No, Jeopardy! contestants must rely on their general knowledge to help them succeed at the game; they are not provided with study materials nor or they given prior knowledge of the categories they will encounter during their game.
That would be against the rules and the answers on Jeopardy are the questions. That's why the answers are not correct unless they are in the form of a question. A TV Show can not allow there contestants to cheat or help them cheat since after a series of game show scandals of the 1950s caused the United States Congress to pass the 1960 amendments of the Communications Act of 1934, preventing anyone from fixing quiz shows. see related link
No that would be cheating and against FCC rules
no
The contestants dress themselves.
The Jeopardy! audition process differs from that of many other game shows in that it involves passing a difficult test of knowledge on a diversity of subjects, approximating the material encountered by contestants on the show.
handicapped people?
Once you pass the test you have auditions based on more than the ability to answer
no
During the commercial break after they find out the category.
They have had a few and will again. Travel to Jeopardy to audition is at a person's own expense.
Names of the Jeopardy Contestants are available at the Jeopardy archive. See related link and look for that date under the season for the episode
Unlike Jeopardy contestants keep the money won or get theminimum$1000
For contestants of the show they tell you the final category and then you must decide on the amount of your wager. They are various methods that contestants have used in the past to make this decision and they all take into account the other contestants score before final Jeopardy.
There are no answers to the Jeopardy TV Show as they do new questions each time the contestants want a question.
Contestants who successfully pass the tests play a short version of jeopardy. See the related link.