heres a riddle you probably wont get,
3 guys walk into a hotel and rent a room, the clerk says its $30, so they pay and go up. then the manager walks in and tells the clerk that the roo was only $25. the clerks goes to return the $5, but doesnt know how o split it 3 ways, so he keeps $2 and gives $1 to each person.
each person spent $9, 9x3 is 27, and the clerk has $2, 27+2=$29, wheres the other dollar?