Optical illusion: Only a genius can spot which tank will fill first in 5 seconds

Visual puzzles have been a popular means of assessing and enhancing critical thinking, logical thinking, and problem-solving skills for ages. These brain-challenging illusions challenge your brain to think rapidly, examine patterns, and anticipate results with spatial awareness and cause-and-effect.
Research indicates that solving difficult puzzles challenges the prefrontal cortex—the region of the brain that deals with logical reasoning and decision-making. The more you put your brain through such challenges, the clearer and more flexible you become
One of the greatest examples of brain-teasing puzzles is water flow puzzles, which challenge fluid intelligence—the capacity to reason logically and solve novel problems without drawing on past knowledge. These puzzles ask you to follow several water routes, recognize obstructions, and forecast the right outcome under time pressure. If you can quickly and correctly solve them, it indicates that you have good cognitive flexibility and high-level reasoning abilities
Put your problem-solving skills to the test with this tricky water tank puzzle! Can you determine which tank will fill up first in just 5 seconds? Only those with a sharp IQ and strong logical reasoning can crack the correct answer!
Think you've got a quick mind? This water flow puzzle will test your IQ to the maximum! Water begins flowing from Tank A, but which one will be full first? You've got just 5 seconds to know
Take a close look at the diagram. The water flows from the faucet into Tank A, which then pipes it to other tanks via a system of interlinked pipes.
At first glance, the solution may look obvious—but don't be decieved! Not all pipes are open—there are some with barriers that completely block the flow of water. People tend to hurry and answer without thoroughly inspecting the entire system, making false assumptions.
Keep in mind that water flows only through open pipes. If a tank's outlet is closed, it will not fill until another tank overflows. One wrong assumption may lead to the wrong answer!
So, can you beat the odds and find the correct answer quicker than 99% of the population? Take a close look, think carefully, and make your decision!
Still struggling? Take another look at the pathways! The first tank to fill is Tank C. Congratulations if you got it right! Your strong analytical skills set you apart from the rest. Keep challenging your brain with such puzzles to sharpen your intelligence further!