I have evidence that anti-virus software manufacturers are releasing computer viruses in an effort to keep themselves in business. However, I cannot share that evidence with the general public without getting into serious trouble. Therefore, my son, if you would like me to share the evidence, you will have to answer a series of riddles and mental puzzles. Consider this a quest...a quest for RIGHTEOUSNESS! FIRST RIDDLE: I have oceans without water, I have a sky without air, I have mountains without land. What am I?