Verbal Reasoning - Mental Ability Questions

In the following question, select the related number pair from the given alternatives.

41 : 66 : : ? : ?

If 7∆6 = 84, 1∆4 = 8 and 2∆3 = 12, then find the value of 8∆4 = ?

Select the related word/letters/number from the given alternatives.

JK : TV : : OP : ?

Select the related letters from the given alternatives.

WTQ : DGJ :: NKH : ?

Select the related word/letters/number from the given alternatives.

12 : 72 : : 13 : ?

Select the related word/letters/number from the given alternatives.

ENLARGE : EGRALNE : : ? : RETOOCS

Select the related word/letters/number from the given alternatives.

DEMONSTRATE : NOMEDSETART : : CORRUPT : ?

Select the related word/letters/number from the given alternatives.

APPEAR : FUUJFW : : GRIND : ?