Verbal Reasoning - Mental Ability Questions

Select the related number from the given alternatives.

39 : 52 :: 51 : ?

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

PEON : QGRR : : RUDE : ?

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

Haemoglobin : Blood : : Chlorophyll : ?

Select the related number from the given alternatives.

0.04 : 0.2 :: 0.09 : ?

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

GROUPS : ITQWRU : : SECOND : ?

Insert the missing character depicted by '?'

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

9 : 738 : : 10 : ?

Which number replaces the '?' in the given series

108, 127, 2413, 2430, 41310, ?, 619875