yes they are pretty good climbers
No
Why not? They have legs, right?
because red tree mice climb red trees and heather mice climb heathers underwear.
Yes mine dose
yes...the little abstards can eat it too.
yes
Mice only climb walls if there is something to grip onto. They can't climb on walls in a house, unless the paint has some sort of grip to it. They can't climb glass, either. But when I got a mouse, there was a thin-grated air vent in the cage, and she hung onto that. =3
Usually wire ones as they can climb on them.
Yes and so do mice and other vermin
probably not, but if they were a bit like apes, then yes they could.
Mice can get anywhere they want to go, they have no spine so can squeeze anywhere. climb anything, up pipes, so the answer is Yes.
They might try, unless the steps are to high. don't let them climb down the stairs though, because they could fall and break their bones. I also wouldn't leave them unsupervised near stairs, even if they're trained.