2)
Into the ovens -
Why does the Torah specify that the frogs will enter the ovens and the kneading-bowls (Shemos 7:28)?
3)
One frog -
Why does the Torah at first write "ha'Tzefarde'a" (Shemos 8:2), in the singular?
4)
Fitting punishment -
Why did Hashem send a plague of frogs upon the Egyptians?
5)
Only from Hashem -
What was unique about the plague of frogs? What was it supposed to teach Pharaoh?