Q1: What will be the day of the week 15^th August, 2010?

ANS:A - Sunday

15^th August, 2010 = (2009 years + Period 1.1.2010 to 15.8.2010) Odd days in 1600 years = 0 Odd days in 400 years = 0 9 years = (2 leap years + 7 ordinary years) = (2 x 2 + 7 x 1) = 11 odd days  4 odd days.

Jan. Feb. March April May June July Aug. (31 + 28 + 31 + 30 + 31 + 30 + 31 + 15) = 227 days

 227 days = (32 weeks + 3 days)  3 odd days. Total number of odd days = (0 + 0 + 4 + 3) = 7  0 odd days. Given day is Sunday.