Handbags   (The sad, the bad and the ugly. Non-productive stuff here.)

The one question I can answer without googling, Piccy., is the reason manhole covers are round is so they can't fall in the hole.

The rest I shall google....
Piano players = All of them
Toilet paper, a good few rolls? (Google doesn't answer)
Shrunk in a blender, ( I would duck) Google gives many answers.
Swimming is water/syrup = both the same.