Words that have 'h' as the second letter and 'k' as fifth letter

How many possible words can you make using the combination specified?
In total, there are 573 words.

Which word in particular on this page has the largest letter count?
The longest word one could assemble from this list is 'chickenheartedness', which has 18 characters.

Which is the most interesting word where the second letter is 'h' and fifth letter is 'k'?
One of the most weird words from this list of words where the second letter is 'h' and fifth letter is 'k' is 'whack'. The dictionary defines it as "To strike; to beat; to give a heavy or resounding blow to; to thrash; to make with whacks. [Colloq.] Rodsmen were whackingtheir way through willow brakes. G. W. Cable. To strike anything with a smart blow. To whack away, to continue striking heavy blows; as, to whack away at a log....".

What is the highest number of points you could get in Scrabble from this list of words where 'h' is the second letter and 'k' is the fifth letter?
As there are a massive 573 entries, you'll want to opt for 'checkoff' scoring 25 points in total.

Is there a word on this page that sticks out as the most popular?
As far as popular words go, there's 'think' which ranks as the 150^th most popular word.