How many paragraphs for a speech not including intro or conclusion
Ènough should be fine.
P2: 1st reason why you are for or against the motion
P3: 2nd reason why you are for or against the motion
There is no harm in doing a 3rd reason (another paragraph) but this is the recommended speech layout.
2-3 maybe 4 even
Depends what topic your doing . As Syran said there's no harm in doing more than 3
There is a really helpful power point on aoifesnotes.