Mate in two moves...piece of cake, isn't that right?! Strangely enough, sometimes it's not that easy. Try to solve the following exercises, it's fun and useful at the same time. By working faithfully six hours a day you may eventually get to be a notorious GM and work ten hours a day:)
In all diagrams White should give mate in only two moves! How exactly? We had these positions in our chess club today and I couldn't stop laughing when I found the solution for the last two. The first ones are for warming up your brain:) Good luck!