Can you give me some examples of a four dimensional object you can find around your house? Thanks

If you are thinking about four spatial dimensions then you are out of luck. We live in a three dimensional world, and objects that we live with also exist in that world. Imagine that you live in a two dimensional world and you are asked to find a three dimensional object.

I would strongly recommend taht you read Flatland by Edwin A. Abbott. It is dated, written in 1884, but the author attempts to give the reader a sense of dimension by describing life in a 2-dimensional world.