how many hours should we sleep daily

I'm not good at math

It depends on how you are sleeping, sleeping is a technique, yogis do 'Yoga nidra' means 'have no sleep as sleep', and again there is something like "Shwana nidra" sleep like a dog, and specifically to your question minimum is 2 and 1/2 hours that's all, in fact everyone actually sleeps for only that much, the rest of time is spent in dreaming and REM sleep.
on an average person without any trick requires 6-7 hours.

8

6-8. But some lucky people only need 4-5.

I think its between 6-8 hours

an average of 6-7 hrs.

At least 8 I think

A good solid 8.

7

everyone is different there is no difinitive answer.

I thought you were smarter than this 😹