Funny Short Jokes

With a frown wrinkling his forehead, little Johnny was working hard at his father’s desk scratching a pen along a page of his paper. His mother asked, “Are you writing a letter to your little girlfriend, Son?”
“Nope,” he grunted, “It’s a letter to myself.”
“Well,” she smiled, “What are you going to write about?”
“How should I know?” he squeaked, “I haven’t received it yet.”