The -gry puzzle is a wording riddle gone horribly awry. The original message is supposed to read as follows:

"Think of words ending in -GRY. Angry and hungry are two of them. There
are only three words in the English language. What is the third word? The
word is something that everyone uses every day. If you have listened
carefully, I have already told you what it is."

Now, given that version of it, ignore the first two sentences. Get it now?

I googled for logic problems online and other puzzles and this site popped up. I think I've visited before but know I've never registered before...