India, June 25 -- Brain teasers are puzzles that test how well you can think, observe, and solve problems. They are not always about maths- sometimes, they need you to focus and think in a smart way. These puzzles are a great way to keep your brain active and sharp.

Here is a brain teaser posted on X (formerly Twitter) by @Brainy_Bits_Hub which shows a few containers joined by pipes. Water is poured from the top, and your job is to figure out: Which container will fill up first? At first, it may look easy. But many people are getting it wrong.

The puzzle tricks your eyes by using clever pipe placements. Some pipes are blocked, some are lower than others, and some may lead to nowhere. So, if you just follow the water without looking clos...