HELLO! :D
Jayna here! (:

Sorry to make Chee Yann wait so long, kept on procrastinating. :P

Anyway I was wondering what to say then I decided to test chee yann on this really stupid joke-riddle that I half understand, half don't understand. -.-

Ok, there are 3 workers.
I'm the manager.
The 3 workers stay in my hotel and I charge them all $30, meaning each of them would have to pay $10 each. Then, I realise that there is actually a $5 discount. But then, thinking about it, it would be very hard to divide the $5 I would have to return to them equally among the 3 workers. So, I pass $5 to the bell boy, and ask him to divide among the 3 of them. Thinking it'd be really hard to divide, the bell boy takes $2 for himself as gives the remaining $3 to the 3 workers, $1 per person.
NOW, if the total cost they had to pay at first was $10, then after minusing the $1 (from discount), the total price 3 of them had to pay was $9 x 3=$27. After adding the $2 taken by bell boy, it'd add up to $29.
WHERE DID THAT LAST $1 GO?

All you smart people can go answer I'll just stare blur-ly. :D