Question

in your kitchen a pair of tong is a following type of simple machine 1) pulley 2) wheel 3) lever 4) fulcrum

Answer 1

Pair of tong is a type of lever.

Answer 2

Simple Machines are the devices which make our work easier and faster .

Example :
Pair of Tongs, pulleys, Pair of scissors etc.

A Pair of tongs are lever with type 3 simple machine :

These levers have the effort between the load and the fulcrum.
The load is smaller than the effort but moves farther.