| Name a Valid Country A-Z | 0 | - | 4.97 | 84,638 |
| 7 Deadly Sins Quiz | 0 | - | 4.86 | 347,807 |
| Disney Animated Characters | 0 | - | 4.88 | 576,632 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 108,814 |
| Name a Valid Year in History | 0 | - | 4.92 | 54,239 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,012,923 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 140,326 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 182,386 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 162,389 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 177,486 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 287,837 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.82 | 66,134 |
| Military History Vocabulary | 0 | - | 4.92 | 60,613 |
| The Only Country ... | 0 | - | 4.88 | 47,256 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 109,672 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.96 | 107,165 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 286,293 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 209,256 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 200,160 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 170,510 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 66,890 |
| Countries that Start with A | 0 | - | 4.98 | 1,960,441 |
| Countries that Start with B | 0 | - | 4.95 | 2,099,469 |
| Countries that Start with C | 0 | - | 4.96 | 1,661,015 |
| Countries that Start with D | 0 | - | 4.96 | 602,405 |
| Countries that Start with E | 0 | - | 4.95 | 1,243,520 |
| Countries that Start with G | 0 | - | 4.97 | 1,363,143 |
| Countries that Start with H | 0 | - | 4.96 | 513,816 |
| Countries that Start with I | 0 | - | 4.92 | 1,172,407 |
| Countries that Start with J | 0 | - | 4.98 | 516,541 |
| Countries that Start with K | 0 | - | 4.96 | 721,505 |
| Countries that Start with L | 0 | - | 4.98 | 981,134 |
| Countries that Start with N | 0 | - | 4.93 | 1,007,277 |
| Countries that Start with P | 0 | - | 4.95 | 1,109,906 |
| Countries that Start with S | 0 | - | 4.98 | 1,616,587 |
| Countries that Start with T | 0 | - | 4.89 | 918,570 |
| Countries that Start with U | 0 | - | 4.96 | 828,492 |
| Countries that Start with V | 0 | - | 4.98 | 554,852 |
| Countries that Start with F | 0 | - | 4.83 | 543,916 |
| Countries that Start with M | 0 | - | 4.97 | 1,263,976 |
| Asian Geography By Letter - B | 0 | - | 4.83 | 62,068 |
| Capitals A-Z | 0 | - | 4.85 | 42,049 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 215,333 |
| History Analogies #1 | 0 | - | 4.47 | 76,232 |
| History Analogies #2 | 0 | - | 4.51 | 64,731 |
| History Analogies #3 | 0 | - | 4.54 | 66,885 |
| Valid Answer - World History #2 | 0 | - | 4.41 | 39,641 |
| Popular Royal Names | 0 | - | 4.27 | 117,040 |
| Valid Answer - World History #1 | 0 | - | 4.57 | 56,577 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 66,714 |
| Invasions | 0 | - | 4.71 | 90,023 |
| First Names of Historical Figures #1 | 0 | - | 4.41 | 217,463 |
| Normandy D-Day Beaches | 0 | - | 4.81 | 36,946 |
| Territory Changes in World War I | 0 | - | 4.87 | 40,701 |
| Best Selling Artists by Letter Quiz | 0 | - | 4.10 | 40,676 |
| Colors by Letter | 0 | - | 4.24 | 155,028 |
| Richest Countries A-Z | 0 | - | 4.92 | 89,196 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 109,697 |
| 5-Letter History Chain #3 | 0 | - | 4.48 | 50,988 |
| 6-Letter History Chain #2 | 0 | - | 4.53 | 51,136 |
| 5-Letter History Chain #1 | 0 | - | 4.53 | 83,940 |
| G7 Leaders Since 2003 | 0 | - | 4.46 | 38,782 |
| First Names of Painters | 0 | - | 4.38 | 56,547 |
| WWII A-Z #1 | 0 | - | 4.79 | 94,275 |
| WWII A-Z #2 | 0 | - | 4.47 | 50,368 |
| WWII Geography | 0 | - | 4.81 | 100,300 |
| WWII Decoder | 0 | - | 4.44 | 49,168 |
| Name a Valid Answer - World War II | 0 | - | 4.51 | 48,507 |
| WWII Figures by Picture | 0 | - | 4.88 | 41,196 |
| Quotes from Historical Figures #1 | 0 | - | 4.48 | 82,453 |
| Famous Empires in History | 0 | - | 4.83 | 105,001 |
| History General Knowledge #1 | 0 | - | 4.51 | 99,869 |
| History General Knowledge #3 | 0 | - | 4.50 | 76,338 |
| History General Knowledge #6 | 0 | - | 4.42 | 70,510 |
| History General Knowledge #10 | 0 | - | 4.44 | 62,488 |
| Fictional Characters by Picture - A | 0 | - | 4.16 | 80,724 |
| Fictional Characters by Picture - B | 0 | - | 4.11 | 67,507 |
| Fictional Characters by Picture - C | 0 | - | 4.22 | 72,537 |
| Fictional Characters by Picture - D | 0 | - | 4.25 | 66,047 |
| Fictional Characters by Picture - F | 0 | - | 4.38 | 58,786 |
| Fictional Characters by Picture - G | 0 | - | 4.27 | 77,702 |
| Fictional Characters by Picture - H | 0 | - | 4.17 | 61,937 |
| Fictional Characters by Picture - L | 0 | - | 4.28 | 73,412 |
| Fictional Characters by Picture - M | 0 | - | 4.16 | 80,783 |
| Fictional Characters by Picture - P | 0 | - | 4.22 | 57,759 |
| Fictional Characters by Picture - S | 0 | - | 4.22 | 60,557 |
| Fictional Characters by Picture - T | 0 | - | 4.12 | 78,031 |
| Fictional Characters by Picture - W | 0 | - | 4.23 | 70,296 |
| Fictional Characters by Picture - N | 0 | - | 4.08 | 43,101 |
| Fictional Characters by Picture - O | 0 | - | 4.28 | 46,428 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.48 | 43,914 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.53 | 37,735 |
| Random Countries Hidden in the World Map | 0 | - | 4.85 | 94,122 |
| Vegetables: No Vowels | 0 | - | 4.78 | 67,946 |
| Name a Major European City A-Z | 0 | - | 4.34 | 43,344 |
| One Country By Letter By Continent | 0 | - | 5.00 | 73,711 |
| One Capital by Letter by Continent | 0 | - | 4.92 | 3,607 |
| Groups of Things - History #1 | 0 | - | 4.37 | 87,069 |
| Groups of Things - History #2 | 0 | - | 4.38 | 74,963 |
| History Analogies #4 | 0 | - | 4.17 | 50,856 |
| History Groups of Two | 0 | - | 4.31 | 38,154 |
| Former Countries by Territory Map | 0 | - | 4.97 | 86,732 |
| Empires by Maps | 0 | - | 4.98 | 95,997 |
| Wolfcam's Random History General Knowledge | 0 | - | 4.43 | 19,674 |
| Ancient Greece A-Z | 0 | - | 4.63 | 20,919 |
| Famous Dictators Quiz #1 | 0 | - | 4.75 | 184,271 |
| Art Works Picture Quiz #1 | 0 | - | 4.50 | 97,123 |
| Art Works Picture Quiz #2 | 0 | - | 4.46 | 86,581 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 46,837 |
| Cold War Decoder | 0 | - | 4.75 | 47,251 |
| Famous Battles Quiz | 0 | - | 4.25 | 46,789 |
| Name the War Quiz | 0 | - | 4.39 | 190,895 |
| People Who Were "The" Something | 0 | - | 4.21 | 129,629 |
| Famous U.S. Generals | 0 | - | 4.25 | 37,047 |
| Religions by Country of Origin Quiz | 0 | - | 4.29 | 72,911 |
| Names for Warriors | 0 | - | 4.40 | 34,685 |
| First Names of Historical Figures #2 | 0 | - | 4.37 | 35,401 |
| 17th Century A-Z | 0 | - | 4.61 | 24,192 |
| Military History A-Z | 0 | - | 4.21 | 19,647 |
| "Of Something" Book Titles | 0 | - | 4.43 | 45,595 |
| Famous Lines of Poetry #1 | 0 | - | 4.52 | 32,340 |
| Fruits: No Vowels | 0 | - | 4.78 | 91,275 |
| Movie Characters A-Z | 0 | - | 4.09 | 45,677 |
| World Cities A-Z #1 | 0 | - | 4.54 | 59,126 |
| World Cities A-Z #2 | 0 | - | 4.46 | 51,775 |
| Africa A-Z | 0 | - | 4.54 | 43,893 |
| Historical Leaders by Date #1 | 0 | - | 4.50 | 28,390 |
| Historical Leaders by Date #2 | 0 | - | 4.54 | 27,335 |
| Historical Rulers #2 | 0 | - | 4.26 | 43,375 |
| Historical Rulers #1 | 0 | - | 4.32 | 111,807 |
| 4-Letter History Chain #1 | 0 | - | 4.40 | 77,819 |
| 5-Letter History Chain #2 | 0 | - | 4.34 | 57,784 |
| 6-Letter History Chain #1 | 0 | - | 4.31 | 63,404 |
| 4-Letter History Chain #2 | 0 | - | 4.32 | 44,475 |
| 4-Letter History Chain #3 | 0 | - | 4.34 | 47,406 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 102,448 |
| UN Secretaries-General | 0 | - | 4.42 | 7,162 |
| Mythical Lands | 0 | - | 4.24 | 81,722 |
| Answers Contain "Saint" | 0 | - | 4.08 | 40,422 |
| First Name + Initial Quiz | 0 | - | 4.04 | 50,177 |
| One-Name Historical Figures Quiz #1 | 0 | - | 4.28 | 66,055 |
| Quotes from Historical Figures #2 | 0 | - | 4.39 | 39,989 |
| Historical Misquotes | 0 | - | 4.41 | 25,948 |
| Famous Speeches from History | 0 | - | 4.15 | 32,404 |
| History General Knowledge #5 | 0 | - | 4.34 | 84,467 |
| History General Knowledge #7 | 0 | - | 4.34 | 69,132 |
| History General Knowledge #8 | 0 | - | 4.32 | 66,000 |
| History General Knowledge #9 | 0 | - | 4.39 | 63,324 |
| History General Knowledge #12 | 0 | - | 4.30 | 49,867 |
| History General Knowledge #11 | 0 | - | 4.40 | 53,383 |
| History General Knowledge #2 | 0 | - | 4.26 | 92,336 |
| History General Knowledge #4 | 0 | - | 4.31 | 90,816 |
| Books with Names in the Title Quiz #2 | 0 | - | 4.41 | 51,117 |
| Religion Analogies | 0 | - | 4.40 | 51,448 |
| Literary Quotes #1 | 0 | - | 4.45 | 24,869 |
| Chess Pieces (With Board and Pictures!) | 0 | - | 4.50 | 70,152 |
| Fictional Characters by Picture - E | 0 | - | 3.96 | 48,926 |
| Fictional Characters by Picture - J | 0 | - | 3.95 | 64,316 |
| Fictional Characters by Picture - R | 0 | - | 4.00 | 66,305 |
| Characters from Books #2 | 0 | - | 4.41 | 75,149 |
| World Cities by Clue Quiz #2 | 0 | - | 4.45 | 47,659 |
| Cities that End in A by Clue | 0 | - | 4.56 | 48,756 |
| Cities that End in O by Clue | 0 | - | 4.54 | 49,292 |
| Cities that End in N by Clue | 0 | - | 4.54 | 43,300 |
| Cities that End in I by Clue | 0 | - | 4.58 | 52,978 |
| Cities that End in S by Clue | 0 | - | 4.58 | 41,402 |
| Three Letter Acronyms #1 | 0 | - | 4.13 | 65,221 |
| Four-Letter Acronyms | 0 | - | 4.31 | 106,343 |
| Three-Letter Acronyms #2 | 0 | - | 4.23 | 44,683 |
| Astronomy Decoder | 0 | - | 4.51 | 35,348 |
| U.S. Chain Restaurant Menu | 0 | - | 4.05 | 134,996 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.63 | 64,347 |
| Category Elimination - Countries #5 | 0 | - | 4.71 | 129,333 |
| Category Elimination - Elements | 0 | - | 4.66 | 48,195 |
| 100 Most Common English Words | 0 | - | 4.90 | 1,180,394 |
| Countries that Start with R | 0 | - | 4.45 | 392,173 |
| Asian Geography By Letter - A | 0 | - | 4.65 | 67,623 |
| European Geography By Letter - A | 0 | - | 4.55 | 125,124 |
| European Geography By Letter - B #1 | 0 | - | 4.75 | 104,134 |
| European Geography By Letter - C | 0 | - | 4.43 | 105,498 |
| European Geography By Letter - D | 0 | - | 4.51 | 100,094 |
| European Geography By Letter - L | 0 | - | 4.51 | 105,641 |
| European Geography By Letter - M | 0 | - | 4.55 | 115,029 |
| European Geography By Letter - P | 0 | - | 4.79 | 90,173 |
| European Geography By Letter - N | 0 | - | 4.42 | 94,002 |
| European Geography By Letter - V | 0 | - | 4.45 | 86,865 |
| Asian Geography by Letter - H | 0 | - | 4.47 | 62,008 |
| Asian Geography By Letter - M | 0 | - | 4.46 | 58,468 |
| Asian Geography by Letter - P | 0 | - | 4.43 | 54,259 |
| Asian Geography by Letter - T | 0 | - | 4.48 | 46,579 |
| European Geography By Letter - S #1 | 0 | - | 4.58 | 94,322 |
| Asian Geography By Letter - L | 0 | - | 4.45 | 39,359 |
| European Geography By Letter - B #2 | 0 | - | 4.74 | 62,638 |
| The Americas Geography by Letter - B | 0 | - | 4.51 | 49,041 |
| The Americas Geography by Letter - S | 0 | - | 4.56 | 41,663 |
| Middle East A-Z | 0 | - | 4.45 | 43,259 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.44 | 41,544 |
| Google What's the Difference? - History | 0 | - | 4.21 | 43,695 |
| Metals of Antiquity | 0 | - | 4.93 | 85,841 |
| Russian History A-Z | 0 | - | 4.35 | 17,525 |
