Verbal Reasoning - Mental Ability Questions

What will be the next set of alphabets in the series? PBA, QCB, RDC, SED, ___

In the following question, select the related word pair from the given alternatives.
Ammeter : Current : : ? : ?

If 4!4 = 4, 14!2 = 8 and 10!18 = 14, then find the value of 2!6 = ?

In a certain code, if DOG is written as 4157, then what will MAT be written as ?

Select the related word/letters/number from the given alternatives.
96 : 32:: 48 : ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

9, 1331, 18, 121, 27, ?

Find the next term in the following series. Z26, X24, V22, .........

If A is taller than B, B is shorter than C, D is shorter than A, then what is definitely true?