I don't have any work to do

Since I don't have any work to do, I am going to just ask you some "MATHEMATICS" questions. You may ask, "Why?". There is a proverb:

"Mathematics is everywhere."    

            - Jawaharlal Nehru(OOPS!)

So, let us solve. Before that, let us see my young-age photos with my friends.

  Well, don't talk about me and come to the point. This is a mathematics post. Now, find the perimeter of Sharath's face(1st que). Next, find the speed of sound in Photo 1(2nd que). If you have good eyesight, you can see a switchboard in behiiiiiiiiiiind of us in Photo 2. Find the area+perimeter of the switchboard(3rd question). Bye. If you have anger, go and call 108 and eat Paracetamol. If you don't know what is Paracetamol, look at the given image below.