Brain Teaser: Which Glass Get's Full First [With Answer]

See solution below

Glass 1 will get full first as described in the image below:

Blue box indicates all glass that will get liquid in them.

Red "X" sign as denoted in the image shows blockage

Yellow Indicates the liquid and how it will flow to the glass cups
Orange box indicates the glass which will get full first which is Glass 1

The same principle explained @ Brain Teaser: Which Jar Will Fill First [With Answer] regarding the diametre of the mouth of  bottle the liquid is being poured from applies here also the angle at which it's being poured all factors why Glass 1 will fill first.

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