The missing dollar paradox
Three ladies go to a restaurant for a meal. The bill is $30. They each put $10 on the table, which the waiter collects and takes to the cashier.
The cashier tells the waiter that the bill should only have been $25 and returns $5 to the waiter in $1 coins.
On the way back to the table the waiter realizes that he cannot divide the coins equally between the three ladies.
As they didn’t know the total of the revised bill, he decides to put $2 in his own pocket and give each of the ladies $1.
Now that each lady has been given a dollar back, each of the ladies paid only $9.
3 times 9 = 27.
The waiter has $2 in his pocket.
Two plus 27 is $29. The ladies originally handed over $30. Where is the missing dollar?