A blonde decided to decorate her bedroom. She wasnt sure how many rolls of wallpaper she would need but he knew that her friend (also a blonde) next door had recently done the same job and the two rooms were identical in size.

Buffy, she said, How many rolls of wallpaper did you buy for your bedroom?

Ten, said Buffy.

So the blonde bought the ten rolls of paper and did the job, but had 2 rolls left over.

Buffy, she said. I bought ten rolls of wallpaper for the bedroom, but Ive got 2 left over!

Yes, said Buffy. So did I.