Words that contain 'oo' and end in 't'

How many characters are in the longest word on this list?
There are 22 characters in the word 'zoologicoarchaeologist', making it the biggest word we have.

What's the total number of words one can put together using this list?
On this page of words that have 'oo' in and end with 't', Dictionarypedia has found 548 combinations that are possible.

Is there a distinct word from this page of word that has 'oo' in and ends with 't' which might be deemed as unique?
The most interesting word from this list is surely 'spoondrift'. The definition of 'spoondrift' is as follows: "Spray blown from the tops waves during a gale at sea; also, snow driven in the wind at sea; -- written also spindrift.". Source Oxford Dictionary.

What's the highest scoring word in Scrabble with the above combination ?
With the amount of words to choose from, your best choice is 'jackboot' scoring 23 points.

What is the most common word that has 'oo' in and ends with 't' in the dictionary?
As far as popular words go, there's 'foot' which is the 804^th most popular word.