5 week old mice should not be eating milk. They should be eating adult ouse/rat food by the time they are 3 weeks old.
A five week old puupy should not even be eating solid food yet and should not be away from its mother. A puppy should start eating solid foods when it is at least 6 weeks old or older. You should start out with soft food but soon switch to hard food after that because it is better for them.
as much as you can
The baby is teething you should probably get him or her oral teething gel.
zero
about 5 miles a week and a half of a mile a day
13 year old should get 35 to 40 dollars a week or month
A one week old Rottweiler, should weigh approximately 1-2lbs, if feeding well.
I have no clue. Maybe you should take it to the vet.
That depends. What are you feeding him/her? If you are giving him puppy food he should be eating. If he isn't, take him to the vet.
26lb
It depends on his metabolism and on his health condition.