Does water collected in a pit on the ground contract impurity?
Halacha 1 states that water collected in a pit and other bodies of water on the ground (cisterns, storage trenches, mikveot) do not contract impurity, unlike water in a container.
Question 2
In the rainy season, what is the assumed status of water in hollows at the entrance to stores in the public domain?
Halacha 3 states that in the rainy season, the mud and water in hollows at the entrance to stores in the public domain are assumed pure. When the rains cease, they are considered as drainage water.
Question 3
An impure person draws water with an impure vessel from flowing rainwater. What is the status of the flowing water?
Halacha 5 states that even if an impure person drew water with an impure container from a flowing rain stream, the stream does not become impure because it is on the earth and flowing.
Question 4
A woman eating terumah sneezes and saliva falls on terumah, and she is pleased. What is the result?
Halacha 7 states that if she sneezed and saliva fell on the terumah and she was pleased — the terumah becomes susceptible to impurity because of her pleasure.
Question 5
When a woman removes coal from an impure oven while eating terumah and is poked by a splinter causing bleeding, what determines whether the terumah is disqualified?
Halacha 7 states that if she contracted her hand immediately when poked, the blood did not touch the terumah. If she did not contract it immediately, the blood rendered the terumah impure.