4.10 | 44,179 |
| First Name + Initial Quiz | 0 | - | 4.03 | 52,746 |
| Historical Figures Known by a Single Name #1 | 0 | - | 4.31 | 84,585 |
| Quotes from Historical Figures #2 | 0 | - | 4.36 | 42,536 |
| Ben Franklin Quotes | 0 | - | 4.45 | 25,749 |
| Famous Speeches from History | 0 | - | 4.16 | 33,534 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,132 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,110 |
| Cities that End in A by Clue | 0 | - | 4.55 | 52,796 |
| Cities that End in O by Clue | 0 | - | 4.56 | 61,003 |
| Cities that End in N by Clue | 0 | - | 4.55 | 53,942 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,088 |
| Cities that End in S by Clue | 0 | - | 4.57 | 44,805 |
| Popular Royal Names | 0 | - | 4.27 | 124,531 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,236 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,281 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,705 |
| First Names of Painters | 0 | - | 4.43 | 59,623 |
| Historical Middle Names - U.S. | 0 | - | 3.83 | 60,846 |
| Famous Mottos | 0 | - | 3.46 | 48,506 |
| The Diseases They Had | 0 | - | 4.15 | 13,904 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,705 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,591,639 |
| Random Cities by Clue | 0 | - | 4.53 | 42,608 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,497 |
| Influential Women in History | 0 | - | 4.42 | 35,159 |
| Cradles of Civilization | 0 | - | 4.46 | 39,218 |
| Materials From History #1 | 0 | - | 4.56 | 51,055 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,221 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,312 |
| Famous Explorers | 0 | - | 4.58 | 35,993 |
| Famous Empires by Description | 0 | - | 4.73 | 117,994 |
| Answers by Time Period | 0 | - | 4.63 | 55,310 |
| Nicknames in U.S. History | 0 | - | 4.25 | 31,592 |
| Historical Misquotes | 0 | - | 4.39 | 26,627 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,733 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 54,905 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.80 | 49,431 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,645 |
| Random Symbol to Element | 0 | - | 4.88 | 92,320 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,557 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,089,465 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,457 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,348 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,376 |
| 7 Deadly Sins | 0 | - | 4.88 | 395,603 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,097 |
| Cities that End in R by Clue | 0 | - | 4.68 | 18,648 |
| Cities that End in M by Clue | 0 | - | 4.62 | 20,921 |
| U.S. Cities by Clue #1 | 0 | - | 4.27 | 47,977 |
| World Cities by Clue #1 | 0 | - | 4.30 | 73,969 |
| World Cities by Clue Quiz #3 | 0 | - | 4.30 | 48,464 |
| World Cities by Clue Quiz #4 | 0 | - | 4.41 | 23,904 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,252 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,615 |
| World Capitals by a Single Clue #2 | 0 | - | 4.46 | 53,337 |
| World Capitals by a Single Clue #4 | 0 | - | 4.41 | 38,221 |
| World Capitals by a Single Clue #1 | 0 | - | 4.51 | 55,441 |
| NFL Team Names by Clue | 0 | - | 4.19 | 127,338 |
| NBA Team Names by Clue | 0 | - | 4.27 | 169,642 |
| NHL Hockey Team Names by Clue | 0 | - | 4.35 | 86,354 |
| Countries with Four Letters | 0 | - | 4.99 | 418,945 |
| Random Capital to Country | 0 | - | 4.99 | 2,579,540 |
| Random Country to Capital | 0 | - | 4.98 | 912,483 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,578 |
| Name a Valid World City | 0 | - | 4.83 | 70,252 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 68,031 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,364 |
| U.S. Celebrity Gossip by Year, 1991–2009 | 0 | - | 3.75 | 38,137 |
| Former Flags | 0 | - | 4.97 | 106,833 |
| Years in History by Picture | 0 | - | 4.44 | 35,153 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,230 |
| Materials From History #2 | 0 | - | 4.59 | 31,229 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,588 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,021 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,874 |
| WWII First Names | 0 | - | 4.44 | 41,591 |
| Cold War Decoder | 0 | - | 4.83 | 51,981 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,330 |
| Events in History #2 | 0 | - | 4.49 | 71,461 |
| Events in History #4 | 0 | - | 4.44 | 44,132 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,495 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,842 |
| Assassinations in History | 0 | - | 4.21 | 66,000 |
| Famous Seconds | 0 | - | 4.22 | 46,408 |
| Ages and Eras | 0 | - | 4.38 | 67,500 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,416 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,655 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,065 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,847 |
| Female Historical Figures | 0 | - | 4.27 | 33,124 |
| Historical Blunders | 0 | - | 4.33 | 91,736 |
| Territorial Accessions | 0 | - | 4.38 | 34,666 |
| People Known as "The Great" | 0 | - | 4.46 | 24,552 |
| Political Quotes | 0 | - | 4.17 | 19,814 |
| This Day in History - July | 0 | - | 4.49 | 36,377 |
| This Day in History - August | 0 | - | 4.42 | 43,263 |
| This Day in History - September | 0 | - | 4.55 | 57,281 |
| This Day in History - October | 0 | - | 4.49 | 37,557 |
| This Day in History - January | 0 | - | 4.53 | 46,588 |
| This Day in History - March | 0 | - | 4.45 | 43,551 |
| Ancient Civilizations | 0 | - | 4.63 | 37,784 |
| Military History Vocabulary | 0 | - | 4.91 | 66,704 |
| The Places They Went #1 | 0 | - | 4.74 | 33,454 |
| Famous Inventors | 0 | - | 4.43 | 43,466 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,526 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,301 |
| European History for Dummies | 0 | - | 4.83 | 89,386 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,011,274 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,091,510 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,686 |
| The Sun Quiz | 0 | - | 4.93 | 34,175 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,283 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,693 |
| Countries with Glaciers | 0 | - | 4.97 | 104,708 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 712,492 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,152 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,509 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,818 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,699 |
| Islands by Country #1 | 0 | - | 4.87 | 174,572 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,988 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,328 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,376 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,646 |
| Crayola Crayon Colors 64 Pack | 0 | - | 4.99 | 62,102 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 333,477 |
| Countries by Emojis | 0 | - | 4.99 | 236,907 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,027 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,552 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,511 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,465 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,581 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,477 |
| U.S. Cities by Clue #2 | 0 | - | 4.08 | 31,609 |
| U.S. Cities by Clue #3 | 0 | - | 4.12 | 28,281 |
| Cities that End in L by Clue | 0 | - | 4.24 | 20,759 |
| Smaller Cities That You May Know | 0 | - | 4.35 | 28,345 |
| World Capitals by a Single Clue #3 | 0 | - | 4.35 | 45,768 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,372 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,187 |
| Country Chain | 0 | - | 4.96 | 215,879 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,420 |
| Random Countries by Borders | 0 | - | 4.99 | 81,739 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,097 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,394 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,389 |
| Random Point on Land to Country | 0 | - | 4.99 | 232,155 |
| Random Countries on a Topological Map | 0 | - | 4.90 | 51,309 |
| Find The Mystery Country Using Color Clues - Randomized! | 0 | - | 4.98 | 2,147,664 |
| Capital Cities Chain | 0 | - | 4.84 | 81,982 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,393 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,907 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,595 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,074 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,366 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,820 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,045 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,547 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,924 |
| Name a Valid Country #3 | 0 | - | 4.99 | 260,038 |
| Name a Valid Country #1 | 0 | - | 4.99 | 284,053 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,676 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,842 |
| Name a Valid Country #5 | 0 | - | 4.99 | 190,017 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,128 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,595 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,665 |
| Name a Valid Country #8 | 0 | - | 4.85 | 96,202 |
| Name a Valid Country by Disputed Area | 0 | - | 4.74 | 45,248 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,373 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,574 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,254 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,709 |
| History Analogies #1 | 0 | - | 4.53 | 89,800 |
| History Analogies #2 | 0 | - | 4.49 | 77,024 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,190 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,979 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,946 |
| History Analogies #3 | 0 | - | 4.61 | 80,459 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,190 |
| Which Came First? | 0 | - | 4.37 | 74,435 |
| Random History by Country | 0 | - | 4.53 | 34,679 |
