Are these correct, if not then correct me!

1 is incorrect, A is the whole oval. B doesn't matter.

2 is correct

3 is incorrect, the shared part belongs to A or B as well

4 is correct

5 is correct

6 is correct

7 is correct

8 is correct (compare to 3, it should be the inverse!)

9 is incorrect, only B with A excluded must be shaded

10 is incorrect, the whole of A must be included

Explanation:

If you point to any place in the picture, you must be able to evaluate the expression to "TRUE". Take number 10, if you point to the shared area of A and B, you can say "A or !B" is TRUE because you are inside A, so the expression is TRUE or FALSE which is TRUE.

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.