If A is the sister of B and C is the brother of A, how is C related to B?

A. BROTHER

In a coding system, 'RAT' is coded as '91220'. What is the code for 'TAR'?

A. 22019

If 'APPLE' is coded as '13524', what is the code for 'LEAP'?

A. 5243

If 'MANGO' is coded as 'NBOPH', what is the code for 'PEAR'?

A. QFBT

Select the odd pair of numbers from the list.

D. 25, 30