What is the highest scoring word in Scrabble available from this list ?For a total of 17 points, it is possible to use 'squiress'.
Is there any word on this page that stands out as the most popular?A popular word for the combination you requested is 'picturesqueness'.
What word from this list is the most unusual?Undoubtedly one of the most weird words from this list is 'disquietness'. The definition of 'disquietness' is as follows: "Disturbance of quiet in body or mind; restlessness; uneasiness. Hooker.". Source Oxford Dictionary.
What is the longest word you can create using words that have 'sq' in and end with 'ss'?The word 'oversqueamishness' contains 17 characters.
How many usable words are possible to put together with words that have 'sq' in and end with 'ss'?Overall, you can create exactly 34 words.