| Metals of Antiquity | 0 | - | 4.94 | 92,980 |
| The Only Country ... | 0 | - | 4.91 | 80,026 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,147 |
| Nicknames in World History | 0 | - | 4.74 | 37,414 |
| "Second Best" History Edition | 0 | - | 4.93 | 62,011 |
| 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 | 35,421 |
| First Names of Historical Figures #2 | 0 | - | 4.32 | 40,273 |
| First Names of Historical Figures #1 | 0 | - | 4.39 | 228,680 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,740 |
| Empires by Maps | 0 | - | 4.98 | 118,722 |
| First Names of Explorers Quiz | 0 | - | 4.43 | 18,269 |
| Mythical Lands | 0 | - | 4.26 | 85,188 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,302 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,324 |
| Saint in the Answers | 0 | - | 4.10 | 44,179 |
| First Name + Initial Quiz | 0 | - | 4.03 | 52,747 |
| Historical Figures Known by a Single Name #1 | 0 | - | 4.31 | 84,585 |
| Quotes from Historical Figures #2 | 0 | - | 4.36 | 42,537 |
| 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 | 124,532 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,237 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,283 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,716 |
| First Names of Painters | 0 | - | 4.43 | 59,625 |
| Historical Middle Names - U.S. | 0 | - | 3.83 | 60,847 |
| Famous Mottos | 0 | - | 3.46 | 48,507 |
| 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 | 5,591,694 |
| Random Cities by Clue | 0 | - | 4.53 | 42,608 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,499 |
| Influential Women in History | 0 | - | 4.42 | 35,160 |
| Cradles of Civilization | 0 | - | 4.46 | 39,221 |
| Materials From History #1 | 0 | - | 4.56 | 51,073 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,223 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,314 |
| Famous Explorers | 0 | - | 4.58 | 35,995 |
| Famous Empires by Description | 0 | - | 4.73 | 117,996 |
| Answers by Time Period | 0 | - | 4.63 | 55,312 |
| Nicknames in U.S. History | 0 | - | 4.25 | 31,595 |
| 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 | 49,433 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,646 |
| Random Symbol to Element | 0 | - | 4.88 | 92,325 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,557 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,089,504 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,464 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,353 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,379 |
| 7 Deadly Sins | 0 | - | 4.88 | 395,616 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,104 |
| Cities that End in R by Clue | 0 | - | 4.68 | 18,648 |
| Cities that End in M by Clue | 0 | - | 4.62 | 20,922 |
| 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 | 47,616 |
| World Capitals by a Single Clue #2 | 0 | - | 4.46 | 53,338 |
| World Capitals by a Single Clue #4 | 0 | - | 4.41 | 38,222 |
| 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 | 169,644 |
| NHL Hockey Team Names by Clue | 0 | - | 4.35 | 86,356 |
| Countries with Four Letters | 0 | - | 4.99 | 418,956 |
| Random Capital to Country | 0 | - | 4.99 | 2,579,569 |
| Random Country to Capital | 0 | - | 4.98 | 912,508 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,578 |
| Name a Valid World City | 0 | - | 4.83 | 70,255 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 68,035 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,365 |
| U.S. Celebrity Gossip by Year, 1991–2009 | 0 | - | 3.75 | 38,137 |
| Former Flags | 0 | - | 4.97 | 106,834 |
| Years in History by Picture | 0 | - | 4.44 | 35,154 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,231 |
| Materials From History #2 | 0 | - | 4.59 | 31,242 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,589 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,022 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,877 |
| WWII First Names | 0 | - | 4.44 | 41,594 |
| Cold War Decoder | 0 | - | 4.83 | 51,982 |
| 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 | 66,498 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,844 |
| Assassinations in History | 0 | - | 4.21 | 66,001 |
| Famous Seconds | 0 | - | 4.22 | 46,409 |
| Ages and Eras | 0 | - | 4.38 | 67,501 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,417 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,656 |
| 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 | 91,737 |
| 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 | 57,284 |
| 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 | 43,467 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,528 |
| 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 | 1,011,285 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,091,530 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,686 |
| The Sun Quiz | 0 | - | 4.93 | 34,177 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,283 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,694 |
| Countries with Glaciers | 0 | - | 4.97 | 104,710 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 712,534 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,154 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,512 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,823 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,706 |
| Islands by Country #1 | 0 | - | 4.87 | 174,575 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,989 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,332 |
| 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 | 62,103 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 333,487 |
| Countries by Emojis | 0 | - | 4.99 | 236,914 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,028 |
| 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 | 198,468 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,587 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,483 |
| 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 | 45,769 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,373 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,192 |
| Country Chain | 0 | - | 4.96 | 215,883 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,425 |
| Random Countries by Borders | 0 | - | 4.99 | 81,741 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,098 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,402 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,394 |
| Random Point on Land to Country | 0 | - | 4.99 | 232,164 |
| Random Countries on a Topological Map | 0 | - | 4.90 | 51,309 |
| Find The Mystery Country Using Color Clues - Randomized! | 0 | - | 4.98 | 2,147,706 |
| Capital Cities Chain | 0 | - | 4.84 | 81,984 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,394 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,909 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,601 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,076 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,375 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,835 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,049 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,550 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,927 |
| Name a Valid Country #3 | 0 | - | 4.99 | 260,044 |
| Name a Valid Country #1 | 0 | - | 4.99 | 284,063 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,681 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,851 |
| Name a Valid Country #5 | 0 | - | 4.99 | 190,024 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,132 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,599 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,669 |
| Name a Valid Country #8 | 0 | - | 4.85 | 96,209 |
| Name a Valid Country by Disputed Area | 0 | - | 4.74 | 45,286 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,376 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,579 |
| 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 | 89,801 |
| History Analogies #2 | 0 | - | 4.49 | 77,025 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,191 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,980 |
| 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 | 34,683 |
