On the 1st day of christmas I learnt this in I.T
F1 is the help key

On the 2nd day of christmas I learnt this in I.T
F2 is re-name
Ans F1 is the help key

On the 11th day of christmas I learnt this in I.T
F11's full screen
F10 does nothing
9 does nothing
8 does nothing
7 does nothing
6 does nothing
F5 refreashes the screen
F4's the url
F3 finds files
F2 is re-name
And F1 is the help key

But on the 12th day of christmas I moved them all around
Now F12's the url
F11 finds files
F10 is re-name
F9 turns the lights off
8 fires rockets
7 makes you pregnant
6 still does nothing
F5 goes ping
F4 gives you aids
F3 cures aids
F2's disappeared
And F1 is the help key