brother: That planet up there is Mars.
sister: Then that other one must be Pa's.
did your sister cut a hole in her new umbrella ?
she wanted to be able to tell when it stopped raining.
Why did you put a toad in your sister's bed ?
I couldn't find a spider.
you hear about the sister who wrote herself a letter and forgot
to sign it and when it arrived she didn't know who it was
you hear about the boy who saw a witch riding on a broomstick
? He said, 'what are you doing on that ?'
replied, 'my sister's got the vacuum cleaner.'
did your sister shoot the alarm clock ?
she felt like killing time.
Doctor, Doctor, my sister here keeps thinking she's invisible.
did your sister separate the thread from the needle ?
the needle had something in it's eye.
did your sister wear a wet shirt all day ?
the label said, 'Wash and Wear.'
did your sister spend two weeks in a revolving door ?
she was looking for the doorknob.