The question is, "What are rights?" I believe the following questions will assist in formulating the answer.
From whence do rights come?
To whom do rights belong?
What human actions can be applied to rights? (Or what can one human do in regard to rights, such as respect, violate, waive, transfer, defend...)
What human actions cannot be applied to rights?
What is the difference between a right and a privilege?
Why is a concept of rights necessary?
What are rights? They are the fulcrum of equal justice, the balance of each individual's life, liberty and property against violations by all other individuals. I may not steal from you because you may not steal from me. I may not take your life, because you may not take mine. You may not enslave me, because I may not enslave you. You may not defraud me, because I may not defraud you. All the good intentions in the world, regardless of the number of individuals or governments you can get to back these violations of rights will never legitimize them.
See also this article by Robert Higgs: