21 is related to 220 by a certain logic. Following the same logic, 72 is related to 781. To which of the following is 27 related, following the same logic? (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits.)

Based on a certain logic, 'ZY5' is related to 'UT15'. Similarly, 'ML20' is related to 'HG30'. Following the same logic, to which of the following is 'RQ40' related?

Select the related letter pair from the given alternatives: HU : JW :: ?

According to a certain logic, 'ZY5' is related to 'UT15'. Similarly, 'ML20' is related to 'HG30'. Following the same logic, to which of the following is 'RQ40' related?