Can you help me to think or suggest on how to invent one new product that have many uses?

Answer 1

i cant help you in that, its already been invented, its called the pen knife ! one item plenty of usage ! Cheers

Answer 2

A robotic Doctor/Nurse. Throw a robot on a Segway scooter, put a diagnostic computer on it that can speak and do chemical analysis, and for its mouth put in a bill slot to feed it like a vending machine. For good measure, equip it with GPS for outdoor travel, and a Roomba vacum navigation device for movement indoors. It could also have an ATM positioned on its backside equipped to dispense money or wire it through infrared means. These previous features should ensure great versatility/many uses. Good luck.