Words that contain 'g' and end in 'o'

What's the longest word you can assemble using this list?
The biggest word is 14 letters, which is 'churrigueresco'.

Which word that has 'g' in and ends with 'o' is the most popular word?
The most common word in this list is 'go', which happens to be the 135^th most popular word in the dictionary.

In total, how many words is it possible to make using these particular combinations of letters?
617!

What is an interesting word from this page of words that have 'g' in and end with 'o'?
One of the most strange words from this list is 'aerugo'. 'Aerugo' is defined as "The rust of any metal, esp. Of brass or copper; verdigris.", according to the English dictionary.

In Scrabble, what is the highest possible score you can get from this list of words that have 'g' in and end with 'o'?
With an enormous 617 entries, you may want to opt for 'bragozzo' which scores 29 points.