Question 1. I want to know if it is possible to import into 188.8.131.52 Linux 64 bit? Will it work?
Yes it will work if you follow this document:
Export/Import EBS release 12.0 or 12.1 with RDBMS 12c (Doc ID 1585256.1)
Question 2. Metalink has a patch p17694377 to download database while e-delivery also has 184.108.40.206 software. Which one is right to use in my case.
They are the same software.
I downloaded from e-delivery and follow document 741818.1 and found that impdp did not import CTXSYS schema.
Did you follow the document I mentioned earlier?
What errors did you encounter?