An invisible man is here to see you
Nurse: Doctor, there is an invisible man in your waiting room.

Doctor: Tell him I can't see him now. Next.

3 Questions
A man walked into a lawyer's office and inquired about the lawyer's rates.
"$50.00 for three questions", replied the lawyer.

"Isn't that awfully steep?" asked the man.

"Yes," the lawyer replied, "and what was your third question?"