Three men go to a hotel room. The room is $30 so they pay $10 each. As they go up, the boss thinks he overcharged them, so he decides to give them $5 back. The guy who is sent up to return the money to them thinks he can’t distribute $5 to three men, so he decides to give them $1 and he keeps $2 for himself. So that means the men actually paid $9 each (as $1 was cashed back to them) or $27 altogether. If we add up $2 kept by the guy who split up the money equals $29. Where is the missing dollar?