music: 50's Chart Toppers: Name The Artist: Runaround?

Questions

What's the most effective insulator brick, fibreglass or wood?

What's the offspring of a lioness & a tiger called?

Whats the term for a mass of diffused gas & ice particles in solar orbit?

When a a positive & negative plate are placed together in an electrical circuit which stores a charge in the form of an electric field it is called a _________?

When a female horse & male donkey mate, the offspring is called a what?