1)
Why did Yosef incarcerate them for three days before releasing them?
1.
Ramban: (a) To frighten them; (b) to convince them that he feared Hashem. 1
QUESTIONS ON RASHI
2)
Rashi writes: "Mishmar - [i.e.] jail." But perhaps it only means being placed under [surveillance by] guards (Shomrim)?
1.
Gur Aryeh: The verse says he "assembled them," i.e., into a specific place where people are held.
