This Christmas night, Santa did not expect that would be locked up in a trap. He, as usual, made his way through the chimney in one of the houses, small presents to put under the Christmas tree. But, when I had to go back, he saw that the chimney someone has locked all the doors and windows locked. Peering Santa realized that he was in an unusual house, there are all kinds of riddles and puzzles. They need to be addressed.