Good Riddles

Question: This is this puzzle. This is is puzzle. This is how puzzle. This is to puzzle. This is keep puzzle. This is someone puzzle. This is busy puzzle. This is for puzzle. This is forty puzzle. This is seconds puzzle.

Question: I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty. What am i?

Question: A van with 15 seats carried only 14 passengers plus the driver. Each passenger entered the van alone and occupied only one seat. Without considering the heart of the driver, upon critical observation, there are 29 hearts beating in the van. How is this possible?

Question: A man in downtown runs a tea shop, one day his bulb goes out, so he gets on a ladder to replace it, however; he falls off and his priceless Chinese attire gets covered in tea, yet he is able to salvage it, how?

Question: What does Y W C A stand for?