Yes, unless otherwise noted.
There are symbols on each description of the sculptures or paintings that indicate wether or not they can be photographed
Yes, they are allowed, most you can take pictures of, just not up close and never with flash.
Pull out your cell phone and start taking pictures, there about 20 guards there, if they say stop, then don't. There is, also a realy nice lady that will greet you, and you can ask her.
Yes, but with some exceptions that are indicated with a small symbol.
Yes, except for certain exhibits. Some items are not allowed to be photographed and are labeled with a small icon indicating that you can't take a picture.
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