One is raising the ground to make a Koreh low enough. What is the WIDTH that must be raised?

1.   ?    טפח
2.   ?    4 טפחs.
3.   ?    4 Amos.
4.   ?    The whole width.
5.   ?    Machlokes A&B.

Do we worry that this embankment may wear down?

1.   ?    Yes.
2.   ?    No.
3.   ?    Safek.
4.   ?    Machlokes A&B.
5.   ?    Machlokes A&C.

Let us say we are digging to make it high enough what is the width of the trench?

1.   ?    We don't do that it is dangerous.
2.   ?    טפח
3.   ?    4 טפחs.
4.   ?    4 Amos.
5.   ?    Machlokes C&D.

לחי של ארבע אמות in a seve wide Mavuy ________ .

1.   ?    is enough.
2.   ?    needs another לחי .
3.   ?    is more than enough.
4.   ?    must be shorter than the other walls
5.   ?    must be taller than the other walls.

Even in a Mavoy eight Amos wide no other Lechi is needed.

1.   ?    True.
2.   ?    False.
3.   ?    Safek.
4.   ?    Teiku.
5.   ?    Machlokes A&B.

In 5 why don't we worry it is exactly half i.e. we do have a space of 4 Amos?

1.   ?    That is why some require a Koreh.
2.   ?    It is a Safek de'Rabbanan
3.   ?    מהלכה למשה מסיני
4.   ?    Machlokes A&B.
5.   ?    Machlokes A&C.