Verbal Reasoning - Mental Ability Questions

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

731 : 11 : : 991 : ?

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

TZ : W : : NT : ?

Select the related number from the given alternatives.

60 : 15 :: 100 : ?

Select the related letters from the given alternatives.

ACE : YAC :: BDF : ?

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

4: 1024 :: 7 : ?

Select the related word/letters/numbers from the given alternatives:

381 : 160 : :478 : ?

What is to be replaced in place of '?' in the following series ?

 A2BC, ?, ABC4, A5BC

A) A3BC

B) ABC3

C) AB3C

D) A2B3C4

Select the related word/letters/numbers from the given alternatives:

Length:Meter::Power:?