How many words could one make with this list?From this page of words containing 'th' and ending with 'na', you have 19 effective entries that are available overall.
What's the highest scoring word in Scrabble you can play for ?You can make 'janthina' for a score of 18 points.
What's a peculiar word from all the word combinations possible ?You'll notice several unusual words in this list, having said that our favorite word right now is 'thana'. The popular definition of 'thana' is as follows: "A police station. [India] Kipling.". Credit to the Cambridge Dictionary.
What's the longest word you can assemble using this list?There are 13 letters in the word 'graptolithina', making it the largest word we have.