If it is a male, it is probably suffering from wet dreams. You might check for dampness around its hind legs when it awakes to confirm that diagnosis--or just let it be.
there is no such thing but if you mean a roborovski hamster yes its a dwarf
Well, this is how you say dwarf hamster in japanese- ドワーフハムスター
If it's a dwarf hamster, it's just boxing. The species tends to do that. It's just their way of playing. If it's not a dwarf hamster then that's strange behavior but i don't think it has rabies
It likely means that maybe your male hamster is not a male,its a female and she is pregnant
that some thing is wrong , probably with its kidney's.
That depends on what you mean by White Dwarf Hamster. You may be referring to a Winter White Dwarf Hamster which tend to be a light gray, or a Albino Dwarf Hamster that is completely white and maybe red eyes. Albino Hamsters may be hard to find, but you can call nearby pet stores and ask if they have the hamster you are looking for. (Stores like Pj's Pets, PetSmart, Local Pet Breeds, etc)
Just getting more info about you, or licking salt from your skin.
It means it is getting used to it new home.
only bad things. You will kill it if you squeeze it too hard or too often. Be nice to it otherwise give it to someone who cares.
Your hamster is probably a russian winter white dwarf, they change color when it's cold.
by normal, if you mean sirian hamsters then the main difference is that Chinese hamsters belong to the dwarf hamster species, which are considerably smaller and arent as friendly (believe me, i know, i own two!).
Russian Dwarf Hamster is not mean at all. It can bite though at first. When you first get it do not pick it up because it is not use to the environment yet wait til it gets to its cage then start patting it and holding it. After that, it will be really tame and hardly bite. The worst it does is nibble. The ones that are nice are the Fancy Dwarf Hamster and the Russian Dwarf Hamster.