Just too many errors in this one. The Harry Potter book is the Chamber of Secrets, not Secret. "Jubilee", "King" and "Baker" are not tube stations. (Jubilee is a line, Baker Street is a station, and I have no idea where King comes from at all)

I got 3 by fluke. These answers don’t make sense at all. What has King got to do with underground stations? Needs editing.

Your tube stations are incomplete. King’s Cross, Baker Street. Piccadilly and Jubilee are both lines not stations.