Lifes imponderable questions

I was speaking to a customer yesterday who had booked a cruise with me a couple of weeks ago. He'd checked the price of the cruise yesterday out of curiosity, only to find the cabin grade he had booked had dropped in price by £50 per person. It wasn't a lot but it was annoying for him so I called the cruise line to see if they would honour the new price for him.
Surprise surprise they wouldn't!
My customer was a little disapointed but understood and wondered why a cruise always seemed to drop in price after he'd booked it.
"Oh well, just one of lifes imponderable questions I guess" , he said.

Well to cheer him and all you up on a Monday morning I thought I'd put together a list of other imponderable questions.......