Part A - General Intelligence and Reasoning
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' and
'A ÷ B' means 'A is the father of B'.
How is M related to O if 'K ÷ L × M – N + O'?
Wife's father
Mother's brother
Mother's husband
Daughter's husband
Select the figure from among the given options that can replace the question mark (?) in the following series. 
Which two numbers should be interchanged to make the given equation correct?
9 × (34 − 15) + (105 ÷ 7) + 28 + (13 × 4) = 218
(Note: Interchange should be done of entire numbers and not individual digits of a given number