Ruling on working as a delivery driver for companies like uber eats, deliveroo etc where the job role is to deliver food/drink which may be halal or haram

Question:

Is it permissible to work as a delivery driver for companies like uber eats, deliveroo etc where the job role is to deliver food/drink which may be halal or haram?

Ruling on Qurbani animal whose price is determined by weight after it has been slaughtered

Question:

If someone orders a sheep for Qurbani (sacrifice) where the price is determined by weight after it has been slaughtered, will the Qurbani be valid?

What is the ruling if a woman experiences bleeding before her expected cycle date?

Question:

If a woman experiences bleeding 12 days after her last haidh (menstrual period) its assumed that it is istihada (irregular bleeding) as its within the 15 days of purity. Now if that bleeding carries onto day 16, does it still remain istihada or will it become haidh as it has exceeded 15 days?