2+2

_Teacher: How much is 2+2_
_Student: 9.50_
_Teacher: How on the earth is that possible?_
_Student: 2+2 = 4 + Vat + Service tax + Higher Education Cess  + Swacch Bharat Cess + Krishi Kalyan cess; it comes to 9.50  Mam!._
_Teacher fainted!!_