A blonde walks into the police

A blonde walks into a police department seeking a job. The officer begins with some basic questions:

Officer: “What’s 2+2?”
Blonde: “Ummmmm… 4!”
Officer: “What’s the square root of 100?”
Blonde: “Ummmm… 10!”
The officer continues, “Who killed Abraham Lincoln?”

Blonde: “Ummmm… I dunno.”

The officer suggests, “Well, you can go home and think about it. Come back tomorrow.”

Excited, the blonde calls a friend. She exclaims, “Not only did I get the job, I’m already working on a murder case!”