Games for the Brain has a wide variety of simple games that you might use to practice English (just a little for most games) and to give your brain a little exercise.
There are manipulation games like “Dragger”:
Find the difference games like “Counterfeit”:
Word games like “Anagramania”:
Geography games like “Guess the Place”:
There are many other memory games, guessing games, number games, trivia games, and much more.
There’s also a “Google Adventure” game: