A is the husband of B whose only daughter C is the wife of D. How is A's son related to D?

Kiran has a brother Anil. Kiran is the son of Palak. Ramesh is Palak's father In terms of relationship what is Anil of Ramesh?

Pointing to a man in a photograph, a woman said "His brother's father is the only son of my grandfather". How is the woman related to the man in the photograph?

A is the husband of B whose only daughter C is the wife of D. How is A's son related to D?

In a certain code language,
‘A + B’ means ‘A is the mother of B’,
‘A – B’ means ‘A is the brother of B’,
‘A × B’ means ‘A is the husband of B’ and
‘A ÷ B’ means ‘A is the father of B’.
How is M related to K if ‘M + N ÷ L – J × K’?

K is the sister of L. L is the son of M. M is the wife of N. N is the brother of O. How is K related to O?

In a certain code language,
‘A + B’ means ‘A is the mother of B’,
‘A - B’ means ‘A is the brother of B’,
‘A × B’ means ‘A is the wife of B’,
‘A % B’ means ‘A is the father of B’ and
‘A # B’ means ‘A is the daughter of B’.
How is N related to T if ‘C % T # E + P x N’?

In a certain code language,
A + B means ‘A is the mother of B’,
A – B means ‘A is the brother of B’,
A x B means ‘A is the wife of B’,
A % B means ‘A is the father of B’,
and A # B means ‘A is the daughter of B’.
How is E related to K if ‘K x N – L # E % C’?

In a certain code language,
' A+B ' means ' A is the daughter of B ',
' A - B ' means ' A is the husband of B ',
' A×B ' means ' A is the wife of B ' and
' A÷B ' means ' A is the son of B '.
How is P related to T if ' P+Q-R+S×T'?

R is the sister of S. J is the mother of R. I is the husband of J. T is the daughter of I. D is the mother of J. C is the father of T's mother. How is D related to T?