Only geniuses with a high IQ can guess which bottle will fill up first

In the teaser, the test is to work out which bottle of the seven pictured will fill up first. According to the people behind the teaser, only those with a high IQ can solve it in 15 seconds or less.

Didn’t get it? The key is to look at which bottles the water will flow into, something determined by which bottles are blocked.

Water from bottle one will flow into bottle two and then into bottle number 3. If one looks closely, one will see that the pipe connecting bottle one and bottle two is blocked.

As a result, the water will not reach bottles four or six, ruling them out.

Therefore, the water will only flow down to bottle number three.

Meanwhile, bottle number five and seven are connected, but the pipe connecting bottle number three and number seven is blocked too.

As a result, bottle number five is the one which will fill up first.

Although brain teasers can be frustrating, they are a great way to keep the brain sharp, providing it with daily puzzles to navigate around to maintain overall health.

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