This saying, usually phrased as: When you open a book, you open a door, means that reading introduces you to new ideas; the more (and more widely) you read, the more knowledge you'll have. And it's...
No, since microwave ovens have a safety cut-out that stops the machine whenever the door is opened whilst in use. If you tried doing this, the oven would just switch off until the door was closed...
It might be very simple. You have to check cigarette lighter fuse in fuse box under steering wheel. It's connected with back door lock. If if happens again when you change fuse you might have some...