BRAIN TEASERS

1. What word in the English language does the following: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire word signifies a great woman. What is the word?
2. What English word has three consecutive double letters?
3. What disappears as soon as you say its name?
4. What are the next three letters in this combination? OTTFFSS

Answers: 1. Heroine 2. Bookkeeper 3. Silence 4. E N T (Each letter represents the first letter in the written numbers: One, Two, Three, Four, Five, etc.).