Sir Hubert Wilkins, polar explorer; Charles "Buddy" Rogers screen star and May Questelle, (Mae Questel) impersonator, are billed for air appearances tonight. Sir Hubert is to be interviewed by Grandland Rice on WEAF and stations at 10:30 p.m. When he is expected to tell of his proposed submarine trip to the North Pole. Rogers also is to be interviewed answering questions put to him by Louella Parsons in the Musical Cocktail on WABC and network at 8:30 p.m. Miss Questelle isto be guest artist in the Pleasure Hour, broadcast twice on the WJZ chain for one network at 9:30 p.m. And for the middle and far West at 11:15. She is to imitate Helen Kane, Irène Bordoni and Maurice Chevalier.