1. This would be figurative language because it is a play on words.
2. This is also figurative language because they are hinting at your mouth. and they are calling your mouth a trap.
3. That is literal because they actually want the door to be closed.
4. This is also literal because they actually mean that math is there worst subject.
5. This is also literal because they are making a direct comparison to their aunt.
6. This is figurative because the sun cannot smile on you! haha