Верю не верю

Children love to play in an interesting intellectual games. One such game is "I believe I do not believe." This puzzle will interest not only children but also adults. There is no need to think how to answer the question, because in front of you will not be questions, and specific statements.
The game consists of 50 levels. In each level is displayed on the screen one fact, after reading it, you need to guess it true or false. When you have decided on the answer, you need to press one of the buttons "believe" or "I do not believe." If you answer correctly, you will see a green mark, and if the answer is incorrect, you will see a red cross. And after going through all the levels, you can see the number of correct answers for the entire game.
Playing educational puzzles, you will be able to learn a lot of different fields of knowledge. This game will be interesting for children from 7 years.