A brunette, red-head and blonde each went to a job interview.
The manager interviewed each of them, asking them your typical interview-type questions, like "do you have any previous work experience?" and so forth.
Then the manager asked each of them one final question; "How many 'd's' are there in 'Indiana Jones'?"
"One" the brunette replied.
"One" the red head replied.
"Em, can I borrow a calculator ?" the blonde asked. The manager gave her a calculator and she worked out her answer. She later returned to the manager and replied triumphantly "36."
Confused, the manager asked her how did she get 36, and the blonde replied; "du-du-du duu, du-du duuu!"