Problem: Who has more scope of profession, Burton Cummings or Tom Barman?

A: Burton Lorne Cummings

Problem: Were both Primo Levi and Bryce Courtenay advertising directors?

A: no

Problem: Which artist was born earlier? Jerry Garcia or Danny Elfman?

A: Jerome John Garcia

Problem: What type of vegetation does Ceratostigma and Crocosmia have in common?

A:
plants