1) Ch. 12, v. 2: "V'tomoh shivas yomim" And she will be defiled for seven days Upon giving birth to a daughter she is defiled double this time (verse 5). Why double that of birth of a male?
2) Ch. 12, v. 7,8: "Zose toras ha'yoledes, V'im lo simtza yodoh" This is the law of the woman who gives birth, And if she cannot afford "Zose toras" is always reserved for the end of a subject. Why does the Torah place it here, in the middle of the laws of the offerings required of a woman who gives birth?
3) Ch. 13, v. 2: "Odom ki yi'h'yeh v'ore b'soro" A man who will have in the skin of his flesh M.R. Vayikra 17:4 says that Hashem does not go for the jugular vein immediately, but rather, He punishes in a lighter manner first, with the hope that the person gets the message, and if not, only then does He increase the punishment, and this is why first a nega is sent upon the house, then the garment, and finally upon the body. Yet, we find the order of the Torah in the reverse.
4) Ch. 13, v. 2: "V'huva el Aharon haKohein" And he shall be brought in front of Aharon the Kohein The gemara Zvochim 102a asks how Miriam attained the status of a "m'tzoraas," since Moshe was not a Kohein and Aharon was her relative. Why doesn't the gemara stick with the same reason for both Moshe and Aharon being disqualified by virtue of both being Miriam's brothers?
5) Ch. 13, v. 4: "V'hisgir haKohein es ha'nega" And the Kohein shall lock in the affliction According to those who translate "ha'nega" as "the afflicted person," why doesn't the verse clearly say, "hanogua?"