When inquiring if a business is open it is correct to ask if they are open today or "do you open today". Either way conveys the question appropriately to find out the hours of operation for a given day.
Yes they are
no
What time does Sears open today
Is shop rite open today on Easter
What time does Sears open today
main matka open today
yes elementry schools open today but not all of them
Yes the McDonald in Kelmsott will be open today for 24 hours.
today kalyan open date26-05-2012
BY 5 pm today commodity market will open
Kolh's is open Monday-Friday 6 am- 10pm and on saturday-sunday 6am-9pm