If it was on the same day when the question was asked then the answer is: today
"today"
"today"
"today"
A date
T o d a y
"Today" (of course the answer only works when today is 15th March 2011).
If that was the date were currently, the answer would be "today".
The day after yesterday but the day before tomorrow which is today.
Today
today
To write 24 January 2014 in 5 letters without using numbers kindly write 24.1.14.
Unless that happens to be the date on which you are asking the question you can say 'today' otherwise you cannot