Do meditative "exercises" and "mental workouts" enhance the ability to reach enlightenment?

If i were to practice some serious brain training regimens for a short period to develop my mundane mental faculties into almost super powers... or even to develop Super mundane powers... 1- Would that enhance my ability to become fully "Enlightened" (not nibanna or arahantship) faster and/or with more ease? 2- Would it help me to help others reach full enlightenment more?