If two cats before a cat ,and two cats are behind a cat ,and a cat is in the middle
If two cats are before a cat,and two cats are behind a cat,and a cat is in the middle ,how many catsIf two cats are before a cat,and two cats are behind a cat,and a cat is in the middle ,how many cats are there all?书上说是脑筋急转弯,用英语该怎么回答?