useless trivia: What Word Means: A Ruff - A Fresh-water Perch?

Questions

who recorded volare in 1958??

what color light is displayed on the port side of a boat??

what was the theme song of the film "the grapes of wrath"??

who recorded the 1964 hit song "you never can tell"??

who won the men's shot put at the 1974 commonwealth games??