music: 50's Chart Toppers: Name The Artist: My Melancholy Baby?

Questions

The top basketball player of the decade?

The Toronto Maple Leafs used to be originally called what?

The tower over a castle draw bridge is a(n)....?

The treatment of disease by chemical substances which are toxic to the causative micro organisms is called ________?

The true seals are a diverse & widely distributed group of mostly marine & ___________?