Misc: degringolade means to fall and----------?

Questions

name that show: murray, cody, nick & roboboz live on a boat & solve crimes.?

name the airplane used in "sky king." (name of the plane, not make/model)?

name the big, black truck used to shuttle k.i.t.t. from place to place.?

what was the more official name of the love boat (prior to the name change)?

a burning smell is present whenever who is nearby?