The Odd Paragraph
This one is clever. You have to look closely at the following paragraph. You should actually not read it, you should have someone else read it to you, to get the full experience. But you can read it, if you have to.
Here it is.
"This paragraph is odd. What is its oddity? You may not find it at first, but this paragraph is not normal. What is wrong? It's just a small thing, but an oddity that stands out if you find it, what is it? You must know your days will not go on until you find out what is odd. You will pull your hair out. Your insomnia will push you until your poor brain finally short circuits trying to find an oddity in this paragraph. Good luck."
So what it is?
Remember, you have to examine the paragraph really well.