Question

How many days are in a month

Answer 1

28, 30, or 31
Leap year February has 29 instead of 28.
January, march, may, July, august, October, and December have 31 days.
April, June, September, and November have 30 days.

Answer 2

It could be 30 to 31 but February has 28 expected from a leap year with 29 days