BRAIN TEASERS FOR DUMMIES

Q: I weaken all Gentlemen for hours each day. I tell you about Unusual visions when you are away. I take you by night, by working day get you back again. None endure to have me, but do from my deficiency. What am I?Concern: Renovate the term "CAT" in the phrase "Canine" by switching a single letter at any given time, with Each individual action lea