1)
Why did Melech Yisrael send to where Elisha said?
1.
Rashi: He wanted to see if Elisha said correctly.
2)
Why is there a Hei at the end of "v'Hizhiro"?
1.
Radak: We find like this, e.g. "Ohalo" (Bereishis 9:21).
3)
How many times is "Lo Achas v'Lo Shetayim"?
1.
Rashi: It was many times. Radak - this is like "Ish Echad Lo Gava ba'Avono" (Yehoshua 22:20), i.e. not only one died. Malbim (9) - Ru'ach Elokim constantly dwelled on Elisha.