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

I'm not inferring anything. But while in the supermarket, a woman exclaimed to her friend nearby, "OH MY GOD, LOOK AT THE SIZE OF THESE CUCUMBERS!"

There's no goin back

I often wonder, how DO you get to Sesame Street?

Dear Plurk,

how often do you brush your teeth?

if you normally wear a size 6 ring, how uncomfortable would a 5.5 be?

Sherlock - Theme TuneI need help. Whenever I hear this theme, I feel like I've heard something similar before. But I can't think of what. Does anyone else get this feeling? What's it similar to?