yes they do. buy him/her a wheel if you haven't already and stimulate him/her to use it!
Yes you can, and some hamsters need to live in pairs. However, syrian hamsters are very territorial and need to live alone.
Hamsters need shelter so they have a place to eat, sleep, and do what is necessary to survive.
1 hour.
What a liar that guy. You need about 30-60 mins.
yes
Yes.
No, they do not.
no
Hamsters need baths atleast once a week or up to two times a week
Hamsters will need to be taken to a vet, and he or she will give you a prescription if needed or, they will tell you what will need to happen for your hamster to live a happy life.
No, hamsters are actually pretty territorial. They often fight with mates.
By 'work out' I presume you mean'take regular excercise (in a gymnasium)'. Cavemen's lifestyle was irregular, governed by the seasons and hunting conditions. They had no need of excercise, life was tough.