Which Container Fills First

Which one will fill up first? 1

A simple water-pipe puzzle asks which container will fill up first, showing a faucet and a numbered container with several apparent pipe routes. The joke is an optical-illusion brain teaser: some routes are blocked, so the answer depends on noticing the obstructed pipes rather than simply following the visible plumbing.

• @memetutorial / 10736 2018-04-23