When is "obj instanceof Object" false in Java?

Question

Consider

 Object obj = ....;
 System.out.println(obj instanceof Object);

What should obj be so that the answer is false (Any other option other than null)

Answer 1

Is this a trick question?

Object obj = new Object() {{ System.out.println(false); System.exit(0); }};
System.out.println(obj instanceof Object);