Series Completion - Verbal and Reasoning

Directions to SolveChoose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Q1:

Which of the following will not be a number of the series 1, 8, 27, 64, 125,.....?

A 256

B 512

C 729

D 1000

ANS:A - 256

Explanation: The given series consists of cubes of natural numbers only. 256 is not the cube of any natural number.