Riddle Me This

Ok, for Friday I thought I would post a few riddles to help me wind down from the week.

After a very long day of work, a man goes to bed. Before he went to bed he wound his clock and set the alarm for noon the next day. If he went to sleep at 10 pm, and fell asleep immediately, how many hours of sleep did he get?

What occurs once in every minute, twice in every moment, yet never in a thousand years?

A man without eyes saw plums on a tree. He neither took plums, nor left plums, how can this be?

A man pushes his car to a hotel and loses his fortune. What happened?

A woman and her husband are together. The woman shoots him, then drowns him, then hangs him. Five minutes later they walk out the front door to grab dinner and catch a play. Can you explain this?

An island is in the middle of a lake. The lake is old and in a remote part of the country. Bridges to the island, there have been none. There is a tractor on this island. This tractor provides hay rides around the island. The tractor was not transported to the lake by plane or boat, so how did it get there?

And if you have a good riddle to add, please share.