probably a sort of big cage with a hamster wheel so it has room to run around.
No animals like being in cages.
no well you can get a tank it is best choice.:-)
cages
Yepp
You shouldn't buy round or oval cages for hamsters because they will not be very happy in one. Hamsters like the corners of square and rectangular cages. Corners give them a secure place to sit.
you shouldn't house 2 hamsters together unless they are Russian dwarfs even then they need separate sleeping and play wheels once hamsters reach sexual maturity they start to fight
no
None..
Wired cages, plus better ventilation.
Yes, hamsters are eurasian.
Hamsters don't generally smell if their cages are cleaned regularly and properly.
some hamsters are trained but if the latch on the cage is shut then no