<Li> Crystal Ball - Used in the US version of the show, as part of specially designated weeks that used the "Shuffle Format". When used during the first round, the contestant is allowed to see the cash amount that is designated to the question they are currently on . </Li> <Li> Ask the Host - Used in the 20th anniversary of the British Original . When used by the contestant, the host uses their knowledge of a question's subject, gives their thoughts about the question, and tries to assist them with finding the correct answer out of the choices given . The lifeline features no time limit, and the host reassures all they have no connection to the outside world and receive the question and possible answers for it at the same time as the contestant, and thus have no knowledge of what the correct answer is . </Li> <P> Out of all contestants that have played the game, few have been able to win the top prize on any international version of the show . The first was John Carpenter, who won the top prize on the U.S. version on 19 November 1999 . Carpenter did not use a lifeline until the final question, using his Phone - a-Friend not for help but to call his father to tell him he had won the million . </P> <P> Other notable top prize winners include Judith Keppel, the first winner of the UK version; Kevin Olmstead from the U.S. version, who won a progressive jackpot of $2.18 million; Martin Flood from the Australian version, who was investigated by producers after suspicions that he had cheated, much like Charles Ingram, but was later cleared; and Sushil Kumar from the Indian version, who is often referred to in Western media as the "real - life Slumdog Millionaire". </P>

What are the rules for who wants to be a millionaire