Consider the following statements.

1. In civil cases, an appeal lies to the Supreme Court from any judgement of a high court if the high court certifies that the case involves a substantial question of law of general importance.

2. The Supreme Court is authorised to grant in its discretion, a special leave to appeal from any judgement in any matter passed by any court including military tribunal.

3. The Constitution authorises the Prime minister to seek the opinion of the Supreme Court on any dispute arising out of any pre-constitutional treaty.

Which among the above statements is/are correct?