Problem: "A song written by Chuck Berry is ""Roll Over ... "" who?"
Answer: beethoven

Problem: In warfare, what name is given to a hastily constructed temporary defence or a parapet a few feet high, the name deriving from the approximate height that it is built to?
Answer: breastwork

Problem: Which movie star married jockey Robyn Smith in 1980?
Answer: fred astaire

Problem: What model pioneered personal computing in the 1980s, selling over 20 million of its (then huge) 64k memory machines?
Answer:
commodore 64