Welcome to the beginning level of the logic problems. The problems presented here will probably be quite daunting for those who never see these questions before, but actually, you already face all sorts of logic problems in your every day life and solve them in your head. These questions don't require you to memorize math equations but rather a simple thinking technique that you've used everyday to discriminate the right from the wrong. It will probably be easier if you are actually into it and search carefully for each potential clues. Good luck!