Hebrew and Aramaic.
The Old Testament (or Hebrew Bible) was written almost entirely in Hebrew. Some parts of the Old Testament were written in Aramaic. The New Testament was written in Greek.
None. The Old Testament is a compilation of several books. It is not in itself a book.
The Old Testament was completed by the second century BCE, long before Paul lived. He did not write any books in the Old Testament.
There are many translations on TalkingBibles.net however I don't know how many of the listed languages are Indian. If you want, you can go there and click on Old Testament or New Testament to see the listed languages.
The Old Testament was originally written in Hebrew. The New Testament was originally written in Greek.
The Bible is written in several ancient languages. The Old Testament is primarily written in Hebrew, with some portions in Aramaic. The New Testament is written in Greek. Additionally, there are a few words and phrases in the Bible that are in other languages such as Latin, Assyrian, and Persian, but these are relatively few in number.
Differences between the Old and New Testaments:They were written at very different timesThey were originally written in different languages (Old Testament in Aramaic and Hebrew, New Testament in Greek)The laws of the Old Testament were much more harsh. After the introduction of Christ in the New Testament, forgiveness and grace were a much heavier theme.
Stone tables mostly. However other materials like leafs were also used to write on.
The temporary language was used for most of the Old Testament books.
The tower of Babel. Genesis 11:1-9.
Hebrew, Greek and Aramaic = = The Old Testament was written in Hebrew and some Aramaic. The New Testament was written in Ancient Greek.
The word "grow" is used in the Old Testament 114 times, so the premise of the question is faulty.