The Twist Alarm Clock from D-Forme makes you think when you wake up. It uses two displays along with two rotatable sections to give you a math problem to solve, thereby truly waking you up and making you think.

The alarm won’t shut off until you solve the math problem. For example 2 + 5 = 7. The idea is that you aren’t really awake unless your brain is functioning. The Twist Alarm clock is only available in Japan at the moment, where they are excellent in math in the morning, for just $30.

[Techfresh]