No, any one can start a religion however certain criterion have to be observed for it to be recognised as a religion by the Australian Government
I don't know about all countries, but it certainly is not illegal in the United States.
Rastafari is a religion that promotes the smoking of ganja, which is probably illegal in Australia. (People who practice Rastafari don't like the word "Rastafarianism" because the religion opposes "isms" in general).
No, it is not illegal to change a lightbulb in Australia.
No. Valium is not illegal in Australia. It may be purchased only with a prescription, however.
No. gay sex is not illegal in any state in Australia.
I don't understand your question but Australia has not chosen a national religion.
Probably the religion of the aborigines.
Australia has Christianity as its main religion.
It IS illegal to sell a used mattress in Australia now, due to Health Regulations
Yes it is in fact illegal to urinate in public anywhere in Australia.
how many Indian r illegal in Australia well there is 35% lol no joke
No, it is not legal to create a contract for an illegal purpose.