Logical brain teaser: Test your IQ in 20 seconds – Which glass fills first?

Hey brainiacs, ready for a quick yet thrilling challenge? Let’s see how fast you can solve this: ‘Which glass fills first?’ Don’t blink or you might miss the answer! Test your IQ in just 20 seconds and show that brainpower of yours!

The enigma of water tank puzzles

Water tank puzzles are a specific type of brain teaser that challenge the solver to determine the rate at which water fills or drains from a tank.

These puzzles often involve multiple tanks, different flow rates, and sometimes even additional variables like holes in the tanks or varying shapes and sizes.

The goal is typically to figure out how long it will take to fill or empty a tank under certain conditions.

These puzzles require a combination of logic, arithmetic, and sometimes even knowledge of physics, making them a popular choice for those seeking a tough mental challenge.

These brain teasers that we so passionately create and present to you are immensely popular amongst our readers who love a good challenge.

Caution! Very difficult visual test! Few people can spot the 3 differences in 20 seconds max! How about you?

READ:  We bet you can't find the missing number in this brain-bending sequence in 25 seconds!

The complexity and intrigue they offer is not just entertaining but also serves as a great exercise for the mind. We hope you continue to enjoy these puzzles and keep your brains sharp and active.

Solution

Congratulations to those who solved it! And to those who didn’t, don’t worry. There are plenty of other puzzles waiting for you to tackle on our website. 

The solution is: glass 3

 

Logical brain teaser: Test your IQ in 20 seconds - Which glass fills first?
© Abmeyerwood

 

So why not challenge your friends or family by sharing this article? After all, a puzzle shared is a puzzle halved!

We invest considerable time and effort in constructing these engaging games daily, and it would fill us with joy if this article is shared across your social networks. Let’s spread the fun!

Monica Brimley
Hey, I'm Monica! I'm a 32-year-old organization nerd who's obsessed with finding clever solutions for everyday problems. From cleaning hacks to decluttering tips, I share practical advice to help you live smarter, not harder. Let's get organized!