Based on the clue 'bet impair on a french roulette table youre betti...', what is the answer?

What is referred to by 'bestselling author margaret mitchell'? Based on the clue 'bestselling author seen here shes holding a large ...', what is the answer? What is referred to by 'bestselling author stephen pillsbury'? Based on the clue 'bestselling book that has its own belt 5', what is the answer? Based on the clue 'bet in which the bettor must correctly choose the ...', what is the answer? Based on the clue 'bet their charity foundation gets free software b...', what is the answer? Based on the clue 'bet this australian was toasty with the fur she of...', what is the answer? Based on the clue 'bet ya didnt know keanus matrix squeeze wrote you ...', what is the answer?