Logic Riddles

Question: Why is the man standing in the sink?

Question: The mouse that can walk is Mickey. But the duck that can walk is who?

Question: A man leaves his cabin and travels 100 meter north, 100 meters west, and 100 meters south just to arrive back at his home. He sees a bird. What kind of bird is it?

Question: Two people race for the title of leader. Bob won the race who is the new leader.

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?