Did you make out that our brain requires exercising (as much as our body) in order to function efficiently, let it go and our mental processing can become lethargic? Well, how to exercise your brain then? Solving brain teasers is one of the simple but effective ways to boost your brain power! Here are some of the best (25, to be exact), handpicked, tricky, yet witty brain teasers to blow your mind away which appear difficult at first, but rest assured that they have a trick that makes them really easy to solve. Just think “out of the box” to work them out.