Analogy Questions

In the following question, select the related number from the given alternatives.
243 : 819 : : 163 : ?

In the following question, select the related word from the given alternatives.
Calendar : Date : : Index : ?

Select the related word/letters/number from the given alternatives. GI : HJ : : PR : ?

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

Select the odd letters from the given alternatives.

Select the related word/letters/number from the given alternatives.
66 : 36 : : 99 : ?

In the following question, select the related number from the given alternatives.
9143 : 9963 : : 6731 : ?

Find the number of squares in the following figure.