…I should have known that!: Classic Family Fun

How many sides does a screw nut have? Which president is on the five-dollar bill? Is a shark a fish? What is the Oscar statuette holding in its hands?

...I should have known that!. is an addictively entertaining trivia game with over 400 questions about things that you should know. In contrast to traditional trivia formats, you don't receive points for answering questions correctly.

Instead, points are subtracted for every incorrect answer! Be prepared to see how much you know without Google and Wikipedia at your fingertips! This fast-paced and hilarious game guarantees nonstop brain freezes, laughs, and embarrassing answers! One thing is for sure: it will only be a matter of time before you hear yourself say... Doh!... I should have known that!

—description from the publisher