Gemini is ruled by the planet Mercury. It is symbolised by twins that explains the duality in character and doing. You areintelligent, brilliant with sharp brain, able to retain things for long time, can take decisions at the spur of the moment.The Gemini-born are versatile and have an amazing grasp of the subject they choose, although it may not interest them for long. You possess very less stability in work, as the mind is always changeable. The moon in this sign is not at all good the mind is practical. It is favourable for a businessman, accountant, research works, etc.