Words that start with 'd' and contain 'ple'

What's the most popular word that starts with 'd' and includes 'ple' in the dictionary?
There's 'disciples' which is the 6316^th most popular word.

How many words are possible to make using the combination of letters requested?
There are 117 entries.

What is the largest word you can create using words that start with 'd' and include 'ple'?
The biggest word you could assemble from this list is 'dipleurobranchiate', and it contains 18 characters.

What's a peculiar word on this list?
Arguably one of the most weird words from this page is 'dapple'. According to the Oxford dictionary, 'dapple' means "One of the spots on a dappled animal. He has . . . As many eyes on his body as my gray mare hath dapples. Sir P. Sidney. Marked with spots of different shades of color; spotted; variegated; as, a dapple horse. Some dapple mists still floated along the peaks. Sir...".

What is the best score you're able to get in Scrabble using this list of words starting with 'd' that contain 'ple'?
With a considerable 117 entries, your best option is 'duplexed' which scores 19 points in total.