Who is: Guilty+rich ("Who is not rich", "Who is Guilty")
the: Climbing+Walking ("Climbing the stairs", "Walking the roads")
liar liar: Fire+Once ("Liar, Liar, Pants on Fire", "Once a liar, always a liar")
in: My Web+Your Field ("The hole in my web", "Four of us are in your field")
Contest Results: Cake-Bake+The soccer+Quiz ("Cake-Bake Contest" + "Contest" + "The Soccer Results" + "Quiz Results")
The answer to this question is Bert.