How many actual words are possible to make using the specified combination?You could make 2 words with the specified combination.
How many letters does the longest word on this page consist of?The longest word is 9 characters, which is 'onionpeel'.
In Scrabble, what is the most points you can get from words that start with 'o' and contain 'npe'?As there are only a small number of words to choose from, your only viable choice is 'ovenpeel' for a total score of 13 points.