# PUZZLES

1 Any word can be written as a letter pyramid, as has been done here with the word PYRAMID. In general, if a word has n letters, how many ways are there of spelling it out starting at the apex and proceeding all the way down to a letter in the base? With each move you may only move from the letter you are on to the next letter by going to the letter slightly to the left or slightly to the right in the level immediately below. How many ways for the word PYRAMID?

2 Not every n-letter word can be written as a word rhombus. What are the restrictions on n? How many ways of spelling out RHOMBUS? How many ways are there of writing such a word if it contains n letters (the rules of transition being the same as in the previous question)?

3 Wordpool

Find the correct definition: ACCIPITRINE a) hawk-like b) accepting c) capital d) surreptitious

4 Same Difference

Identify these words that differ only in the letters shown: **** (turn...) ****E (... back)