Want to challenge the intellectual quiz? Time of commuting and attending school, please try to solve the mystery, such as when you sleep.
Please solve the mystery mountain was published in a letter from Emon mystery mystery mountain stream Iemoto the "mystery". There are many types of "mystery". The problem of locating an answer math problem and Chinese characters problem, in the Web, are also included riddle. There is also a hint that can be seen when you flick or tap the screen.