Problem: 'Blood and Fire' is the motto of which charitable organisation?
======
A: salvation army

Problem: What in physics is the minimum amount of any physical entity involved in an interaction ?
======
A: quantum

Problem: "Slogans such as ""The Truth Is Out There"", ""Trust No One"" and ""I Want to Believe"" that became part of pop culture in the 1990s were from which TV series?"
======
A: x files

Problem: With which musical instrument does one associate Julian Lloyd Webber?
======
A:
cello