Words beginning with 'fol'

Which word that starts with 'fol' is the most common word?
We're able to confirm that 'following' is the 459^th most common word.

What is the highest scoring word you can play in Scrabble ?
Since there are a myriad of words to choose from, your best bet is to go for 'folkways' scoring 21 points in total.

In total, how many words is it possible to make using the combination requested?
From this page of words beginning with 'fol', you have 162 unique entries which are possible in total.

Is there an example word from this page of word that starts with 'fol' that could be thought of as interesting in any regard?
The most strange word from this list is 'foliate'. The traditional definition of 'foliate' is as follows: "Furnished with leaves; leafy; as, a foliate stalk. Foliate curve. (Geom.) Same as Folium. 1. To beat into a leaf, or thin plate. Bacon. 2. To spread over with a thin coat of tin and quicksilver; as, to foliate a looking-glass.". Source Oxford Dictionary.

What is the longest word you can derive with words that start with 'fol'?
The largest word that's possible to construct from this list is 'foliobranchiate', and it has 15 characters.