1) Ch. 8, v. 6: "Va'yo'meir l'mochor" And he said "tomorrow" Given that this plague was exceedingly difficult, why would Paroh not demand that it be removed immediately?
2) Ch. 8, v. 9: "Va'yomusu hatzfardim" And the frogs died Didn't Moshe say that they would leave, "v'SORU hatzfardim" (verse 4)?
3) Ch. 8, v. 25: "V'sor he'orove" And the mixture of wild animals will leave The M.R. 10:6 says that although the frogs died and remained in Egypt, the wild animals did not. Had they died their carcasses and hides could have been beneficial for the Egyptians. This is why they were removed from the country. What other explanation is there for this difference?
4) Ch. 9, v. 19: "Ho'eiz es mik'n'cho" Gather in your livestock Here by "borod" Moshe advised Paroh how to have damage control. Why didn't he do the same earlier by "devver?"
5) Ch. 9, v. 34,35: "Va'yosef lachato, V'lo shilach" And he continued to sin, And he did not send out Every time that Paroh agreed to send the bnei Yisroel free when requesting Moshe to pray to bring a plague to a stop, when the plague stopped he would immediately change his mind. If so, why does the Torah point out specifically here that he continued to sin?