If it really counts as "hitting", then it probably constitutes assault and battery, which is illegal almost everywhere.Spanking a child is legal in some places and not in others.
Allowed**
your mother
No, that would be assault.
No, it was legally banned in 1947.
In most places, physical punishment by parents is legal as long as it does not amount to abuse or cause serious harm. However, the use of physical discipline is not recommended as there are more effective and non-violent ways to discipline a child.
Yes - good and hard
It is illegal to slap someone in any place.
Without your consent, then it is assault. It is legal if you give consent.
No, he did have some legal trouble in February ,2009, but the charges were dropped.
To slap your mother is disrespectful and if you decide to do so I would advise you to duck because she may well slap you back. Being mature and talking things out together (good communication skills) is far less painful and uncontrolled anger will get you nowhere.
It's called 'Slap Bet'. It aired originally on November 20, 2006. You should be able to watch it on watchxonline.com (the link is on the bottom of this page)