Q: Why can’t a woman ask her brother for help?
A: Because he can’t be a brother and assist her too!

Explanation: Of course a woman can ask her brother for help!  Just not in this joke.

The words in this joke are rather well known.  To assist means to help. You already know brother, sister, and woman.  Regarding relationships, you can be either a brother or a sister, but not both.

This joke is funny because, if you listen closely, “a sister” and “assist her” sound the same. Please help your brothers and sisters.

Here is a story about someone who decided to help his community by using books and a donkey.