1)If no accessibility modifier (public, protected and private) is given in a member declaration of a class, the member is only accessible for (classes in the same package) and (subclasses of the class)
-> true
That's false, unless there's some definition of *and* I'm not considering. It can't be *and*, because the set of subclasses includes those that are not within the package, which of course do not have access to default members of their supertypes. Can you describe further what you found ambiguous?