Move an object on another

Questions & Answers
1

Hello,
I wish I had help or guidance to perform an action.
I have in my scene 5 cubes and a sphere, I wish that when I click on a cube at random that the sphere is positioned exactly the same place as the selected cube.
Thank you in advance for your help.

2

You can use Physics.Raycast for this:

RaycastHit hit = new RaycastHit();
public GameObject sphere;

void Update() {
    if (Input.GetMouseButtonDown(0)) {
        if (Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition),out hit)) {
            if (hit.transform.gameObject.name == "Cube") {
                sphere.transform.position = hit.transform.position;
            }
        }
    }
}
3

Hello and welcome to unity community.
Firstly, Check out the unity official tutorials here :

You should get yourself familiar with C#, as it is the programming language used in Unity (although there are 2 others as aswell)

Secondly, to answer your question at hand. You just need to use the position property of the transform.

using UnityEngine;
 using System.Collections;
 
 public class CubesAndStuff: MonoBehaviour 
 {
     Ray ray;
     RaycastHit hit;
     Transform object;
     //Put this on your sphere
     void Update()
     {
         //Be sure to have a main camera that is tagged "MainCamera" for this example to work.
         ray = Camera.main.ScreenPointToRay(Input.mousePosition);
         if(Physics.Raycast(ray, out hit))
         {
             if(Input.GetMouseButtonDown(0))
             {
               transform.position = hit.transform.position;
             }
         }
     }
 }