Perplexing

The road signs in the foreign country were written in a perplexing language, making navigation challenging.

The enigmatic painting left art critics perplexing over its meaning.

The labyrinthine streets of the old city were quite perplexing to navigate.

The perplexing ending of the movie left the viewers guessing until the very last scene.

The instructions for operating the new gadget were perplexing.