If people from Poland are called Poles, why aren't people from Holland called Holes?

In my house there's this light switch that doesn't do anything. Every so often, I would flick it on and off just to check. Yesterday, I got a call from a woman in Germany. She said 'cut it out'

What do little birdies see when they get knocked unconscious?

I had amnesia once or twice.

Last year I went fishing with Salvador Dali. He was using a dotted line. He caught every other fish.

I need one of those baby monitors from my subconscious to my consciousness so I can know what the hell I'm really thinking about.

I got food poisoning today. I don't know when I'll use it.