Logic Riddles

Question: Which tool doesn't have a licence, but drives.

Question: How do you make seven even?

Question: 5 men go skydiving but when they jump out of the plane, only 4 men have a parachute. How do they all survive?

Question: What is AD before BC, exams before tests and last year is after last month?

Question: There are 4 light bulbs in a room and 4 switches corresponding to these four light bulbs (in a random order). You cannot see the light bulbs from where the switches are.

If you can only visit the room with the light bulbs once, how can you figure out which switch belongs to which light bulb?