The local sheriff in a small suburban town was looking for a deputy. He posted ads in the paper, and sure enough, Lisa, a wonderful-looking blonde, went in to try out for the job. She wasn't the sharpest nail in the bucket, but seeing as she had a natural charisma about her, the sheriff gave her an interview.
"Okay," the sheriff drawled, "Lisa, what is 1 and 1?"
"11!" she enthusiastically replied.
The sheriff thought to himself, "That's not what I meant, but she's right in a way..."
"Okay, Lisa. What two days of the week start with the letter 'T'?"
"Shucks, that's easy," the blonde replied. "Today and tomorrow!"
The sheriff was again surprised that Lisa supplied a correct answer he had never thought of himself.
He thought of his next question carefully to make sure there could be no equivocation about the answer:
"Now Lisa, listen carefully: Who killed Abraham Lincoln?"
Lisa looked a little surprised, thought really hard for a minute, and finally admitted, "I don't know."
"Well, why don't you go home and work on that one for a while," the sheriff replied with satisfaction.
So, Lisa wandered over to the salon where her pals were waiting to hear the results of the interview.
"How'd it go?" they all asked.
Lisa was ecstatic. "It went great! First day on the job and I'm already working on a murder case!"