Head to the lowest floor of the apartment building, preferably a basement if possible. Stay away from windows.
It can be relatively safe, but some other room or hallway without exterior walls would probably be safer. Also, if your apartment is on an upper floor you may want to go to one of the lower floors if a tornado threatens.
No, hiding in a dumpster during a tornado would NOT be safe, because even a low-grade tornado could easily toss or crush a dumpster.
A closet can provide good shelter during a tornado.
No. It is not safe to be outdoors in a tornado, and outdoor elevators are often made largely of glass, which is dangerous to be near during a tornado.
Yes. A concrete basement is one of the safest places to be during a tornado.
If it is in a sturdy house or building, yes. In fact it is best to be indoors and preferably underground during a tornado.
yes
It is not.Go to your basement.
It depends on the strength of the tornado, but it is not as safe as a fully underground basement. In most cases it would be safe, especially if you can get into a room that is in the underground portion of it.
If it is underground, probably
Good Shelter
No, definitely not so great things to do during tornado.