Answers.com does indeed timestamp its edits and changes made to questions. When you are on a question page look on the left hand sidebar and select "Question History". From there you can see all changes that were made and when to a certain question.
janaury 2005.
That depends on the date of the crossword. Please see the related questions for specific answers by date.
The answers to questions for jeopardy on any date and the questions can be found under the related link
if you want the chess it is 20
That depends on the date of the crossword. Please see the related questions for answers for specific dates.
Date stamps are available at most office supply stores. Office Max, Office Depot and Staples all carry date stamps. Target and Walgreen's are also places to look for a date stamp.
Date stamps are popular office supplies available at many retailers and through online shops. Some companies have self-inking date stamps for as low as 9.99$ (USD). Other self-inking date stamps are priced at 19.99 - 56.00$ (USD).
The User ID, Date, and Time are in Question History. The link is on the left.
Registered users can use the "History of changes" option on the left menu.
No, questions that you answered before joining The Initiates Program do not count towards your total for the answering questions mission. Only answers from the date you begin the mission count towards your total. You can check your total number of answers by clicking on "My contributions" on the blue menu and filtering to "Answers (new)".
That depends on the date of the puzzle. See the related questions for the answers on specific dates.
At the Jeopardy Archive you can see the final question for any date, but it is not a list of questions. It is a record of the shows questions and answers for a number of seasons. see related link