Words that start with 'l' and contain 'ng'

In Scrabble, what is the highest possible score you can get using words that start with 'l' and contain 'ng'?
As there are heaps of words to pick from, you should pick 'lazying' which scores 20 points in total.

How many characters are in the longest word from this list?
'lymphangioendothelioma', which contains 22 letters.

What is an unusual word that starts with 'l' and includes 'ng'?
The most unusual word in this list is 'landing'. It is defined as "Of, pertaining to or used for, setting, bringing, or going, on shore. Landing charges, charges or fees paid on goods unloaded from a vessel. -- Landing net, a small, bag-shaped net, used in fishing to take the fish from the water after being hooked. -- Landing stage, a floating platform...".

Which word that starts with 'l' and includes 'ng' is the most common word in the dictionary?
The most popular word in this list is 'long', which is in fact the 130^th most popular word in this list.

In total, how many possible words can you make using this list?
You can make 1,025 words from the specified combination.