Hi..Could you plz tell me how many questions shall I attend to clear the cutoff of each section?

Plzz atleast max and min range

For SBI PO prelim overall cut off will be around 50 and sectional would be around 5-8. So at least attempt 10 questions in each section.

english cut off - 5.25 to 6.75

aptitude cut off - 7.0 to 9.0

reasoning cut off - 7.0 to 8.25

overall cut off for general category - 48 to 52

How many questions you should attempt depends upon your accuracy and the factors on which cutoff is decided. @Sayali Kale said well. Also check this for prelims cutoff https://cracku.in/blog/sbi-po-prelims-expected-cutoff-for-2017/