Which word on this page ranks as the most popular?The most common word is 'seigneur', which is in fact the 11789th most popular word in the dictionary.
How many characters are in the longest word from this list?There are 22 letters in the word 'sternocleidomastoideus', that makes it the longest word Dictionarypedia has.
What is the highest scoring word in Scrabble you can play for ?Since there are heaps of words to decide on, your best bet is 'shakeups' which scores 17 points.
What's a peculiar word from the combinations possible ?The most notable word from this list is 'stomodaeum'. 'Stomodaeum' is defined as "1. (Anat.) A part of the alimentary canal. See under Mesenteron. 2. (Zoöl.) The primitive mouth and esophagus of the embryo of annelids and arthropods.", according to the dictionary.
What's the total number of words you are able to assemble using this combination of letters?From this page of words starting with 's' that contain 'eu', you have 156 entries that are available.