Came across some interesting words. How many of these do you know?

1. I have a friend – Narayan Venkatasubramanyan – who was once invited to create one of those Sunday New York Times crosswords. I am sure you know a lot of people who are very good at solving them. Maybe you are one of them. What is the English word for somebody who is adept at creating or solving crossword puzzles?

2. You have heard of being addicted to alcohol, to smoking and all that. Did you know that you can get addicted to tea? In fact there is an English word which means somebody who is addicted to drinking tea. Do you know what that word is?

3. You must have seen that when people sign their signature, usually they put in a flourish at the end – a long line, a curved design, two dots and what have you. Earlier, it was put in to prevent forgery by putting some uniqueness in the signature. What is the English word that means that flourish you put at the end of a signature?

4. There is a single English word that means a striptease performer. What is it?

5. I need to research more to find out why it is so but there is an English word to describe all books printed before the year 1501. (Very early stages of printing). Have you heard of that word?