Misc: How many top ten digit hits came from Lionel Richie's LP "Can't Slow Down"?

Questions

This word is used as the international radio distress call?

This world class model recently crashed in a helicopter?

Thomas Savery & Thomas Newcomen invented the....?

Thor is the god of thunder, Loki is the god of _____?

Three of the following U S Presidents appeared at one time or another on what's my line which one did not Jimmy Carter, Gerald Ford, Ronald Reagan, George Bush?