The Twist Alarm Clock spotted in Japan is any one of the mentioned types of alarm clocks, which forces you to solve some math problems in the early morning. It requires you to solve simple math problems before the alarm will turn off.
There are two displays and an equal number of rotatable parts which will work in tandem to present you with a math problem each morning. These are simple math equations and if you don’t get the right answer, expect some loud ringing to really piss you off. The Twist Alarm clock is sized at 13.5×6.3×7cm, it’s only known available in Japan at the moment. It retails for $30 a pop.