Four quick jokes

that might take some time (and/or Googling) to get:

Why is o the noisiest vowel? All the others are in audible.

“Have you any two-watt bulbs?” “For what?” “That’ll do.

I’ll take two.”

Who is this Rorschach guy? And why does he

paint so many pictures of my parents fighting?

What do you get when you cross a joke with a rhetorical question?