What are Kiyor, Dud, Kalachas and Parur?
Rashi: Dud, Kalachas and Parur are a pot, kettle 1 and pan, respectively. (He does not explain Kiyor.)
Radak: They are kinds of pots.
Malbim: Kiyor is a big pot for a big bull. Dud is a smaller pot for a small (calf or bull). Parur is even smaller, for a kid. They did not distinguish, and took the same from a big or small animal. (He does not explain Kalachas.)
In Michah 3:3, Rashi said chaldiere in old French, which is for heating water.
What is the meaning of "Ya'aleh"?
Radak: It is Hifil (what the fork will bring up).
Why does it say "l'Chol Yisrael"?
Malbim: They did not distinguish, and took the same even if the owner was poor, or had a big household. Also this was unjust.