J.K. Rowling jokes

What's white but not black, and red all over?

J. K. Rowling after attending the world premiere of the next Matrix movie.

How does the author of Harry Potter get around?

She walks, JK, Rowling!

How did Harry Potter get down the hill? Walking... J.K. Rowling.

How did Harry Potter get down the hill?

Running, JK rolling!