If you can read this clock, you are without a doubt a geek. Each hour is marked by a simple math problem. Solve it and solve the riddle of time. Matte black powder coated metal. Requires 1 AA battery (not included). 11-1/2″ Diameter.
DCI Pop Quiz Wall Clock
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Discovered on Nov 17, 2012, 6:00 am EST
Discovered by Kayla Matthews