Problem: Which element, atomic number 5, has the symbol B?
Answer: boron

Problem: """And our friends are all aboard, many more of them live next door"" is a line from which 'Beatles' song?"
Answer: yellow submarine

Problem: What highly flammable metal, easy to ignite when powdered, producing a brilliant white light, and difficult to extinguish, being able to burn in both nitrogen and carbon dioxide, was used in incendiary weapons for firebombing cities in World War II and as a source of illumination in the early days of photography?
Answer: magnesium

Problem: On the cover of the album Abbey Road by The Beatles, which company manufactured the white car parked on the footpath to the left of the picture?
Answer:
volkswagen beetle