Por & Para

Question 1

Por

Answer 1

Cause, reason, motive ( because of,
Behalf of, for
Sake of
Duration of time ( for, during, in, at )

Exchange, price ( for money, for, in exchange for )

General physical movement in and around a given place ( down by along through )

Question 2

Para

Answer 2

Purpose or a goal( in order to+ infinitive) 
Recipient ( for; used for + noun) 
Destination ( toward ) 
Deadline ( by, for) 
Employment