Kailash remembers that his brother Deepak`s birthday falls after 20th May but before 28th May, while Geeta remembers that Deepak`s birthday falls before 22nd May but after 12th May. On what date Deepak`s birthday falls ?

Answer: B. 21st may
According to Kailash, Deepak`s birthday falls on onev of the day among 21st, 22nd, 23rd, 24th, 25th, 26th, and 27th May. According to Geeta, Deepak`s birthday falls on one of the days among 13th, 14th, 15th, 16th, 17th, 18th, 19th, 20th, and 21st May. The day common to both the groups is 21st May. .'. Deepak`s birthday falls in 21st May.