If a person is already in jail, there is no child support owed.
Yes, but it depends on the state/county.
In the USA, the answer is NO. In fact it will grow.
You will not receive child support if the other parent is in jail because there is no income to garnish. Their back child support will add up and you can file contempt charges for nonpayment of child support.
Yes, In Montana a person can go to jail for nonpayment of child support. In most cases it is when the other person makes it a big deal to the state that they will issue a warrant.
A "purge" means that if you pay a certain (court ordered) amount of money towards your back child support, you will not be jailed or, if in jail, you will be released.
Yes. Being in jail does not get you out of paying child support. You will owe and pay when you get out.
A judge in Florid can award you child support. Getting child support is quite difficult when the person required to pay it has no income.
They all will if you show you will not pay it back or is even trying.
Yes. To do otherwise would put them in contempt of court and they could be fined heavily and/or arrested and put in jail. But If you feel as if you don't owe the amount of back child support then you need to do a modification you can get all the info you need to do that from this site http://flchildsupportmodification.com/
Not your car nessecarily, but you can go to jail for not paying child support. I don't think you need a car in jail.