Logic Riddles

Question: You were at a carnival. You had four tickets and one ride was four tickets. Once you were done, you didn't buy anymore tickets and you had one ticket left. How is that possible?

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

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

Question: If Washington went to Washington,and Washington washed the clothes how many w's are there in all?

Question: It makes everyone blind. You can't see it and it will always come back for you.