Scrabble is an excellent game for training your mind, at whatever age, and is both fun and challenging. Even better, Scrabble is social and is meant to be played with friends. You can set up your resident to play in person with their friends, socially-distanced of course, or play anytime with the Scrabble GO! app. To add spice to the game and promote multilingualism, allow residents to form words in languages other than English (provided the same letters can be used), if they know another language! This will boost the dynamism of the game, promote language learning and create a stronger bond between residents!
Check out the original idea here.