What is the max number of words you can construct from this list?
You can go with up to a maximum of 43 entries.
What is an unique word that starts with 'k' and includes 'pa'?
Certainly one of the most unusual words from this page is kneepan. The definition of kneepan is as follows: "A roundish, flattened, sesamoid bone in the tendon in front of the knee joint; the patella; the kneecap."Credit to the Cambridge Dictionary
The longest word from this list is how many letters?
kathopanishad (13 letters)
What's the highest scoring Scrabble word possible to make?
One can make kashyapa which scores 20 points.