'A' sues 'B' for compensation on account of trespass. 'B' holds a promissory note for Rs. 50,000 from 'A'. Under Order VIII Rule 6 of the Code of Civil Procedure, 1908, can 'B' set off that amount of Rs. 50,000 in this suit?

Under Section 113 of the CPC, a Reference can be made to the High Court during the pendency of a case when:

The purpose of ________ is to enable subordinate courts to obtain, in non-appealable cases, the opinion of the High Court on a question of law and thereby avoid the commission of an error which could not be remedied later.