1) The only time we separate Nitzovim from Va'yeilech is when there is a Shabbos between Yom Kippur and Succos of the upcoming year. It would seem logical to always have Nitzovim and Va'yeilech joined as they total only seventy verses.
2) Ch. 29, v. 9: "A'tem nitzovim" – The word normally used for "standing" is "omdim." However, our verse says "nitzovim."
3) Ch. 31, v. 9: "HaKohanim bnei Levi HANOSIM es arone bris Hashem" - Compare this verse with 31:25 where it says "haL'viim NOSEI arone bris Hashem."
4) Ch. 31, v. 19: "V'atoh kisvu lochem es haSHIROH hazos" - Why is the feminine form SHIROH used rather than the masculine form SHIR?
5) Ch. 31, v. 27: "Hein b'o'de'ni chai" - This is one of the ten "kal vo'chomers" in the Torah. If you were rebellious against Hashem during my life time, all the more so will you be rebellious after my death. The gemara Sanhedrin 37a relates that there were wayward people living in the neighbourhood of R' Zeira. When R' Zeira died, they repented, saying that as long as R' Zeira was alive his merits protected them against retribution. After his death, they discontinued their bad ways, fearing punishment from Heaven. According to this story, isn't Moshe's kal vo'chomer refuted? During Moshe's lifetime people might have been rebellious against Hashem, with the hope that Moshe's merit would save them. However, after his death, they may not sin for fear of retribution. Click here for the answers!