For (1) I think the answer is:
C, for the reasons given by @Matti.
For (2) I think the answer is:
shapes 1&7, 4&8 and 5&6 are mirrors of each other along a central vertical axis. Of the two shapes left, 2 and 3, only 3 has a mirror (which is B), so each shape where possible has a mirror pair. I would have preferred that the X shape was its own mirror conjugate, but I guess not!
The first answer is the ...
last possible item, because this question contains 3 series. The square, the square with a circle, the rectangle, the rectangle with a circle, the triangle and the triangle with a circle. The segments of the circle are always mirrored on the lines of the triangle, square or rectangle.
I guess the second answer is the...
second possible item, because the item on the top left is divided in two parts, then the right segment is moved to the left and the left segment is moved to the right. The result is the right item at the bottom. The answer could be the second possible item, if this method also works for the top left item.