Poor little Johnny had been blind from birth. One night, before he went to bed, his mother told him that the next day was very special. She told him that if he prayed very hard to god, he'd be able to see when he woke up. Johnny was very excited and prayed very hard for two hours.
The next morning, Johnny's mum came into his room. She smiled at her son and said. "Wake up Johnny. Open your eyes and all of your prayers will be answered!" Johnny opened his eyes and started screaming. "Mother! mother! I still can't see!"
"Yeah I know" said his mother. "April Fool!"