Danatan

very good, what date is today? Today is 24th Aug 2010
what date is yesterday? yesterday was 23 rd Aug 2010
What date is yesterday before yesterday? it was 22nd Aug 2010
Wajt date is before 22nd Aug 2010,it was 21st Aug 2010,

so funny, I think, the last question had better use in 1st Apr.
Because nobody know how to answer you! Ha Ha