doctor-which soap do u use?
sardar-gopal soap,gopal brush,gopal paste,gopal comb
doctor-is gopal a international company??
sardar-no,gopal is my room mate...

Teacher: Tumhare papa 500 rupees loan lete hai. 10% interest ke hisab se woh 1 saal baad loan vapis karte hai. Batao kitne paise vapis karenge?

son: Kuch bhi nahi.

Teacher: Tum maths nahi jante.

son: Main toh maths janta hoon, par aap mere papa ko nahi jante.

The doctor to the patient: 'You are very sick'
The patient to the doctor: 'Can I get a second opinion?'
The doctor again: 'Yes, you are very ugly too...'
I use this joke for retelling in reported speech.