An old classic
As I was going to St. Ives / I met a man with seven wives.
Every wife had seven sacks / every sack had seven cats / every cat had seven kits.
Kits, cats, sacks and wives / How many were going to St. Ives?
1) The man, his wives, etc., are also going to St. Ives.
2) ONLY count the wives, sacks, cats and kits. Do not include the speaker or the polygamous husband.