Just something I came across on Facebook:
This year we'll experience 4 unusual dates....1/1/11, 1/11/11, 11/1/11, 11/11/11......now go figure this out....take the last 2 digits of the year you were born plus the age you WILL BE this year it will equal......111....or 11 if you were born 2000 or after that, I tried it and it works!
