Logic Riddles

Question: what does 1+1=.

Question: My first is third, like the sound of the sea. My second is the center of you, not me. My third is the end of him, not you. My fourth starts a picture, not a view. My fifth is in bean, though not in been, My sixth and seventh start seldom seen. Sunrise and sunset, warmth and cold, Put these together and a sign will unfold.

Question: Everything is what it is not, but everything is not what it is. So what is everything?

Question: Ive said 'I am 11 years old' however, I'm 21 years old. How is that possible?

Question: What glass protects you from the sun but does not lets you see near?