Surma while fasting

Q: Does it invalidate or nullify the fast if you apply surma and sleep during the day? My father has been arguing that while fasting if you sleep during the day with the surma, it nullifies the fast as per some mufti he heard. kindly guide me.

Participating in the funeral rights of a non-Muslim

Q: My wife is a converted Muslim and her father has recently died who was a Hindu. There are some rituals that only my wife can perform as she is the only child. I am not sure wether to allow her to perform that rituals which may involve a Puja as well. Can you please guide me what happen if she still perform such rituals despite knowing that I am not happy if she performs those.

Viewing an animal before purchase

Q: A local supplier of sheep uses 1 of 2 methods in purchasing his sheep from a distant farmer:

1. The weight and description is given to him by the farmer telephonically.

2. He views digital images of the actual sheep as sent to him by the farmer.

Will the transaction of sale be correct in both situations considering he has not seen the actual animal?