Read the following information carefully and answer the question given below:
'A + B' means 'A is the father of B'
'A - B' means 'A is the husband of B'
'A × B' means 'A is the daughter of B'
'A ÷ B' means 'A is the sister of B'

If P + M ÷ Q × N × T - U, then how is P related to N?

Let's decode the expression P + M ÷ Q × N × T - U step-by-step from left to right:
P + M: P is the father of M.

M ÷ Q: M is the sister of Q. Therefore, P is also the father of Q.

Q × N: Q is the daughter of N. Since P is the father of Q, N must be the mother of Q and the wife of P.

N × T: N is the daughter of T.

T - U: T is the husband of U.

From the above analysis, P and N are married to each other where P is the husband and N is the wife.
Hence, P is the husband of N.