Q:

 A – B means ‘A is the mother of B’
 A * B means ‘A is the sister of B’
 A % B means ‘A is the husband of B’
 A $ B means ‘A is the son of B’
 If P – Q – R * S $ T, then how is P related to T?

• 1
  Mother
• 2
  Mother-in-law
• 3
  Sister
• 4
  Sister-in-law