The phrase "fourteen unanswerable questions" (Avyakrta in Sanskrit), in Buddhism, refers to fourteen common philosophical questions that Buddha refused to answer, according to Buddhist Sanskrit texts. Pali texts give only ten.
Fourteen questions
Questions referring to the world: concerning the existence of the world in time
*Is the world eternal?
*or not?
*or both?
*or neither?
Pali texts omit "both" and "neither".
Questions referring to the world: concerning the existence of the world in space
*Is the world finite?
*or not?
*or both?
*or neither?
Pali texts omit "both" and "neither".
Questions referring to personal experience
*Is the self identical with the body?
*or is it different from the body?
Questions referring to life after death
*Does the Tathagata exist after death?
*or not?
*or both?
*or neither?
Buddha's answer to the questions, according to the scriptures
The Buddha remained silent when asked these fourteen questions. He described them as a net and refused to be drawn into such a net of theories, speculations, and dogmas. He said that it was because he was free of bondage to all theories and dogmas that he had attained liberation. Such speculations, he said, are attended by fever, unease, bewilderment, and suffering, and it is by freeing oneself of them that one achieves liberation.
____________________________________________________________________________________
I read and extracted this from wikipedia. I thought it was rather interesting that there are 14 questions that the Buddha didn't or refused to answer.
In your opinion, why did the Buddha refused to answer this 14 questions. In fact, what is your opinion about these questions and how answering or not answering it will help us in our spiritual growth?