Brain twisters are puzzles or riddles that require critical thinking and problem-solving skills. The antonyms for brain twisters are straightforward and easy. These types of puzzles are known as simple, uncomplicated, or elementary. While brain twisters may be challenging and complex, simple puzzles can be fun and enjoyable for all ages. Unlike brain twisters, elementary puzzles do require much thought, and the solutions are often obvious to spot. These puzzles can provide a sense of accomplishment and a quick mental pick-me-up. Overall, brain twisters may be engaging, but simple puzzles can be just as rewarding.