Where should you placed the object to get a real inverted and Diminished image

Where should you placed the object to get a real inverted and Same size image.

Where should you place an object in front of a convex lens to have a thrice magnified, virtual, erect image? Focal length of the lens is 30 cm.

A convex lens has focal length 5m. At what distance should an object be placed so as to have a real image magnified twice?

An object placed in front of the mirror is moved from infinity to the focus of the mirror. The image formed is found to be real, inverted, diminised, or of same size, or magnified with respect to object. The mirror is