Bala Singh

Bala Singh had his 4th child. He fills the data in the birth-certificate:

Mother: Sikh.

Father: Sikh.

Baby: Chinese.

'How come you're writing 'Chinese' when both parents are Sikh?', asks the doctor.

Bala Singh replies, 'I have read in a newspaper, that every 4th person born on the earth now is Chinese.'