The [Aramaic] translation of the Torah, as part of the Torah itself: Nedarim 37b
Whether the Torah was meant to be read in any language, or not: Megillah 17b
Rav and Levi teaching different Aramaic translations of Bereishit 49:27, tied to their halachic views: Zevachim 54a
Translating the Torah, in a Scroll, into Greek: Megillah 8b, 9b, 18a
Translating the Torah, in a Scroll, into non-Greek foreign languages: Megillah 8b, 9b
Writing a Hebrew section of the Torah in Aramaic, or the reverse, in Assyrian or other alphabets: Megillah 8b-9a
Using a foreign language to interpret a word from the Torah: Shabbat 95a; Pesachim 61a; Rosh HaShanah 26a-b; Succah 5b, 35a; Megillah 9a; Moed Katan 28a; Sanhedrin 4b; Zevachim 37b
The translations were intially known, but then were forgotten and re-established: Megillah 3a