Who was the first Australian wicket keeper to score a century and take 3 dismissals in a ODI World Cup match?

Answer 1

Adam Gilchrist
Widely regarded as the greatest wicket-keeper–batsman in the history of the game,[4][5] Gilchrist held the world record for the most dismissals by a wicket-keeper in One Day International (ODI) cricket until it was surpassed by Kumar Sangakkara in 2015 and the most by an Australian in Test cricket.