Analogy Questions

In the following question, select the related letter pair from the given alternatives.PIR : OHQ : : ? : ?

In the following question, select the related letters from the given alternatives.
AGN : IOV : : BLM : ?

In the following question, select the related word from the given alternatives.
Pressure : Barometer : : ? : Odometer

In the following question, select the related letters from the given alternatives.
JKLM : IIII : : PQRS : ?

In the following question, select the related word from the given alternatives.
Book : Pages : : Continent : ?

Select the related word/letters/number from the given alternatives.
MUMBAI: UMBMIA :: GURUGRAM : ?

Select the related word from the given alternatives.
River : Stream :: Ocean : ?

Select the related word/letters/number from the given alternatives.
Luminous intensity : Candela : : Pressure : ?