what is full only one day in a whole year?

what is full only one day in a whole year? what is Full Circle? what is full only one day in a whole year?请问这个谜语谜底是什么? 帮忙解决几道英语谜语~THANK YOU!What three letters of the alphabet would scare off a burglar?What start with a T,ends a T,and is full of T What coat is put on only when it is wet?What shall be if I jump into the water? what is your full name ?翻译 What is full colo printing?-Yicklam Empty what is full,Fill what is empty!... A house full.A hole full.But never a bowl full.What is it? What is his work!He only need to work on one day.Guess what is his work? what is business?(English only..) why?you and she is bitch.yes no?Only yourself understand what's going on. what is going on what is on? is full What is the full English name of 汇丰银行? What is the full name of the United Kingdom? What is the full word of the family?怎么译? What is full of holes but still holds water