I'm sorry if this is so off-topic but i really want to share it with u guys, besides i couldn't solve it so i need ur help, i heard it in arabic so my translation may not be so good,YOU HAVE BEEN WARNED.

- three kids bought a ball for 30 $ ,each one of them paid 10$. the seller found out that the ball actually worth 25 so each one of the kids took one dollar and they decided to give the seller the other two. the question is if each one of the kids took one dollar back that means each kid paid 9 $ a total of 27 $ plus the 2$ the gave to the seller thats 29$ where is the remaining dollar???

please don't close this thread lets just have fun

and if u guys want lets keep this thread to share puzzles and jokes