Verbal Reasoning - Mental Ability Questions

In the following question, select the related word from the given alternatives.
Hockey : Stick : : Boxing : ?

Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
H__JH__IJHHI__HH__JH

If 11$25 = 18, 12$20 = 16 then what is the value of 4$50 = ?

Golu is son of Bhola. Sheetal is daughter of Golu. Chitra is daughter of Dilip and Dilip is brother of Bhola. How is Chitra related to Sheetal?

If 'x' means addition, '­' means division, '÷' means subtraction and '+' means multiplication, then which of the equations is correct?

Find the missing number?

Select the related word/letters/number from the given alternatives.
Nephrology : Kidney : : Ichthyology : ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
MN, PQ, TU, YZ, ?