Or are you at
the end of your wits as well?
Everyone is after the same thing that got Mac's sister killed, and Mac will be tested to
the ends of her wits.
I was at
the end of my wits with my term paper.
A good friend is being harassed by his neighbor, and is at
the end of his wits trying to get some recourse.
In fact, some of the questions will push to
the end of your wits and make you work out all the possible answers that you can come up with.