Words with 'bih' at the start and 'e' at the end

What is the total number of words one can assemble from words that start with 'bih' and end with 'e'?
On this list of words with 'bih' at the start and 'e' at the end, Dictionarypedia has found 3 combinations which can be selected.

What's the longest word you can derive from words that start with 'bih' and end with 'e'?
The word 'bihydrazine' has 11 characters.

What's the best score you could get in Scrabble using this list of words beginning with 'bih' and ending with 'e'?
As there is just 3 entries to choose from, you're obligated to use 'bihalve' for a total score of 15 points.