How long is the flight from the UK to Australia?

I've heard 13+ hours is that right?
If so what do you do in that time, go to sleep? read a book/magazine?
How do toilets on airplanes work? is there a hole in the bottom of the plain?? 0.o?
Update: i mean plane*
Update 2: I have been on a plane before but it was when i was a baby and twice when i was 3 years old altogether ive been on a plane 4 times but obviously i was young so i cant remember.
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