Hello Samriddhi,
There will not be right or wrong answers for situation questions like this.The interview panel in all probability would like to know only your response but not that of others.Further each one responds to such situations in his own manner which is conditioned by his own behavior which again is based on his knowledge and experience of such situations and not only that, there may be further questions on your response which you may it difficult to answer if you project other's response as your own. Secondly the response will depend on business context,and goals or culture.which you have not spelt Therefore, it is not appropriate to seek responses from others.however some basic guidelines may be of help to you in framing your own responses to such questions.
Query no.(1).
The idea must not be vague.it shall be clear.It shall be relevant to the context. It shall be practical and attainable, if it is a goal or a method or a solution.Presentation requires clear articulation of idea to the panel.
Query No.(2)
The context is not clear.However recruitment also requires sales skills as a recruiter is required to sell the profile to prospective candidates(customers) and shall be able to convert a contact into a transaction(acceptance of job offer). a recruiter shall have fair knowledge of employment market i.e about sourcing of candidates and competitors and salary packages etc.
Query No.(3)
This can be best answered by you as it is purely an individual preference.
Query no.4
Poaching is making an employee leave a competitor's service with attractive offers of package and career etc to join your organisation..
Query No.5
Recruitment experts can answer this.Probably the prioritization depends up on the value of the post to client's business, the urgency of filling the post and the level of seniority etc.
Hope this helps.
B.Saikumar