The app contains a collection of interesting logical and mathematical problems.
Their decision will make you not only pass the time, but also how to stretch your gyrus.
Most of the tasks do not require any special knowledge beyond them able to overcome any smart person who went to school and little remembered what it was taught there :)).
In this collection are given the task of varying difficulty: some can be solved on the go, and on the other a good smash his head.
You can check the ingenuity of your friends and relatives, asking them their favorite puzzles. Let them try to solve)))

With each update application added new challenges in the form of an additional chapter. Older results are stored.
Today released already four chapters (it is about 200 tasks).

According to your numerous requests I have added to the application prompts for most tasks. HOORAY!!!

Many even asked for access to the answers, but I believe that by doing so I will surely show users a disservice. And the man who nearly tripped over a challenge, once podsmotrit answer. He, of course, do not get so much pleasure, if he had solved the problem.

So use the tips, they basically just a hint of a solution, and think you will still be yourself!
Decide on health, constant training - the key to success!
Have a good time!)))