What is the full form of PPLO with respect to

Select the option in which the pair of letter clusters is related in the same way as the pair of letter clusters given below.

GPU: KTY 

If 45 @ 15 = 18' and 28 @ 28 =19', then 48 @ 30 = ?'. What will come in place of question mark?

If 27 @ 22 = 18 and 29 @ 24 = 21, then 12 @ 25 = ?'. What will come in place of question mark?

Select the option that is related to the third number in the same way as the second number is related to the first number.

72 : 101 :: 98 : ?

Select the option that is related to the third term in the same way as the second term is related to the first term.

VGD: SDA:: USF : ?

Audacious : Courageous : : Deflate : ______.

Select the number combination of letters that when placed sequentially in the blanks of the given series will complete the series.\

Select the option that is related to third letter cluster in the same way as second letter cluster is related to first letter cluster.

CAT: JHA:: PUG: ?

In the following question, select the missing number of the given series.

95, 101, 93, 103, 91, ?