Amazing thing but true , Notepad knew about 9/11/2001 !
The flight number which hit the WTC in New York was Q33N !
See it yourself :
1. Open Notepad
2. Type : Q33N
3. Now, go to Format menu
4. Choose Font.
5. Now, change the size to '72'
6. Now, change the font to 'Wingdings'
7. See what is displayed !